Whitestone REIT (WSR) 10-K 15 Mar 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2018	Mar. 15, 2019	Jun. 29, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	Whitestone REIT
Entity Central Index Key	0001175535
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		39,766,240
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 490,696,053

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Real estate assets, at cost
Property	$ 1,052,238	$ 1,049,315	$ 1,052,771	$ 1,051,984	$ 1,149,454
Accumulated depreciation	(113,300)	(107,165)	(103,696)	(98,788)	(131,034)
Total real estate assets	938,938	942,150	949,075	953,196	1,018,420
Investment in real estate partnership	26,236	20,386	19,884	19,298	4,095
Cash and cash equivalents	13,658	9,389	3,125	6,976	5,005
Restricted cash	128	91	213	257	205
Marketable securities	0				32
Escrows and acquisition deposits	8,211	7,702	6,515	5,557	7,916
Accrued rents and accounts receivable, net of allowance for doubtful accounts	21,642	21,894	20,464	21,809	21,140
Receivable due from related party	394	308	772	894	0
Financed receivable due from related party	5,661	14,473	15,473	15,473	0
Unamortized lease commissions and loan costs	6,698	6,847	6,911	7,022	7,157
Prepaid expenses and other assets	7,306	10,597	10,217	9,441	6,198
Total assets	1,028,872	1,033,837	1,032,649	1,039,923	1,070,168
Liabilities:
Notes payable	618,205	618,685	619,354	619,986	659,068
Accounts payable and accrued expenses	33,729	33,178	29,504	28,622	35,536
Payable due to related party	58	1,276	1,067	699	0
Tenants' security deposits	6,130	5,920	5,769	5,766	5,694
Dividends and distributions payable	11,600	11,600	11,628	11,489	11,466
Total liabilities	669,722	670,659	667,322	666,562	711,764
Commitments and contingencies:	0	0	0	0	0
Equity:
Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of December 31, 2018 and December 31, 2017, respectively	0	0	0	0	0
Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,778,029 and 39,221,773 issued and outstanding as of December 31, 2018 and December 31, 2017, respectively	39	38	38	38	38
Additional paid-in capital	527,662	525,780	524,191	522,730	521,314
Accumulated deficit	(181,361)	(178,493)	(175,004)	(165,581)	(176,684)
Accumulated other comprehensive gain	4,116	7,034	6,430	5,528	2,936
Total Whitestone REIT shareholders' equity	350,456	354,359	355,655	362,715	347,604
Noncontrolling interest in subsidiary	8,694	8,819	9,672		10,800
Total equity	359,150	363,178	365,327	373,361	358,404	$ 267,628	$ 246,991
Total liabilities and equity	$ 1,028,872	$ 1,033,837	$ 1,032,649	$ 1,039,923	$ 1,070,168

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Stockholders' Equity:
Preferred shares, par value per share (in dollars per share)	$ 0.001	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Preferred shares, shares authorized (in shares)	50,000,000	50,000,000	50,000,000	50,000,000	50,000,000
Preferred shares, shares issued (in shares)	0	0	0	0	0
Preferred shares, shares outstanding (in shares)	0	0	0	0	0
Common shares, par value per share (in dollars per share)	$ 0.001	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Common shares, authorized (in shares)	400,000,000	400,000,000	400,000,000	400,000,000	400,000,000
Common shares, issued (in shares)	39,778,029	39,772,105	39,743,829	39,179,540	39,221,773
Common shares, outstanding (in shares)	39,778,029	39,772,105	39,743,829	39,179,540	39,221,773

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property revenues
Rental revenues		$ 21,964	$ 21,382	$ 21,672					$ 43,054	$ 65,018	$ 86,644	$ 94,568	$ 80,068
Other revenues		8,740	8,091	8,113					16,204	24,944	33,219	31,391	24,369
Total property revenues	$ 29,901	30,704	29,473	29,785	$ 33,831	$ 33,653	$ 30,208	$ 28,267	59,258	89,962	119,863	125,959	104,437
Property expenses
Property operation and maintenance		5,452	5,017	4,856					9,873	15,325	21,069	24,213	19,709
Real estate taxes		4,379	3,905	3,976					7,881	12,260	16,362	17,897	14,383
Total property expenses		9,831	8,922	8,832					17,754	27,585	37,431	42,110	34,092
Other expenses (income)
General and administrative		4,982	6,678	6,327					13,005	17,987	23,281	23,949	23,922
Depreciation and amortization		6,477	6,293	6,274					12,567	19,044	25,679	27,240	22,457
Equity in earnings of real estate partnership		(502)	(586)	(674)					(1,260)	(1,762)	(8,431)	0	0
Interest expense		6,419	6,313	5,973					12,286	18,705	25,177	23,651	19,239
Interest, dividend and other investment income		(251)	(284)	(257)					(541)	(792)	(1,055)	(410)	(429)
Total other expense		17,125	18,414	17,643					36,057	53,182	64,651	74,430	65,189
Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense		3,748	2,137	3,310					5,447	9,195	17,781	9,419	5,156
Provision for income taxes		(92)	(59)	(110)					(169)	(261)	(347)	(386)	(289)
Gain on sale of properties		4,380	0	249					249	4,629	4,629	16	3,357
Profit sharing expense		0	0						0	0	0	(278)	(15)
Loss on sale or disposal of assets		(3)	(73)	(180)					(253)	(256)	(82)	(183)	(96)
Net income	8,674	8,033	2,005	3,269	1,975	3,077	2,043	1,493	5,274	13,307	21,981	8,588	8,113
Less: Net income attributable to noncontrolling interests		198	51	88					138	342	550	254	182
Net income attributable to Whitestone REIT	$ 8,457	$ 7,835	$ 1,954	$ 3,181	$ 1,921	$ 2,993	$ 1,983	$ 1,440	$ 5,136	$ 12,965	$ 21,431	$ 8,334	$ 7,931
Basic Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.21	$ 0.20	$ 0.05	$ 0.08	$ 0.05	$ 0.07	$ 0.05	$ 0.05	$ 0.13	$ 0.33	$ 0.54	$ 0.22	$ 0.26
Diluted Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.21	$ 0.19	$ 0.05	$ 0.08	$ 0.05	$ 0.07	$ 0.05	$ 0.04	$ 0.12	$ 0.31	$ 0.52	$ 0.22	$ 0.26
Weighted average number of common shares outstanding:
Basic (in shares)		39,327	39,204	39,066					39,136	39,200	39,274	35,428	27,618
Diluted (in shares)		40,635	40,679	40,088					40,519	40,541	40,612	36,255	28,383
Distributions declared per common share / OP unit (in dollars per share)		$ 0.2850	$ 0.2850	$ 0.2850					$ 0.5700	$ 0.8550	$ 1.14	$ 1.1400	$ 1.1400
Consolidated Statements of Comprehensive Income
Net income	$ 8,674	$ 8,033	$ 2,005	$ 3,269	$ 1,975	$ 3,077	$ 2,043	$ 1,493	$ 5,274	$ 13,307	$ 21,981	$ 8,588	$ 8,113
Other comprehensive gain
Unrealized gain on cash flow hedging activities		605	913	2,645					3,558	4,163	1,192	2,022	929
Unrealized gain on available-for-sale marketable securities		0	0	18					18	18	18	118	82
Comprehensive income		8,638	2,918	5,932					8,850	17,488	23,191	10,728	9,124
Less: Net income attributable to noncontrolling interests		198	51	88					138	342	550	254	182
Less: Comprehensive gain attributable to noncontrolling interests		15	23	71					94	107	30	63	23
Comprehensive income attributable to Whitestone REIT		$ 8,425	$ 2,844	$ 5,773					$ 8,618	$ 17,039	$ 22,611	$ 10,411	$ 8,919

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - USD ($) $ in Thousands		Total	Total Shareholders' Equity [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Redeemable Noncontrolling Interests [Member]
Beginning Balance (in shares) at Dec. 31, 2015				26,991,000
Beginning Balance (in units) at Dec. 31, 2015								497,000
Beginning Balance at Dec. 31, 2015		$ 246,991	$ 242,974	$ 27	$ 359,971	$ (116,895)	$ (129)	$ 4,017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exchange of noncontrolling interest OP units for common shares (in shares)				15,000				(15,000)
Exchange of noncontrolling interest OP units for common shares		0	125		125		0	$ (125)
Issuance of common shares under dividend reinvestment plan (in shares)				9,000
Issuance of common shares under dividend reinvestment plan		114	114		114
Issuance of commons shares (in shares)				2,064,000
Issuance of common shares		30,014	30,014	$ 2	30,012
Issuance of OP units (in shares)								621,000
Issuance of OP units		8,738						$ 8,738
Repurchase of common shares (in shares)	[1]			(282,000)
Repurchase of common shares	[1]	(3,948)	(3,948)		(3,948)
Shared-based compensation (in shares)				671,000
Share-based compensation		10,231	10,231		10,231
Distributions		(33,636)	(32,731)			(32,731)		(905)
Unrealized gain on change in fair value of cash flow hedge		929	908				908	21
Unrealized loss on change in fair value of available-for sale marketable securities		82	80				80	2
Reallocation of ownership percentage between parent and subsidiary		0	(11)		(11)			11
Net income		8,113	7,931			7,931		182
Ending Balance at Dec. 31, 2016		267,628	255,687	$ 29	396,494	(141,695)	859	$ 11,941
Ending Balance (in shares) at Dec. 31, 2016				29,468,000
Ending Balance (in units) at Dec. 31, 2016								1,103,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exchange of noncontrolling interest OP units for common shares (in shares)				19,000				(19,000)
Exchange of noncontrolling interest OP units for common shares		0	206		206		0	$ (206)
Issuance of common shares under dividend reinvestment plan (in shares)				9,000
Issuance of common shares under dividend reinvestment plan		127	127		127
Issuance of commons shares (in shares)				1,324,000
Issuance of common shares		18,517	18,517	$ 1	18,516
Issuance of OP units (in shares)				8,019,000				0
Issuance of OP units		99,895		$ 8	99,887			$ 0
Repurchase of common shares (in shares)	[1]			(324,000)
Repurchase of common shares	[1]	(4,339)	(4,339)		(4,339)
Shared-based compensation (in shares)				707,000
Share-based compensation		10,410	10,410		10,410
Distributions		(44,562)	(43,323)			(43,323)		(1,239)
Unrealized gain on change in fair value of cash flow hedge		2,022	1,962				1,962	60
Unrealized loss on change in fair value of available-for sale marketable securities		118	115				115	3
Reallocation of ownership percentage between parent and subsidiary		0	13		13			(13)
Net income		8,588	8,334			8,334		254
Ending Balance at Dec. 31, 2017		$ 358,404	347,604	$ 38	521,314	(176,684)	2,936	$ 10,800
Ending Balance (in shares) at Dec. 31, 2017		39,221,773		39,222,000
Ending Balance (in units) at Dec. 31, 2017								1,084,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Unrealized gain on change in fair value of cash flow hedge		$ 2,645
Unrealized loss on change in fair value of available-for sale marketable securities		18
Net income		3,269
Ending Balance at Mar. 31, 2018		$ 373,361
Ending Balance (in shares) at Mar. 31, 2018		39,179,540
Beginning Balance (in shares) at Dec. 31, 2017		39,221,773		39,222,000
Beginning Balance (in units) at Dec. 31, 2017								1,084,000
Beginning Balance at Dec. 31, 2017		$ 358,404	347,604	$ 38	521,314	(176,684)	2,936	$ 10,800
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Unrealized gain on change in fair value of cash flow hedge		3,558
Unrealized loss on change in fair value of available-for sale marketable securities		18
Net income		5,274
Ending Balance at Jun. 30, 2018		$ 365,327
Ending Balance (in shares) at Jun. 30, 2018		39,743,829
Beginning Balance (in shares) at Dec. 31, 2017		39,221,773		39,222,000
Beginning Balance (in units) at Dec. 31, 2017								1,084,000
Beginning Balance at Dec. 31, 2017		$ 358,404	347,604	$ 38	521,314	(176,684)	2,936	$ 10,800
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Unrealized gain on change in fair value of cash flow hedge		4,163
Unrealized loss on change in fair value of available-for sale marketable securities		18
Net income		13,307
Ending Balance at Sep. 30, 2018		$ 363,178
Ending Balance (in shares) at Sep. 30, 2018		39,772,105
Beginning Balance (in shares) at Dec. 31, 2017		39,221,773		39,222,000
Beginning Balance (in units) at Dec. 31, 2017								1,084,000
Beginning Balance at Dec. 31, 2017		$ 358,404	347,604	$ 38	521,314	(176,684)	2,936	$ 10,800
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exchange of noncontrolling interest OP units for common shares (in shares)				155,000				(155,000)
Exchange of noncontrolling interest OP units for common shares		0	1,546	$ 1	1,545		0	$ (1,546)
Issuance of common shares under dividend reinvestment plan (in shares)				10,000
Issuance of common shares under dividend reinvestment plan		133	133		133
Exchange offer costs		(126)	(126)		(126)
Repurchase of common shares (in shares)	[1]			(160,000)
Repurchase of common shares	[1]	(1,961)	(1,961)		(1,961)
Shared-based compensation (in shares)				551,000
Share-based compensation		6,742	6,742	$ 0	6,742
Distributions		(46,352)	(45,227)			(45,227)		(1,125)
Unrealized gain on change in fair value of cash flow hedge		1,192	1,162				1,162	30
Unrealized loss on change in fair value of available-for sale marketable securities		18	18				18	0
Reallocation of ownership percentage between parent and subsidiary		0	15		15			(15)
Net income		21,981	21,431			21,431		550
Ending Balance at Dec. 31, 2018		$ 359,150	350,456	$ 39	527,662	(181,361)	4,116	$ 8,694
Ending Balance (in shares) at Dec. 31, 2018		39,778,029		39,778,000
Ending Balance (in units) at Dec. 31, 2018								929,000
Beginning Balance (in shares) at Mar. 31, 2018		39,179,540
Beginning Balance at Mar. 31, 2018		$ 373,361
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Unrealized gain on change in fair value of cash flow hedge		913
Unrealized loss on change in fair value of available-for sale marketable securities		0
Net income		2,005
Ending Balance at Jun. 30, 2018		$ 365,327
Ending Balance (in shares) at Jun. 30, 2018		39,743,829
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Unrealized gain on change in fair value of cash flow hedge		$ 605
Unrealized loss on change in fair value of available-for sale marketable securities		0
Net income		8,033
Ending Balance at Sep. 30, 2018		$ 363,178
Ending Balance (in shares) at Sep. 30, 2018		39,772,105
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 8,674
Ending Balance at Dec. 31, 2018		$ 359,150	$ 350,456	$ 39	$ 527,662	$ (181,361)	$ 4,116	$ 8,694
Ending Balance (in shares) at Dec. 31, 2018		39,778,029		39,778,000
Ending Balance (in units) at Dec. 31, 2018								929,000
[1]	During the years ended December 31, 2018, 2017 and 2016, the Company acquired common shares held by employees who tendered owned common shares to satisfy the tax withholding on the lapse of certain restrictions on restricted shares.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income	$ 21,981,000	$ 8,588,000	$ 8,113,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	25,679,000	27,240,000	22,457,000
Amortization of deferred loan costs	1,092,000	1,283,000	1,554,000
Amortization of notes payable discount	0	508,000	391,000
Loss on sale of marketable securities	20,000	91,000	0
Loss (gain) on sale or disposal of assets and properties	(4,547,000)	167,000	(3,261,000)
Bad debt expense	1,391,000	2,340,000	1,585,000
Share-based compensation	6,741,000	10,410,000	10,231,000
Equity in earnings of real estate partnership	(8,431,000)	0	0
Changes in operating assets and liabilities:
Escrows and acquisition deposits	(295,000)	(3,570,000)	2,322,000
Accrued rent and accounts receivable	(1,893,000)	(5,430,000)	(3,630,000)
Receivable due from related party	610,000	0	0
Distributions from real estate partnership	1,324,000	0	0
Unamortized lease commissions	(1,676,000)	(2,299,000)	(1,474,000)
Prepaid expenses and other assets	1,175,000	168,000	1,396,000
Accounts payable and accrued expenses	(2,429,000)	1,337,000	1,089,000
Payable due to related party	(1,621,000)	0	0
Tenants' security deposits	436,000	565,000	(125,000)
Net cash provided by operating activities	39,557,000	41,398,000	40,648,000
Cash flows from investing activities:
Acquisitions of real estate	0	(125,468,000)	(60,616,000)
Additions to real estate	(11,638,000)	(17,575,000)	(22,036,000)
Proceeds from sales of properties	12,574,000	26,000	6,897,000
Proceeds from financed receivable due from related party	9,812,000	0	0
Investment in real estate partnership	0	(2,394,000)	(2,704,000)
Proceeds from sales of marketable securities	30,000	513,000	0
Net cash provided by (used in) investing activities	10,778,000	(144,898,000)	(78,459,000)
Cash flows from financing activities:
Distributions paid to common shareholders	(44,944,000)	(40,472,000)	(31,911,000)
Distributions paid to OP unit holders	(1,155,000)	(1,241,000)	(729,000)
Proceeds from issuance of common shares, net of offering costs	0	118,412,000	30,014,000
Payments of exchange offer costs	(126,000)	0	0
Net proceeds from credit facility	9,000,000	45,600,000	59,000,000
Repayments of notes payable	(2,543,000)	(11,543,000)	(14,335,000)
Payments of loan origination costs	(30,000)	(695,000)	0
Repurchase of common shares	(1,961,000)	(4,339,000)	(3,948,000)
Net cash provided by (used in) financing activities	(41,759,000)	105,722,000	38,091,000
Net increase in cash, cash equivalents and restricted cash	8,576,000	2,222,000	280,000
Cash, cash equivalents and restricted cash at beginning of period	5,210,000	2,988,000	2,708,000
Cash, cash equivalents and restricted cash at end of period	13,786,000	5,210,000	2,988,000
Supplemental disclosure of cash flow information:
Cash paid for interest	24,610,000	22,541,000	18,287,000
Cash paid for taxes	304,000	337,000	284,000
Non cash investing and financing activities:
Disposal of fully depreciated real estate	937,000	1,036,000	690,000
Financed insurance premiums	1,273,000	1,115,000	1,060,000
Value of shares issued under dividend reinvestment plan	133,000	127,000	114,000
Value of common shares exchanged for OP units	1,546,000	206,000	125,000
Change in fair value of available-for-sale securities	18,000	118,000	82,000
Change in fair value of cash flow hedge	1,192,000	2,022,000	929,000
Acquisition of real estate in exchange for OP units	0	0	8,738,000
Reallocation of ownership percentage between parent and subsidiary	15,000	13,000	11,000
Debt issued with acquisitions of real estate	0	80,000,000	0
Property received as termination fee	$ 250,000	$ 0	$ 0

Description of Business and Nat

Description of Business and Nature of Operations	12 Months Ended
	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF BUSINESS AND NATURE OF OPERATIONS	DESCRIPTION OF BUSINESS AND NATURE OF OPERATIONS Whitestone REIT (“Whitestone”) was formed as a real estate investment trust, pursuant to the Texas Real Estate Investment Trust Act on August 20, 1998. In July 2004, we changed our state of organization from Texas to Maryland pursuant to a merger where we merged directly with and into a Maryland real estate investment trust formed for the sole purpose of the reorganization and the conversion of each of our outstanding common shares of beneficial interest of the Texas entity into 1.42857 common shares of beneficial interest of the Maryland entity. We serve as the general partner of Whitestone REIT Operating Partnership, L.P. (the “Operating Partnership” or “WROP” or “OP”), which was formed on December 31, 1998 as a Delaware limited partnership. We currently conduct substantially all of our operations and activities through the Operating Partnership. As the general partner of the Operating Partnership, we have the exclusive power to manage and conduct the business of the Operating Partnership, subject to certain customary exceptions. As of December 31, 2018 , 2017 and 2016 , we owned 57 , 73 , and 69 commercial properties, respectively, in and around Austin, Chicago, Dallas-Fort Worth, Houston, Phoenix and San Antonio. These properties consist of: Consolidated Operating Portfolio • 51 wholly-owned properties that meet our Community Centered Properties ® strategy; and Redevelopment, New Acquisitions Portfolio • six parcels of land held for future development. As of December 31, 2018, we, through our investment in Pillarstone Capital REIT Operating Partnership LP (“Pillarstone” or “Pillarstone OP”), owned a majority interest in 11 properties that do not meet our Community Centered Property® strategy containing approximately 1.3 million square feet of GLA (the “Pillarstone Properties”). We own 81.4% of the total outstanding units of Pillarstone OP, which we account for using the equity method. We also manage the day-to-day operations of Pillarstone OP.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Consolidation. We are the sole general partner of the Operating Partnership and possess full legal control and authority over the operations of the Operating Partnership. As of December 31, 2018 , 2017 and 2016 , we owned a majority of the partnership interests in the Operating Partnership. Consequently, the accompanying consolidated financial statements include the accounts of the Operating Partnership. Noncontrolling interest in the accompanying consolidated financial statements represents the share of equity and earnings of the Operating Partnership allocable to holders of partnership interests other than us. Net income or loss is allocated to noncontrolling interests based on the weighted-average percentage ownership of the Operating Partnership during the year. Issuance of additional common shares of beneficial interest in Whitestone (the “common shares”) and units of limited partnership interest in the Operating Partnership that are convertible into cash or, at our option, common shares on a one -for- one basis (the “OP units”) changes the percentage of ownership interests of both the noncontrolling interests and Whitestone. Profit-sharing Method. In accordance with the Financial Accounting Standards Board’s (“FASB”) guidance applicable to sales of real estate or interests therein, specifically FASB Accounting Standards Codification (“ASC”) 360-20, “ Real Estate Sales, ” Topic 606, “ Revenue from Contracts with Customers ” and ASC 610, “ Other Income–Gains and Losses from the Derecognition of Nonfinancial Assets ,” we did not recognize the sale of assets to Pillarstone OP in the Contribution (as defined in Note 5) and accounted for the transaction under the profit-sharing method for the year ended December 31, 2017. We recognized Pillarstone OP’s real estate assets and notes payables in our consolidated balance sheets. Additionally, the profits and losses of Pillarstone OP not attributable to the Company were reported as profit sharing expense. As a result of the adoption of Topic 606 and ASC 610, the Company derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and recognized the Company’s investment in Pillarstone OP under the equity method. Equity Method. For the year ended December 31, 2017, Pillarstone OP was accounted under the profit-sharing method. As a result of the adoption of Topic 606 and ASC 610, the Company derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and recognized the Company’s investment in Pillarstone OP under the equity method. See Note 5 and Note 19 for additional disclosure on Pillarstone OP. As of December 31, 2018, we, through our investment in Pillarstone OP, owned a majority interest in 11 properties that do not meet our Community Centered Property® strategy containing approximately 1.3 million square feet of GLA. We own 81.4% of the total outstanding units of Pillarstone OP. We also manage the day-to-day operations of Pillarstone OP. In this Annual Report on Form 10-K, unless otherwise indicated, we do not include the Pillarstone Properties when we refer to our properties. Basis of Accounting. Our financial records are maintained on the accrual basis of accounting whereby revenues are recognized when earned and expenses are recorded when incurred. Use of Estimates. The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates that we use include the estimated fair values of properties acquired, the estimated useful lives for depreciable and amortizable assets and costs, the estimated allowance for doubtful accounts, the estimated fair value of interest rate swaps and the estimates supporting our impairment analysis for the carrying values of our real estate assets. Actual results could differ from those estimates. Reclassifications. We have reclassified certain prior year amounts in the accompanying consolidated financial statements in order to be consistent with the current fiscal year presentation. Other than the effects noted below, these reclassifications had no effect on net income, total assets, total liabilities or equity. Restricted Cash. We classify all cash pledged as collateral to secure certain obligations and all cash whose use is limited as restricted cash. During 2015, pursuant to the terms of our $15.1 million 4.99% Note, due January 6, 2024, which is collateralized by our Anthem Marketplace property, we were required by the lenders thereunder to establish a cash management account controlled by the lenders to collect all amounts generated by our Anthem Marketplace property in order to collateralize such promissory note. Immaterial Error Correction. During the second quarter of 2018, we determined that certain prior period amounts contained errors due to our initial determination that we were the primary beneficiary of a variable interest entity (“VIE”), Pillarstone OP. See Note 5 and Note 19 for additional disclosure on Pillarstone OP. Management evaluated the materiality of the errors quantitatively and qualitatively, and concluded that they were not material to the financial statements of any period presented, and elected to correct them in the accompanying prior period consolidated financial statements. The following table presents the effects of the immaterial error correction on the consolidated statements of operations and comprehensive income (in thousands): Year Ended December 31, 2017 As Reported Correction of Error As Adjusted Net income $ 8,866 $ (278 ) $ 8,588 Net income attributable to noncontrolling interests 532 (278 ) 254 Year Ended December 31, 2016 As Reported Correction of Error As Adjusted Net income $ 8,128 $ (15 ) $ 8,113 Net income attributable to noncontrolling interests 197 (15 ) 182 Share-Based Compensation. From time to time, we award nonvested restricted common share awards or restricted common share unit awards, which may be converted into common shares, to executive officers and employees under our 2008 Long-Term Equity Incentive Ownership Plan (the “2008 Plan”). The vast majority of the awarded shares and units vest when certain performance conditions are met. We recognize compensation expense when achievement of the performance conditions is probable based on management’s most recent estimates using the fair value of the shares as of the grant date. We recognized $6.8 million , $10.4 million and $10.2 million in share-based compensation expense for the years ended December 31, 2018 , 2017 and 2016 , respectively. At our annual meeting of shareholders on May 11, 2017, our shareholders voted to approve the 2018 Long-Term Equity Incentive Ownership Plan (the “2018 Plan”). The 2018 Plan provides for the issuance of up to 3,433,831 common shares and OP units pursuant to awards under the 2018 Plan. The 2018 Plan became effective on July 30, 2018, which was the day after the 2008 Plan expired. Noncontrolling Interests. Noncontrolling interests are the portion of equity in a subsidiary not attributable to a parent. The ownership interests not held by the parent are considered noncontrolling interests. Accordingly, we have reported noncontrolling interests in equity on the consolidated balance sheets but separate from Whitestone’s equity. On the consolidated statements of operations and comprehensive income, subsidiaries are reported at the consolidated amount, including both the amount attributable to Whitestone and noncontrolling interests. Consolidated statements of changes in equity are included for both quarterly and annual financial statements, including beginning balances, activity for the period and ending balances for shareholders’ equity, noncontrolling interests and total equity. Revenue Recognition. All leases on our properties are classified as operating leases, and the related rental income is recognized on a straight-line basis over the terms of the related leases. Differences between rental income earned and amounts due per the respective lease agreements are capitalized or charged, as applicable, to accrued rents and accounts receivable. Percentage rents are recognized as rental income when the thresholds upon which they are based have been met. Recoveries from tenants for taxes, insurance, and other operating expenses are recognized as revenues in the period the corresponding costs are incurred. We have established an allowance for doubtful accounts against the portion of tenant accounts receivable which is estimated to be uncollectible. Cash and Cash Equivalents. We consider all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. Cash and cash equivalents as of December 31, 2018 and 2017 consisted of demand deposits at commercial banks and brokerage accounts. We may have net book credit balances in our primary disbursement accounts at the end of a reporting period. We classify such credit balances as accounts payable in our consolidated balance sheets as checks presented for payment to these accounts are not payable by our banks under overdraft arrangements, and, therefore, do not represent short-term borrowings. As of December 31, 2018 and 2017 , there were net book credit balances of $0.0 and $0.8 million , respectively, in our primary disbursement accounts that were classified as accounts payable on our consolidated balance sheets. Marketable Securities. We classify our existing marketable equity securities as available-for-sale in accordance with the Financial Accounting Standards Board’s (“FASB”) Investments-Debt and Equity Securities guidance. These securities are carried at fair value with unrealized gains and losses reported in equity as a component of accumulated other comprehensive income or loss. The fair value of the marketable securities is determined using Level 1 inputs under FASB Accounting Standards Codification (“ASC”) 820, “ Fair Value Measurements and Disclosures.” Level 1 inputs represent quoted prices available in an active market for identical investments as of the reporting date. Gains and losses on securities sold are based on the specific identification method, and are reported as a component of interest, dividend and other investment income. Real Estate Development Properties. Land, buildings and improvements are recorded at cost. Expenditures related to the development of real estate are carried at cost which includes capitalized carrying charges and development costs. Carrying charges (interest and real estate taxes) are capitalized as part of construction in progress. The capitalization of such costs ceases when the property, or any completed portion, becomes available for occupancy. For the year ended December 31, 2018 , approximately $574,000 and $365,000 in interest expense and real estate taxes, respectively, were capitalized. For the year ended December 31, 2017 , approximately $439,000 and $277,000 in interest expense and real estate taxes, respectively, were capitalized. For the year ended December 31, 2016 , approximately $324,000 and $71,000 in interest expense and real estate taxes, respectively, were capitalized. Acquired Properties and Acquired Lease Intangibles. We allocate the purchase price of the acquired properties to land, building and improvements, identifiable intangible assets and to the acquired liabilities based on their respective fair values at the time of purchase. Identifiable intangibles include amounts allocated to acquired out-of-market leases, the value of in-place leases and customer relationship value, if any. We determine fair value based on estimated cash flow projections that utilize appropriate discount and capitalization rates and available market information. Estimates of future cash flows are based on a number of factors including the historical operating results, known trends and specific market and economic conditions that may affect the property. Factors considered by management in our analysis of determining the as-if-vacant property value include an estimate of carrying costs during the expected lease-up periods considering market conditions, and costs to execute similar leases. In estimating carrying costs, management includes real estate taxes, insurance and estimates of lost rentals at market rates during the expected lease-up periods, tenant demand and other economic conditions. Management also estimates costs to execute similar leases including leasing commissions, tenant improvements, legal and other related expenses. Intangibles related to out-of-market leases and in-place lease value are recorded as acquired lease intangibles and are amortized as an adjustment to rental revenue or amortization expense, as appropriate, over the remaining terms of the underlying leases. Premiums or discounts on acquired out-of-market debt are amortized to interest expense over the remaining term of such debt. Depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of 5 to 39 years for improvements and buildings, respectively. Tenant improvements are depreciated using the straight-line method over the life of the improvement or remaining term of the lease, whichever is shorter. Impairment. We review our properties for impairment at least annually or whenever events or changes in circumstances indicate that the carrying amount of the assets, including accrued rental income, may not be recoverable through operations. We determine whether an impairment in value has occurred by comparing the estimated future cash flows (undiscounted and without interest charges), including the estimated residual value of the property, with the carrying cost of the property. If impairment is indicated, a loss will be recorded for the amount by which the carrying value of the property exceeds its fair value. Management has determined that there has been no impairment in the carrying value of our real estate assets as of December 31, 2018 . Accrued Rents and Accounts Receivable. Included in accrued rent and accounts receivable are base rents, tenant reimbursements and receivables attributable to recording rents on a straight-line basis. An allowance for the uncollectible portion of accrued rents and accounts receivable is determined based upon customer credit-worthiness (including expected recovery of our claim with respect to any tenants in bankruptcy), historical bad debt levels, and current economic trends. As of December 31, 2018 and 2017 , we had an allowance for uncollectible accounts of $9.7 million and $8.6 million , respectively. As of December 31, 2018 , 2017 and 2016 , we recorded bad debt expense in the amount of $1.4 million , $2.3 million and $1.6 million , respectively, related to tenant receivables that we specifically identified as potentially uncollectible based on our assessment of each tenant’s credit-worthiness. Bad debt expenses and any related recoveries are included in property operation and maintenance expense. Unamortized Lease Commissions and Loan Costs. Leasing commissions are amortized using the straight-line method over the terms of the related lease agreements. Loan costs are amortized on the straight-line method over the terms of the loans, which approximates the interest method. Costs allocated to in-place leases whose terms differ from market terms related to acquired properties are amortized over the remaining life of the respective leases. Prepaids and Other Assets. Prepaids and other assets include escrows established pursuant to certain mortgage financing arrangements for real estate taxes and insurance and acquisition deposits which include earnest money deposits on future acquisitions. Federal Income Taxes. We elected to be taxed as a REIT under the Code beginning with our taxable year ended December 31, 1999. As a REIT, we generally are not subject to federal income tax on income that we distribute to our shareholders. If we fail to qualify as a REIT in any taxable year, we will be subject to federal income tax on our taxable income at regular corporate rates. We believe that we are organized and operate in such a manner as to qualify to be taxed as a REIT, and we intend to operate so as to remain qualified as a REIT for federal income tax purposes. State Taxes. We are subject to the Texas Margin Tax, which is computed by applying the applicable tax rate ( 1% for us) to the profit margin, which, generally, will be determined for us as total revenue less a 30% standard deduction. Although the Texas Margin Tax is not considered an income tax, FASB ASC 740, “Income Taxes” (“ASC 740”) applies to the Texas Margin Tax. As of December 31, 2018 , 2017 and 2016 , we recorded a margin tax provision of $0.4 million , $0.4 million and $0.2 million , respectively. Fair Value of Financial Instruments. Our financial instruments consist primarily of cash, cash equivalents, accounts receivable, accounts and notes payable and investments in marketable securities. The carrying value of cash, cash equivalents, accounts receivable and accounts payable are representative of their respective fair values due to their short-term nature. The fair value of our long-term debt, consisting of fixed rate secured notes, variable rate secured notes and an unsecured revolving credit facility aggregate to approximately $618.6 million and $659.6 million as compared to the book value of approximately $619.4 million and $660.9 million as of December 31, 2018 and 2017 , respectively. The fair value of our long-term debt is estimated on a Level 2 basis (as provided by ASC 820, “Fair Value Measurements and Disclosures ” (“ASC 820”)), using a discounted cash flow analysis based on the borrowing rates currently available to us for loans with similar terms and maturities, discounting the future contractual interest and principal payments. The fair value of our loan guarantee to Pillarstone OP is estimated on a Level 3 basis (as provided by ASC 820, “ Fair Value Measurements and Disclosures” ), using a probability-weighted discounted cash flow analysis based on a discount rate, discounting the loan balance. Disclosure about fair value of financial instruments is based on pertinent information available to management as of December 31, 2018 and 2017 . Although management is not aware of any factors that would significantly affect the fair value amounts, such amounts have not been comprehensively revalued for purposes of these financial statements since December 31, 2018 and current estimates of fair value may differ significantly from the amounts presented herein. Derivative Instruments and Hedging Activities. We utilize derivative financial instruments, principally interest rate swaps, to manage our exposure to fluctuations in interest rates. We have established policies and procedures for risk assessment, and the approval, reporting and monitoring of derivative financial instruments. We recognize our interest rate swaps as cash flow hedges with the effective portion of the changes in fair value recorded in comprehensive income and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. Any ineffective portion of a cash flow hedge’s change in fair value is recorded immediately into earnings. Our cash flow hedges are determined using Level 2 inputs under ASC 820. Level 2 inputs represent quoted prices in active markets for similar assets or liabilities; quoted prices in markets that are not active; and model-derived valuations whose inputs are observable. As of December 31, 2018 , we consider our cash flow hedges to be highly effective. Concentration of Risk. Substantially all of our revenues are obtained from office, warehouse and retail locations in the Austin, Chicago, Dallas-Fort Worth, Houston, Phoenix and San Antonio metropolitan areas. We maintain cash accounts in major U.S. financial institutions. The terms of these deposits are on demand to minimize risk. The balances of these accounts sometimes exceed the federally insured limits, although no losses have been incurred in connection with these deposits. Recent Accounting Pronouncements. In May 2014, the FASB issued guidance, as amended in subsequent updates, establishing a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most of the existing revenue recognition guidance. The standard also requires an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and also requires certain additional disclosures. This guidance became effective for the reporting periods beginning on or after December 15, 2017, and interim periods within those fiscal years. We adopted this guidance on a modified retrospective basis beginning January 1, 2018 and have derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and have recognized the Company’s investment in Pillarstone OP under the equity method of accounting. The Company made an adjustment which decreased the Company’s accumulated deficit as of January 1, 2018 by $19.1 million . See Note 5 and Note 19 for further details. In February 2016, the FASB issued guidance requiring lessees to recognize a lease liability and a right-of-use asset for all leases. Lessor accounting will remain largely unchanged with the exception of changes related to costs which qualify as initial direct costs. The guidance will also require new qualitative and quantitative disclosures to help financial statement users better understand the timing, amount and uncertainty of cash flows arising from leases. This guidance is effective for reporting periods beginning on or after December 15, 2018, with early adoption permitted. We adopted the guidance and its related amendments as of January 1, 2019 using the transition practical expedient which allows us to recognize a cumulative-effect adjustment to the opening balance of retained earnings as of the adoption date as well as other elected practical expedients. Additionally, we have elected the optional transition practical expedient for lessors that permits lessors to make an accounting policy election to not separate nonlease components from the associated lease components, if the following two criteria are met: (1) the timing and pattern of transfer of the lease and nonlease components are the same and (2) the lease component would be classified as an operating lease if accounted for separately. As a result, leases where we are the lessor are accounted for in a similar manner to existing standards with the underlying leased asset being reported and recognized as a real estate asset. We have identified our lease commitments and finalized our evaluation on our consolidated financial statements and on our internal accounting processes. Substantially all of our real estate lessor commitments continued to be accounted for as operating leases, and the new leasing standard did not have a material impact on rental revenues. Our lessee operating lease commitments are subject to the standard and recognized as operating lease liabilities and right-of-use assets upon adoption. Our adoption of the new leasing standard did not have a material impact on our consolidated financial statements. Upon our adoption of the guidance as of January 1, 2019, we increased lease liabilities and corresponding right-of-use assets. Such adoption resulted in certain costs (primarily legal costs related to lease negotiations) being expensed rather than capitalized. We capitalized $406,000 in legal related costs for the year ended December 31, 2018 . These transition adjustments did not have a material impact on our consolidated balance sheet. Additionally, this guidance did not have a material impact on our consolidated statement of income upon adoption. In November 2016, the FASB issued guidance requiring that the statement of cash flows explain the change during the period in the total cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. This guidance became effective for the reporting periods beginning on or after December 15, 2017, and interim periods within those fiscal years. We adopted this guidance effective January 1, 2018, and we have reconciled cash and cash equivalents and restricted cash and restricted cash equivalents on a retrospective basis, whereas under the previous guidance, we reported restricted cash and restricted cash equivalents under cash flows from financing activities. In January 2017, the FASB issued guidance clarifying the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or dispositions) of assets or businesses. This guidance became effective for the reporting periods beginning on or after December 15, 2017, and interim periods within those fiscal years. We adopted this guidance on a prospective basis beginning January 1, 2018 and believe the majority of our future acquisitions will qualify as asset acquisitions and the associated transaction costs will be capitalized as opposed to expensed under previous guidance. In February 2017, the FASB issued guidance clarifying the scope of asset derecognition guidance, adds guidance for partial sales of nonfinancial assets and clarifies recognizing gains and losses from the transfer of nonfinancial assets in contracts with noncustomers. This guidance became effective for the reporting periods beginning on or after December 15, 2017, and interim periods within those fiscal years. We adopted this guidance on a modified retrospective basis beginning January 1, 2018 and have derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and have recognized the Company’s investment in Pillarstone OP under the equity method of accounting. The Company made an adjustment which decreased the Company’s accumulated deficit as of January 1, 2018 by $19.1 million . See Note 5 and Note 19 for further details.

Marketable Securities

Marketable Securities	12 Months Ended
	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
MARKETABLE SECURITIES	MARKETABLE SECURITIES In January 2018, we sold all of our remaining marketable securities and had no marketable securities as of December 31, 2018 . All of our marketable securities were classified as available-for-sale securities as of December 31, 2017 . Available-for-sale securities consist of the following (in thousands): December 31, 2018 Amortized Cost Gains in Accumulated Other Comprehensive Income Losses in Accumulated Other Comprehensive Income Estimated Fair Value Real estate sector common stock $ — $ — $ — $ — Total available-for-sale securities $ — $ — $ — $ — December 31, 2017 Amortized Cost Gains in Accumulated Other Comprehensive Income Losses in Accumulated Other Comprehensive Income Estimated Fair Value Real estate sector common stock $ 50 $ — $ (18 ) $ 32 Total available-for-sale securities $ 50 $ — $ (18 ) $ 32 During the years ended December 31, 2018 and 2017, available-for-sale securities were sold for total proceeds of $30,000 and $513,000 , respectively. The gross realized losses on these sales totaled $20,000 and $5,000 , respectively. For the purpose of determining gross realized gains and losses, the cost of securities sold is based on specific identification. A net unrealized holding loss on available-for-sale securities in the amount of $0 and $18,000 for the years ended December 31, 2018 and 2017 , respectively, has been included in accumulated other comprehensive income.

Real Estate

Real Estate	12 Months Ended
	Dec. 31, 2018
Real Estate [Abstract]
REAL ESTATE	REAL ESTATE As of December 31, 2018 , we owned 57 commercial properties in the Austin, Chicago, Dallas-Fort Worth, Houston, Phoenix and San Antonio areas comprised of approximately 4.8 million square feet of gross leasable area (“GLA”). Property Acquisitions. On December 29, 2017, we acquired a 1.83 acre parcel of undeveloped land for $0.9 million in cash and net prorations. The undeveloped land parcel is the hard corner at our Eldorado Plaza property. On May 26, 2017, we acquired BLVD Place, a property that meets our Community Centered Property ® strategy, for $158.0 million , including $80.0 million of asset level mortgage financing and $78.0 million in cash and net prorations. BLVD Place, a 216,944 square foot property, was 99% leased at the time of purchase and is located in Houston, Texas. Included in the purchase of BLVD Place is approximately 1.43 acres of developable land. On May 3, 2017, we acquired Eldorado Plaza, a property that meets our Community Centered Property ® strategy, for $46.6 million in cash and net prorations. Eldorado Plaza, a 221,577 square foot property, was 96% leased at the time of purchase and is located in McKinney, Texas, a suburb of Dallas, Texas. On September 30, 2016, we acquired La Mirada and Seville, properties that meet our Community Centered Property ® strategy, for 621,053 OP units and $60.7 million in cash and net prorations. The OP units are redeemable for cash or, at our option, Whitestone REIT common shares on a one -for- one basis, subject to certain restrictions. La Mirada, a 147,209 square foot property, was 90% leased at the time of purchase. Seville, a 90,042 square foot property, was 88% leased at the time of purchase. Both properties are located in Scottsdale, Arizona. Unaudited pro forma results of operations. The following unaudited pro forma results summarized below reflect our consolidated results of operations as if our acquisitions for the years ended December 31, 2017 and 2016 were acquired on January 1, 2016 . The unaudited consolidated pro forma results of operations is not necessarily indicative of what the actual results of operations would have been, assuming the transactions had been completed as set forth above, nor do they purport to represent our results of operations for future periods. Year Ended December 31, (in thousands, except per share data) 2017 2016 Total property revenues $ 133,663 $ 129,385 Net income $ 11,322 $ 16,963 Net income attributable to Whitestone REIT (1) $ 10,990 $ 16,583 Basic Earnings Per Share: $ 0.28 $ 0.45 Diluted Earnings Per Share: $ 0.27 $ 0.44 Weighted-average common shares outstanding: Basic (2) 37,933 35,637 Diluted (2) 38,760 36,402 (1) Net income attributable to Whitestone REIT reflects historical ownership percentages and does not reflect the effects of the April 2017 Offering (as defined in Note 14), assuming the sale of the common shares took place on January 1, 2016 , as the related impact on ownership percentage is minimal. (2) Pro forma weighted averages reflect the April 2017 Offering, assuming the sale of the common shares took place on January 1, 2016 . Acquisition costs. Acquisition-related costs of $0.0 million , $1.6 million and $2.1 million are included in general and administrative expenses in our income statements for the years ended December 31, 2018 , 2017 and 2016 , respectively. Development properties. As of December 31, 2018 , we had substantially completed construction at our Pinnacle of Scottsdale Phase II property. As of December 31, 2018 , we had incurred approximately $5.5 million in construction costs, including approximately $0.6 million in previously capitalized interest and real estate taxes. The 27,063 square foot Community Centered Property ® was 100% leased at year end and is located in Scottsdale, Arizona, and adjacent to Pinnacle of Scottsdale. As of December 31, 2018 , we had substantially completed construction at our Shops at Starwood Phase III property. As of December 31, 2018 , we had incurred approximately $8.4 million in construction costs, including approximately $1.1 million in previously capitalized interest and real estate taxes. The 35,351 square foot Community Centered Property ® was 72% leased at year end and is located in Frisco, Texas, a northern suburb of Dallas, Texas, and adjacent to Shops at Starwood. Property dispositions. On September 24, 2018, we completed the sale of Torrey Square, located in Houston, Texas, for $8.7 million . We recorded a gain on sale of $4.4 million . We have not included Torrey Square in discontinued operations as it did not meet the definition of discontinued operations. On February 27, 2018, we completed the sale of Bellnott Square, located in Houston, Texas, for $4.7 million . We recorded a gain on sale of $0.3 million . We have not included Bellnott Square in discontinued operations as it did not meet the definition of discontinued operations. On November 29, 2016, we completed the sale of Centre South and Webster Pointe, located in Houston, Texas, for $4.9 million . This disposition was pursuant to our strategy of recycling capital by disposing of Non-Core Properties, primarily properties that we owned at the time our current management team assumed the management of the Company, that do not fit our Community Centered Property ® strategy. As part of the transaction, we provided short-term seller financing of $1.7 million . We recorded a gain on sale of $2.2 million , including recognizing a $0.5 million gain on sale for the year ended December 31, 2016 and are deferring the remaining $1.7 million gain on sale to be recognized upon receipt of principal payments on the financing provided by us. We have not included Centre South and Webster Pointe in discontinued operations as the sale did not meet the definition of discontinued operations. On March 3, 2016, we completed the sale of Brookhill, located in Houston, Texas, for $3.1 million . This disposition was pursuant to our strategy of recycling capital by disposing of Non-Core Properties, primarily properties that we owned at the time our current management team assumed the management of the Company, that do not fit our Community Centered Property ® strategy. We recorded a gain on sale of $1.9 million . The sale was structured as a like-kind exchange within the meaning of Section 1031 of the Code and sales proceeds were deposited into a Section 1031 exchange escrow account with a qualified intermediary and subsequently distributed for general corporate purposes. We have not included Brookhill in discontinued operations as it did not meet the definition of discontinued operations. On February 17, 2016, we completed the sale of approximately 0.5 acres of our 4.5 acre Pinnacle Phase II development parcel, located in Scottsdale, Arizona, for $1.1 million . We recorded a gain on sale of $1.0 million . Hurricane Harvey. In August 2017, Hurricane Harvey impacted the South Texas region, including Houston, Texas. The majority of our Houston properties incurred minor damage and as a result, we recorded approximately $0.5 million in Harvey related repairs recorded in property operation and maintenance expense for the year ended December 31, 2017.

Investment in Real Estate Partn

Investment in Real Estate Partnership	12 Months Ended
	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investment in Real Estate Partnership	INVESTMENT IN REAL ESTATE PARTNERSHIP On December 8, 2016, we, through our Operating Partnership, entered into a Contribution Agreement (the “Contribution Agreement”) with Pillarstone OP and Pillarstone Capital REIT (“Pillarstone REIT”) pursuant to which we contributed all of the equity interests in four of our wholly-owned subsidiaries: Whitestone CP Woodland Ph. 2, LLC, a Delaware limited liability company (“CP Woodland”); Whitestone Industrial-Office, LLC, a Texas limited liability company (“Industrial-Office”); Whitestone Offices, LLC, a Texas limited liability company (“Whitestone Offices”); and Whitestone Uptown Tower, LLC, a Delaware limited liability company (“Uptown Tower,” and together with CP Woodland, Industrial-Office and Whitestone Offices, the “Entities”) that own 14 non-core properties that do not fit our Community Centered Property ® strategy (the “Pillarstone Properties”), to Pillarstone OP for aggregate consideration of approximately $84 million , consisting of (1) approximately $18.1 million of Class A units representing limited partnership interests in Pillarstone OP (“Pillarstone OP Units”), issued at a price of $1.331 per Pillarstone OP Unit; and (2) the assumption of approximately $65.9 million of liabilities, consisting of (a) approximately $15.5 million of our liability under the 2018 Facility (as defined in Note 9); (b) an approximately $16.3 million promissory note of Uptown Tower under the Loan Agreement, dated as of September 26, 2013, between Uptown Tower, as borrower, and U.S. Bank, National Association, as successor to Morgan Stanley Mortgage Capital Holdings LLC, as lender; and (c) an approximately $34.1 million promissory note (the “Industrial-Office Promissory Note”) of Industrial-Office issued under the Loan Agreement, dated as of November 26, 2013 (the “Industrial-Office Loan Agreement”), between Industrial-Office, as borrower, and Jackson National Life Insurance Company, as lender (collectively, the “Contribution”). In connection with the Contribution, on December 8, 2016, the Operating Partnership entered into an OP Unit Purchase Agreement (the “OP Unit Purchase Agreement”) with Pillarstone REIT and Pillarstone OP pursuant to which the Operating Partnership agreed to purchase up to an aggregate of $3.0 million of Pillarstone OP Units at a price of $1.331 per Pillarstone OP Unit over the two -year term of the OP Unit Purchase Agreement on the terms set forth therein. The OP Unit Purchase Agreement contains customary closing conditions and the parties have made certain customary representations, warranties and indemnifications to each other in the OP Unit Purchase Agreement. In addition, pursuant to the OP Unit Purchase Agreement, in the event of a Change of Control (as defined therein) of the Company, Pillarstone OP shall have the right, but not the obligation, to repurchase the Pillarstone OP Units issued thereunder from the Operating Partnership at their initial issue price of $1.331 per Pillarstone OP Unit. In connection with the Contribution, (1) with respect to each Pillarstone Property (other than Uptown Tower), Whitestone TRS, Inc., a subsidiary of the Company (“Whitestone TRS”), entered into a Management Agreement with the Entity that owns such Pillarstone Property and (2) with respect to Uptown Tower, Whitestone TRS entered into a Management Agreement with Pillarstone OP (collectively, the “Management Agreements”). Pursuant to the Management Agreements with respect to each Pillarstone Property (other than Uptown Tower), Whitestone TRS agreed to provide certain property management, leasing and day-to-day advisory and administrative services to such Pillarstone Property in exchange for (x) a monthly property management fee equal to 5.0% of the monthly revenues of such Pillarstone Property and (y) a monthly asset management fee equal to 0.125% of GAV (as defined in each Management Agreement as, generally, the purchase price of the respective Pillarstone Property based upon the purchase price allocations determined pursuant to the Contribution Agreement, excluding all indebtedness, liabilities or claims of any nature) of such Pillarstone Property. Pursuant to the Management Agreement with respect to Uptown Tower, Whitestone TRS agreed to provide certain property management, leasing and day-to-day advisory and administrative services to Pillarstone OP in exchange for (x) a monthly property management fee equal to 3.0% of the monthly revenues of Uptown Tower and (y) a monthly asset management fee equal to 0.125% of GAV of Uptown Tower. The initial term of each Management Agreement expired on December 31, 2017, after which each Management Agreement became automatically renewable on a month to month basis; provided that each Management Agreement can be terminated by either party thereto upon not less than thirty days’ prior written notice to the other party. None of the Management Agreements had been terminated as of December 31, 2018 . In connection with the Contribution, on December 8, 2016, the Operating Partnership entered into a Tax Protection Agreement with Pillarstone REIT and Pillarstone OP pursuant to which Pillarstone OP agreed to indemnify the Operating Partnership for certain tax liabilities resulting from its recognition of income or gain prior to December 8, 2021 if such liabilities result from a transaction involving a direct or indirect taxable disposition of all or a portion of the Pillarstone Properties or if Pillarstone OP fails to maintain and allocate to the Operating Partnership for taxation purposes minimum levels of liabilities as specified in the Tax Protection Agreement, the result of which causes such recognition of income or gain and the Company incurs taxes that must be paid to maintain its REIT status for federal income tax purposes. As of December 31, 2018 , we owned approximately 81.4% of the total outstanding units of Pillarstone OP. Additionally, certain of our officers and trustees serve as officers and trustees of Pillarstone REIT. In connection with the Contribution, in December 2016, we determined that we were the primary beneficiary of Pillarstone OP, through our power to direct the activities of Pillarstone OP, additional working capital required by Pillarstone OP under the OP Unit Purchase Agreement and our obligation to absorb losses and receive benefits based on our ownership percentage. Accordingly, we accounted for Pillarstone OP as a VIE and fully consolidated it in our consolidated financial statements for the year ended December 31, 2016 and in the subsequent periods. In November 2017, we received a comment letter from the Staff of the Division of Corporation Finance of the SEC (the “Staff”) relating to our Annual Report on Form 10-K for the year ended December 31, 2016. In their letter, the Staff requested that we provide them with an analysis to support our determination that Pillarstone OP is a VIE of which we are the primary beneficiary and that Pillarstone OP should be consolidated in our financial statements in accordance with GAAP. In response to the Staff’s comment, we provided the Staff with our analysis of our accounting and financial reporting obligations relating to our interest in Pillarstone OP. After communicating our analysis and conclusions to the Staff and responding to additional questions from the Staff relating to this matter, the Staff did not object to or otherwise take exception to our initial determinations at the time of the consummation of the Contribution in December 2016 but provided a verbal reminder that the determination of the primary beneficiary of a VIE should be continually reassessed, noting that the initial terms of the Management Agreements expired in December 2017, and suggesting that we consider pre-clearing future accounting treatment of Pillarstone OP with the Staff of the Office of the Chief Accountant (“OCA”). In connection with the preparation and review of the Company’s financial statements for the quarter ended March 31, 2018, the Company concluded, after consultation with the Company’s outside advisors, that it would be prudent to seek the pre-clearance from the Staff of the SEC’s Office of the Chief Accountant (“OCA”) of the proposed treatment of Pillarstone OP in the Company’s financial statements for such quarter. Accordingly, in April 2018, the Company submitted a letter to the OCA seeking their concurrence with the Company’s determinations that it maintained its status as the primary beneficiary of Pillarstone OP and, accordingly, should continue to consolidate Pillarstone OP in its financial statements for the quarter ended March 31, 2018 in accordance with GAAP. After further correspondence, including telephonic meetings between the Company, its advisors and the OCA, the OCA informed the Company that it objected to the conclusions that the Company was the primary beneficiary of Pillarstone OP and was required to consolidate it in the Company’s financial statements since the Contribution in December 2016 and during the subsequent periods. After consideration of the OCA’s objection to the Company’s original accounting, the Company determined that the correct accounting treatment was to apply certain industry specific accounting guidance applicable to real estate transactions, ASC 360-20, the profit sharing method, which required the Company to continue to recognize the underlying assets and liabilities associated with the Contribution in the Company’s financial statements, and revised its accounting treatment accordingly. Management evaluated the quantitative and qualitative materiality of the errors and concluded that the difference between applying ASC 360-20 and the consolidation of Pillarstone OP under the VIE guidance was not material to the financial statements of any period presented through December 31, 2017. As a result, the company elected to correct them in future financial statements, beginning with the consolidated financial statements as and for the period ended June 30, 2018 and in the accompanying prior period consolidated financial statements included in the Company’s Quarterly Report on Form 10-Q for the period ended June 30, 2018. On January 1, 2018, the Company adopted ASU 2014-09 (“Topic 606”), as subsequently amended, using the modified retrospective method and applied Topic 606 to those contracts that were not completed as of January 1, 2018. Topic 606 added a new section, ASC 610, “ Other Income-Gains and Losses from the Derecognition of Nonfinancial Assets ,” which effectively superseded industry specific accounting guidance applicable to real estate transactions. The Company considered the applicability of the new accounting requirements to the Contribution and concluded that, in the judgment of management, the transfer of control criteria requirement in Topic 606 had not been met and continued to recognize the assets and liabilities associated with the Contribution in the Company’s financial statements subsequent the adoption of Topic 606. In August 2018, the Company received a comment letter from the Staff relating to its Quarterly Report on Form 10-Q for the period ended June 30, 2018. The Staff requested that the Company provide them with an analysis of the Company’s determination that the Contribution did not meet the requirements for derecognition of the underlying assets under Topic 606 and ASC 610, and an explanation of the Company’s consideration of the immaterial accounting errors related to Pillarstone OP in its conclusion that disclosure controls and procedures and internal controls over financial reporting were effective as of June 30, 2018 and December 31, 2017. In September 2018, the Company responded to the Staff’s letter with the requested analysis and explanation. In October 2018, the Company received a comment letter from the Staff with certain follow up questions. Subsequently, the Company engaged in verbal discussions with the Staff regarding its responses, and in February 2019, the Staff verbally informed the Company that it objected to management’s conclusion regarding the assessment of the transfer of control criteria in Topic 606 with respect to the Contribution and objected to the Company’s continued recognition of the underlying assets and liabilities associated with the Contribution subsequent to January 1, 2018, the adoption date of Topic 606 and ASC 610. On February 26, 2019, the Audit Committee of the Board of Trustees of Whitestone REIT, after consultation with members of senior management of the Company, concluded that the Company’s unaudited consolidated financial statements as of and for the periods ended March 31, 2018, June 30, 2018 and September 30, 2018 included in the Company’s Quarterly Reports on Form 10-Q for the quarterly periods ended March 31, 2018, June 30, 2018 and September 30, 2018, respectively, should be restated to correct the accounting error described in Note 19. Because this change from the profit sharing method is only applicable for periods ending after giving effect to the implementation of Topic 606 and ASC 610, no periods prior to January 1, 2018 are affected by this error. As a result of the adoption of Topic 606 and ASC 610, the Company derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and recognized the Company’s investment in Pillarstone OP under the equity method for the year ended December 31, 2018. The table below presents the real estate partnership investment in which the Company held an ownership interest (in thousands): The Company’s Investment as of December 31, 2018 Real estate partnership Ownership Interest Pillarstone OP (1)(2) 81.4% $ 26,236 Total real estate partnership (3) 26,236 (1) The Company manages these real estate partnership investments and, where applicable, earns acquisition fees, leasing commissions, property management fees, and asset management fees. (2) As of December 31, 2017 , the Company had a net deferred gain of $18.0 million relating to the sale of properties to Pillarstone OP prior to the adoption of ASU 2017-05. These deferred gains were included in the Company’s investment above. Upon adoption, the Company recorded a cumulative-effect adjustment of $19.1 million to its beginning accumulated deficit as of January 1, 2018 on the Company’s Consolidated Statements of Changes in Equity. (3) Representing 11 property interests and 1.3 million square feet of GLA, as of December 31, 2018 , and 14 property interests and 1.5 million square feet of GLA, as of December 31, 2017 . On December 27, 2018, Pillarstone OP, through an indirect wholly owned subsidiary, Whitestone Industrial-Office, LLC, sold a portfolio of three properties in Houston, Texas to an unaffiliated third party for $15.8 million in cash. Pillarstone OP used the net proceeds, after customary closing deductions, to pay off mortgage debt on the three properties, and repay $8.0 million of its $14.5 million loan from Whitestone. Included in 2018 equity in earnings from real estate partnership is a $6.3 million gain related to this sale. The table below presents the Company’s share of net income from its investment in the real estate partnership which is included in equity in earnings of real estate partnership, net on the Company’s Consolidated Statements of Operations and Comprehensive Income (in thousands): Year Ended December 31, 2018 Pillarstone OP $ 8,431 Summarized financial information for the Company’s investment in real estate partnership is as follows (in thousands): December 31, 2018 Assets: Real estate, net $ 72,661 Other assets 6,617 Total assets 79,278 Liabilities and equity: Notes payable 47,064 Other liabilities 4,322 Equity 27,892 Total liabilities and equity 79,278 Company’s share of equity 22,717 Cost of investment in excess (deficit) of the Company’s share of underlying net book value 3,519 Carrying value of investment in real estate partnership $ 26,236 Year Ended December 31, 2018 Property revenues $ 17,180 Property expenses (6,687 ) Other expenses (7,848 ) Gain on sale of properties 7,839 Net income $ 10,484 The amortization of the basis difference between the cost of investment and the Company's share of underling net book value for the years ended December 31, 2018 is $108,000 . The Company amortized the difference into equity in earnings of real estate partnership on the consolidated statements of operations and comprehensive income statement. As a result of the adoption of Topic 606 and ASC 610, the Company recognized the Company’s investment in Pillarstone OP under the equity method for the year ended December 31, 2018. For the year ended December 31, 2017, Pillarstone OP was accounted for using the profit-sharing method. The carrying amounts and classification of certain assets and liabilities for Pillarstone OP under the profit sharing method as of December 31, 2017 and consisted of the following (in thousands): Real estate assets, at cost Property $ 95,146 Accumulated depreciation (35,980 ) Total real estate assets 59,166 Investment in real estate partnership 4,095 Liabilities Notes payable (1) (48,840 ) Net carrying value $ 14,421 (1) Excludes approximately $15.5 million in notes payable due to Whitestone as of December 31, 2017 . The Company's maximum exposure to loss relating to Pillarstone OP is limited to its investment in Pillarstone OP and its guarantee of promissory notes issued to Pillarstone OP. Since the date of the Contribution, the Company has not provided financial support to Pillarstone OP that it was not previously contractually required to provide under the Management Agreements or OP Unit Purchase Agreement. The Company's maximum exposure to loss relating to Pillarstone OP as of December 31, 2017 is as follows (in thousands): Net carrying value $ 14,421 OP Unit Purchase Agreement 3,000 Notes payable 48,840 Maximum exposure to loss $ 66,261 The Company has evaluated its guarantee to Pillarstone OP pursuant to ASC 460, Guarantees , and has determined the guarantee to be a performance guarantee, for which ASC 460 contains initial recognition and measurement requirements, and related disclosure requirements. The Company is obligated in two respects: (i) a noncontingent liability, which represents the Company’s obligation to stand ready to perform under the terms of the guarantee in the event that the specified triggering event(s) occur; and (ii) the contingent liability, which represents the Company’s obligation to make future payments if those triggering events occur. The Company recognized a noncontingent liability of $462,000 at the inception of the guarantee at fair value and is recorded on the the Company’s consolidated balance sheet as a liability. The Company amortizes the guarantee liability into income over seven years . For the years ended December 31, 2018 and December 31, 2017, the amortization of the guarantee liability was $106,000 and $112,000 , respectively.

Accrued Rents and Accounts Rece

Accrued Rents and Accounts Receivable, Net	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
ACCRUED RENTS AND ACCOUNTS RECEIVABLE, NET	ACCRUED RENTS AND ACCOUNTS RECEIVABLE, NET Accrued rents and accounts receivable, net, consists of amounts accrued, billed and due from tenants, allowance for doubtful accounts and other receivables as follows (in thousands): December 31, 2018 2017 Tenant receivables $ 14,686 $ 14,128 Accrued rents and other recoveries 16,423 15,620 Allowance for doubtful accounts (9,746 ) (8,608 ) Other receivables 279 — Totals $ 21,642 $ 21,140

Unamortized Lease Commissions a

Unamortized Lease Commissions and Loan Costs	12 Months Ended
	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
UNAMORTIZED LEASING COMMISSIONS AND LOAN COSTS	UNAMORTIZED LEASE COMMISSIONS AND LOAN COSTS Costs which have been deferred consist of the following (in thousands): December 31, 2018 2017 Leasing commissions $ 8,789 $ 7,861 Deferred legal cost 406 386 Deferred financing cost 4,076 4,071 Total cost 13,271 12,318 Less: leasing commissions accumulated amortization (3,534 ) (3,046 ) Less: deferred legal cost accumulated amortization (125 ) (52 ) Less: deferred financing cost accumulated amortization (2,914 ) (2,063 ) Total cost, net of accumulated amortization $ 6,698 $ 7,157 A summary of expected future amortization of deferred costs is as follows (in thousands): Years Ended December 31, Leasing Commissions Deferred Legal Costs (1) Deferred Financing Costs Total 2019 $ 1,193 $ 281 $ 224 $ 1,698 2020 1,038 — 199 1,237 2021 869 — 187 1,056 2022 681 — 187 868 2023 489 — 168 657 Thereafter 985 — 197 1,182 Total $ 5,255 $ 281 $ 1,162 $ 6,698 (1) The Company will recognize a cumulative-effect adjustment to the opening balance of retained earnings of $281,000 in deferred legal costs in 2019 from the modified retrospective adoption of ASC 842.

Future Minimum Lease Income

Future Minimum Lease Income	12 Months Ended
	Dec. 31, 2018
Leases [Abstract]
FUTURE MINIMUM LEASE INCOME	FUTURE MINIMUM LEASE INCOME We lease the majority of our properties under noncancelable operating leases, which provide for minimum base rents plus, in some instances, contingent rents based upon a percentage of the tenants’ gross receipts. A summary of minimum future rents to be received (exclusive of renewals, tenant reimbursements, and contingent rents) under noncancelable operating leases in existence as of December 31, 2018 is as follows (in thousands): Years Ended December 31, Minimum Future Rents 2019 $ 81,149 2020 70,181 2021 59,550 2022 48,431 2023 37,327 Thereafter 122,102 Total $ 418,740

Debt

Debt	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
DEBT	DEBT Mortgages and other notes payable consist of the following (in thousands): December 31, Description 2018 2017 Fixed rate notes $10.5 million, LIBOR plus 2.00% Note, due September 24, 2020 (1) $ 9,500 $ 9,740 $50.0 million, 1.75% plus 1.35% to 1.90% Note, due October 30, 2020 (2) 50,000 50,000 $50.0 million, 1.50% plus 1.35% to 1.90% Note, due January 29, 2021 (3) 50,000 50,000 $100.0 million, 1.73% plus 1.65% to 2.25% Note, due October 30, 2022 (4) 100,000 100,000 $80.0 million, 3.72% Note, due June 1, 2027 80,000 80,000 $37.0 million 3.76% Note, due December 1, 2020 (5) — 33,148 $6.5 million 3.80% Note, due January 1, 2019 5,657 5,842 $19.0 million 4.15% Note, due December 1, 2024 19,000 19,000 $20.2 million 4.28% Note, due June 6, 2023 18,996 19,360 $14.0 million 4.34% Note, due September 11, 2024 13,718 13,944 $14.3 million 4.34% Note, due September 11, 2024 14,300 14,300 $16.5 million 4.97% Note, due September 26, 2023 (5) — 16,058 $15.1 million 4.99% Note, due January 6, 2024 14,643 14,865 $2.6 million 5.46% Note, due October 1, 2023 2,430 2,472 Floating rate notes Unsecured line of credit, LIBOR plus 1.40% to 1.95%, due October 30, 2019 (6) 241,200 232,200 Total notes payable principal 619,444 660,929 Less deferred financing costs, net of accumulated amortization (1,239 ) (1,861 ) $ 618,205 $ 659,068 (1) Promissory note includes an interest rate swap that fixed the interest rate at 3.55% for the duration of the term through September 24, 2018 and 4.85% beginning September 24, 2018 through September 24, 2020. (2) Promissory note includes an interest rate swap that fixed the LIBOR portion of Term Loan 1 (as defined below) at 0.84% through February 3, 2017 and 1.75% beginning February 3, 2017 through October 30, 2020. (3) Promissory note includes an interest rate swap that fixed the LIBOR portion of Term Loan 2 (as defined below) at 1.50% . (4) Promissory note includes an interest rate swap that fixed the LIBOR portion of Term Loan 3 (as defined below) at 1.73% . (5) Promissory notes were assumed by Pillarstone OP in December 2016 and included in our consolidated balance sheet under the profit-sharing method of accounting through December 31, 2017, as discussed in Note 5. (6) Unsecured line of credit includes certain Pillarstone Properties (as defined and described in more detail below) in determining the amount of credit available under the 2018 Facility (as defined and described in more detail below). On May 26, 2017, we, through our subsidiary, Whitestone BLVD Place LLC, a Delaware limited liability company, issued a $80.0 million promissory note to American General Life Insurance Company (the “BLVD Note”). The BLVD Note has a fixed interest rate of 3.72% and a maturity date of June 1, 2027. Proceeds from the BLVD Note were used to fund a portion of the purchase price of the acquisition of BLVD Place (See Note 4). On November 7, 2014, we, through our Operating Partnership, entered into an unsecured revolving credit facility (the “2014 Facility”) with the lenders party thereto, with BMO Capital Markets Corp., Wells Fargo Securities, LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated and U.S. Bank, National Association, as co-lead arrangers and joint book runners, and Bank of Montreal, as administrative agent (the “Agent”). The 2014 Facility amended and restated our previous unsecured revolving credit facility. On October 30, 2015, we, through our Operating Partnership, entered into the First Amendment to the 2014 Facility (the “First Amendment”) with the guarantors party thereto, the lenders party thereto and the Agent. We refer to the 2014 Facility, as amended by the First Amendment, as the “2018 Facility.” Pursuant to the First Amendment, the Company made the following amendments to the 2014 Facility: • extended the maturity date of the $300 million unsecured revolving credit facility under the 2014 Facility (the “Revolver”) to October 30, 2019 from November 7, 2018; • converted $100 million of outstanding borrowings under the Revolver to a new $100 million unsecured term loan under the 2014 Facility (“Term Loan 3”) with a maturity date of October 30, 2022; • extended the maturity date of the first $50 million unsecured term loan under the 2014 Facility (“Term Loan 1”) to October 30, 2020 from February 17, 2017; and • extended the maturity date of the second $50 million unsecured term loan under the 2014 Facility (“Term Loan 2” and together with Term Loan 1 and Term Loan 3, the “Term Loans”) to January 29, 2021 from November 7, 2019. Borrowings under the 2018 Facility accrue interest (at the Operating Partnership's option) at a Base Rate or an Adjusted LIBOR plus an applicable margin based upon our then existing leverage. As of December 31, 2018 , the interest rate was 4.28% . The applicable margin for Adjusted LIBOR borrowings ranges from 1.40% to 1.95% for the Revolver and 1.35% to 2.25% for the Term Loans. Base Rate means the higher of: (a) the Agent’s prime commercial rate, (b) the sum of (i) the average rate quoted by the Agent by two or more federal funds brokers selected by the Agent for sale to the Agent at face value of federal funds in the secondary market in an amount equal or comparable to the principal amount for which such rate is being determined, plus (ii) 1/2 of 1.00% , and (c) the LIBOR rate for such day plus 1.00% . Adjusted LIBOR means LIBOR divided by one minus the Eurodollar Reserve Percentage. The Eurodollar Reserve Percentage means the maximum reserve percentage at which reserves are imposed by the Board of Governors of the Federal Reserve System on eurocurrency liabilities. We serve as the guarantor for funds borrowed by the Operating Partnership under the 2018 Facility. The 2018 Facility contains customary terms and conditions, including, without limitation, affirmative and negative covenants such as information reporting requirements, maximum secured indebtedness to total asset value, minimum EBITDA (earnings before interest, taxes, depreciation, amortization or extraordinary items) to fixed charges, and maintenance of a minimum net worth. The 2018 Facility also contains customary events of default with customary notice and cure, including, without limitation, nonpayment, breach of covenant, misrepresentation of representations and warranties in a material respect, cross-default to other major indebtedness, change of control, bankruptcy and loss of REIT tax status. The 2018 Facility includes an accordion feature that will allow the Operating Partnership to increase the borrowing capacity to $700 million , upon the satisfaction of certain conditions. As of December 31, 2018 , $441.2 million was drawn on the 2018 Facility and our unused borrowing capacity was $58.8 million , assuming that we use the proceeds of the 2018 Facility to acquire properties, or to repay debt on properties, that are eligible to be included in the unsecured borrowing base. Proceeds from the 2018 Facility were used for general corporate purposes, including property acquisitions, debt repayment, capital expenditures, the expansion, redevelopment and re-tenanting of properties in our portfolio and working capital. We intend to use the additional proceeds from the 2018 Facility for general corporate purposes, including property acquisitions, debt repayment, capital expenditure, the expansion, redevelopment and re-tenanting of properties in our portfolio and working capital. On December 8, 2016, in connection with the Contribution, the Operating Partnership entered into the Second Amendment to the 2018 Facility and Reaffirmation of Guaranties (the “Second Amendment”) with Pillarstone OP, the Company and the other Guarantors party thereto, the lenders party thereto and the Agent. Pursuant to the Second Amendment, following the Contribution, Whitestone Offices, LLC and Whitestone CP Woodland Ph. 2, LLC were permitted to remain Material Subsidiaries (as defined in the 2018 Facility) and Guarantors under the 2018 Facility and their respective Pillarstone Properties were each permitted to remain an Eligible Property (as defined in the 2018 Facility) and be included in the Borrowing Base (as defined in the 2018 Facility) under the 2018 Facility. In addition, on December 8, 2016, Pillarstone OP entered into the Limited Guarantee (the “Limited Guarantee”) with the Agent, pursuant to which Pillarstone OP agreed to be joined as a party to the 2018 Facility to provide a limited guarantee up to the amount of availability generated by the Pillarstone Properties owned by Whitestone Offices, LLC and Whitestone CP Woodland Ph. 2, LLC. As of December 31, 2018 , Pillarstone accounted for approximately $5.7 million of the total amount drawn on the 2018 Facility. As of December 31, 2018 , our $178.2 million in secured debt was collateralized by 9 properties with a carrying value of $279.1 million . Our loans contain restrictions that would require the payment of prepayment penalties for the acceleration of outstanding debt and are secured by deeds of trust on certain of our properties and by assignment of the rents and leases associated with those properties. In 2018, we were not in compliance with respect to the tangible Net Worth covenant as defined in the 2018 Facility and had received two waivers as of December 31, 2018 . Had we been unable to obtain a waiver or other suitable relief from the lenders under the 2018 Facility, an Event of Default (as defined in the 2018 Facility) would have occurred, permitting the lenders holding a majority of the commitments under the 2018 Facility to, among other things, accelerate the outstanding indebtedness, which would make it immediately due and payable. As referred to in Note 20, the 2019 Facility contains a similar tangible Net Worth covenant that resets at a new threshold and changes the definition of Net Worth to add back accumulated depreciation. However, we can make no assurances that we will be in compliance with this covenant or other covenants under the 2019 Facility in future periods or, if we are not in compliance, that we will be able to obtain a waiver. Scheduled maturities of our outstanding debt as of December 31, 2018 were as follows (in thousands): Amount Due Year (in thousands) 2019 $ 248,199 2020 60,801 2021 51,611 2022 101,683 2023 20,720 Thereafter 136,430 Total $ 619,444 Contractual Obligations As of December 31, 2018 , we had the following contractual obligations: Payment due by period (in thousands) Consolidated Contractual Obligations Total Less than 1 1 - 3 years 3 - 5 years More than Long-Term Debt - Principal $ 619,444 $ 248,199 $ 112,412 $ 122,403 $ 136,430 Long-Term Debt - Fixed Interest 60,492 13,131 22,772 12,689 11,900 Long-Term Debt - Variable Interest (1) 6,633 6,633 — — — Unsecured credit facility - Unused commitment fee (2) 98 98 — — — Operating Lease Obligations 185 85 100 — — Related Party Rent Lease Obligations 963 441 522 — — Total $ 687,815 $ 268,587 $ 135,806 $ 135,092 $ 148,330 (1) As of December 31, 2018 , we had one loan totaling $241.2 million which bore interest at a floating rate. The variable interest rate payments are based on LIBOR plus 1.40% to LIBOR plus 1.95% , which reflects our new interest rates under the 2018 Facility. The information in the table above reflects our projected interest rate obligations for the floating rate payments based on one-month LIBOR as of December 31, 2018 , of 2.35% . (2) The unused commitment fees on the 2018 Facility, payable quarterly, are based on the average daily unused amount of the 2018 Facility. The fees are 0.20% for facility usage greater than 50% or 0.25% for facility usage less than 50% . The information in the table above reflects our projected obligations for the 2018 Facility based on our December 31, 2018 balance of $441.2 million .

Derivatives and Hedging Activit

Derivatives and Hedging Activities (Notes)	12 Months Ended
	Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES AND HEDGING ACTIVITIES	DERIVATIVES AND HEDGING ACTIVITIES The fair value of our interest rate swaps is as follows (in thousands): December 31, 2018 Balance Sheet Location Estimated Fair Value Prepaid expenses and other assets $ 4,286 Accounts payable and accrued expenses $ (59 ) December 31, 2017 Balance Sheet Location Estimated Fair Value Prepaid expenses and other assets $ 3,036 On September 5, 2018, we, through our Operating Partnership, entered into an interest rate swap with Bank of America that fixed the LIBOR portion of the $9.6 million extension loan on the Whitestone Terravita Marketplace property at 2.85% . The swap began on September 24, 2018 and will mature on September 24, 2020. We have designated the interest rate swap as a cash flow hedge with the effective portion of the changes in fair value to be recorded in comprehensive income and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. The ineffective portion of the change in fair value, if any, will be recognized directly in earnings. The Company does not expect any amount of the existing gains or losses to be reclassified into earnings within the next 12 months. On November 19, 2015, we, through our Operating Partnership, entered into an interest rate swap with Bank of Montreal that fixed the LIBOR portion of Term Loan 3 under the 2018 Facility at 1.73% . In the fourth quarter of 2015, pursuant to the terms of the agreement governing the interest rate swap, Bank of Montreal assigned $35.0 million of the swap to U.S. Bank, National Association, and $15.0 million of the swap to SunTrust Bank. See Note 9 for additional information regarding the 2018 Facility. The swap began on November 30, 2015 and will mature on October 28, 2022. We have designated the interest rate swap as a cash flow hedge with the effective portion of the changes in fair value to be recorded in comprehensive income and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. The ineffective portion of the change in fair value, if any, will be recognized directly in earnings. The Company does not expect any amount of the existing gains or losses to be reclassified into earnings within the next 12 months. On November 19, 2015, we, through our Operating Partnership, entered into an interest rate swap with Bank of Montreal that fixed the LIBOR portion of Term Loan 1 under the 2018 Facility at 1.75% . In the fourth quarter of 2015, pursuant to the terms of the agreement governing the interest rate swap, Bank of Montreal assigned $3.8 million of the swap to Regions Bank, $6.5 million of the swap to U.S. Bank, National Association, $14.0 million of the swap to Wells Fargo Bank, National Association, $14.0 million of the swap to Bank of America, N.A., and $5.0 million of the swap to SunTrust Bank. See Note 9 for additional information regarding the 2018 Facility. The swap began on February 3, 2017 and will mature on October 30, 2020. We have designated the interest rate swap as a cash flow hedge with the effective portion of the changes in fair value to be recorded in comprehensive income and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. The ineffective portion of the change in fair value, if any, will be recognized directly in earnings. The Company does not expect any amount of the existing gains or losses to be reclassified into earnings within the next 12 months. On November 19, 2015, we, through our Operating Partnership, entered into an interest rate swap with Bank of Montreal that fixed the LIBOR portion of Term Loan 2 under the 2018 Facility at 1.50% . In the fourth quarter of 2015, pursuant to the terms of the agreement governing the interest rate swap, Bank of Montreal assigned $3.8 million of the swap to Regions Bank, $6.5 million of the swap to U.S. Bank, National Association, $14.0 million of the swap to Wells Fargo Bank, National Association, $14.0 million of the swap to Bank of America, N.A., and $5.0 million of the swap to SunTrust Bank. See Note 9 for additional information regarding the 2018 Facility. The swap began on December 7, 2015 and will mature on January 29, 2021. We have designated the interest rate swap as a cash flow hedge with the effective portion of the changes in fair value to be recorded in comprehensive income and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. The ineffective portion of the change in fair value, if any, will be recognized directly in earnings. The Company does not expect any amount of the existing gains or losses to be reclassified into earnings within the next 12 months. A summary of our interest rate swap activity is as follows (in thousands): Amount Recognized as Comprehensive Income Location of Loss Recognized in Earnings Amount of Loss Recognized in Earnings (1) Year ended December 31, 2018 $ 1,192 Interest expense $ 646 Year ended December 31, 2017 $ 2,022 Interest expense $ (1,575 ) Year ended December 31, 2016 $ 929 Interest expense $ (2,385 ) (1) Amounts represent the effective portions of our interest rate swaps. We did not recognize any ineffective portion of our interest rate swaps in earnings for the years ended December 31, 2018 , 2017 and 2016 .

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE Basic earnings per share for our common shareholders is calculated by dividing income from continuing operations excluding amounts attributable to unvested restricted shares and the net income attributable to non-controlling interests by our weighted-average common shares outstanding during the period. Diluted earnings per share is computed by dividing the net income attributable to common shareholders excluding amounts attributable to unvested restricted shares and the net income attributable to non-controlling interests by the weighted-average number of common shares including any dilutive unvested restricted shares. Certain of our performance-based restricted common shares are considered participating securities, which require the use of the two-class method for the computation of basic and diluted earnings per share. During the years ended December 31, 2018 , 2017 and 2016 , 1,011,268 , 1,088,292 and 642,132 OP units, respectively, were excluded from the calculation of diluted earnings per share because their effect would be anti-dilutive. For the years ended December 31, 2018 , 2017 and 2016 , distributions of $317,000 , $472,000 and $636,000 , respectively, were made to the holders of certain restricted common shares, $16,000 of which were charged against earnings, annually. See Note 15 for information related to restricted common shares under the 2008 Plan. Year Ended December 31, (in thousands, except per share data) 2018 2017 2016 Numerator: Net income $ 21,981 $ 8,588 $ 8,113 Less: Net income attributable to noncontrolling interests (550 ) (254 ) (182 ) Distributions paid on unvested restricted shares (301 ) (456 ) (620 ) Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares $ 21,130 $ 7,878 $ 7,311 Denominator: Weighted average number of common shares - basic 39,274 35,428 27,618 Effect of dilutive securities: Unvested restricted shares 1,338 827 765 Weighted average number of common shares - dilutive 40,612 36,255 28,383 Earnings Per Share: Basic: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares $ 0.54 $ 0.22 $ 0.26 Diluted: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares $ 0.52 $ 0.22 $ 0.26

Federal Income Taxes

Federal Income Taxes	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
FEDERAL INCOME TAXES	FEDERAL INCOME TAXES Federal income taxes are not provided because we intend to and believe we qualify as a REIT under the provisions of the Code and because we have distributed and intend to continue to distribute all of our taxable income to our shareholders. Our shareholders include their proportionate taxable income in their individual tax returns. As a REIT, we must distribute at least 90% of our real estate investment trust taxable income to our shareholders and meet certain income sources and investment restriction requirements. In addition, REITs are subject to a number of organizational and operational requirements. If we fail to qualify as a REIT in any taxable year, we will be subject to federal income tax on our taxable income at regular corporate tax rates. Income earned by our taxable REIT subsidiary, Whitestone Davenport TRS LLC (“Davenport TRS”), is subject to federal income tax. For the year ended December 31, 2016, we recognized $45,000 in income tax expense related to Davenport TRS taxable year. Davenport TRS was dissolved in the fourth quarter of 2016. Taxable income differs from net income for financial reporting purposes principally due to differences in the timing of recognition of interest, real estate taxes, depreciation and rental revenue. For federal income tax purposes, the cash distributions to shareholders are characterized as follows for the years ended December 31: 2018 2017 2016 Ordinary income (unaudited) 39.1 % 15.3 % 49.0 % Return of capital (unaudited) 26.5 % 84.7 % 33.7 % Capital gain distributions (unaudited) 34.4 % — % 17.3 % Total 100.0 % 100.0 % 100.0 %

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS The Contribution. Mr. James C. Mastandrea, the Chairman and Chief Executive Officer of the Company, also serves as the Chairman and Chief Executive Officer of Pillarstone REIT and beneficially owns approximately 78.5% of the outstanding equity in Pillarstone REIT (when calculated in accordance with Rule 13d-3(d)(1) under the Exchange Act of 1934, as amended (the “Exchange Act”)). Mr. John J. Dee, the Chief Operating Officer and Corporate Secretary of the Company, also serves as the Senior Vice President and Chief Financial Officer of Pillarstone REIT and beneficially owns approximately 26.6% of the outstanding equity in Pillarstone REIT (when calculated in accordance with Rule 13d-3(d)(1) under the Exchange Act). In addition, Mr. Paul T. Lambert, a Trustee of the Company, also serves as a Trustee of Pillarstone REIT. The Contribution is pursuant to the Company’s strategy of recycling capital by disposing of Non-Core Properties that do not fit the Company’s Community Centered Property ® strategy and the terms of the Contribution Agreement, the OP Unit Purchase Agreement, the Tax Protection Agreement and the Contribution were determined through arm’s-length negotiations. The Contribution was unanimously approved and recommended by a special committee of independent Trustees of the Company. See Note 5 for additional disclosure on the Contribution. Pillarstone OP. For the year ended December 31, 2017, Pillarstone OP was accounted under the profit-sharing method and related party transactions between the Company and Pillarstone OP were eliminated. As a result of the adoption of Topic 606 and ASC 610, the Company derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and recognized the Company’s investment in Pillarstone OP under the equity method. During the ordinary course of business, we have transactions with Pillarstone OP that include, but are not limited to, rental income, interest expense, general and administrative costs, commissions, management and asset management fees, and property expenses. The following table presents the revenue and expenses with Pillarstone OP included in our consolidated statements of operations for the year ended December 31, 2018 (in thousands): Location of Revenue (Expense) Rent Property operation and maintenance $ (779 ) Property management fee income Other revenues $ 1,008 Interest income Interest, dividend and other investment income $ 582 On December 8, 2016, we received a $15.4 million financed receivable from Pillarstone OP to provide the financing for the ordinary course of business transactions for Pillarstone OP. The financed receivable has a interest rate of 1.4% - 1.95% plus Libor and a maturity date of December 31, 2019. As of December 31, 2018 , the balance of the financed receivable is $5.7 million .

Equity

Equity	12 Months Ended
	Dec. 31, 2018
Stockholders' Equity Note [Abstract]
EQUITY	EQUITY Under our declaration of trust, as amended, we have authority to issue up to 400 million common shares of beneficial interest, $0.001 par value per share, and up to 50 million preferred shares of beneficial interest, $0.001 par value per share. Equity Offerings On April 25, 2017, we completed the sale of 8,018,500 common shares, including 1,018,500 common shares purchased by the underwriters upon exercise of their option to purchase additional common shares, at a public offering price per share of $13.00 (the “April 2017 Offering”). Total net proceeds from the April 2017 Offering, after deducting offering expenses, were approximately $99.9 million , which we contributed to the Operating Partnership in exchange for OP units. The Operating Partnership used the net proceeds from the April 2017 Offering to repay a portion of the 2018 Facility and for general corporate purposes, including funding a portion of the purchase price of BLVD Place and Eldorado Plaza. On June 4, 2015, we entered into nine amended and restated equity distribution agreements (the “2015 equity distribution agreements”) for an at-the-market distribution program. Pursuant to the terms and conditions of the 2015 equity distribution agreements, we could issue and sell up to an aggregate of $50 million of our common shares pursuant to our Registration Statement on Form S-3 (File No. 333-203727), which expired on April 29, 2018. Actual sales depended on a variety of factors determined by us from time to time, including (among others) market conditions, the trading price of our common shares, capital needs and our determinations of the appropriate sources of funding for us, and were made in transactions that will be deemed to be “at-the-market” offerings as defined in Rule 415 under the Securities Act. We had no obligation to sell any of our common shares, and could at any time suspend offers under the 2015 equity distribution agreements or terminate the 2015 equity distribution agreements. For the year ended December 31, 2018, we did no t sell any common shares under the 2015 equity distribution agreements. For the year ended December 31, 2017, we sold 1,324,038 common shares under the 2015 equity distribution agreements, with net proceeds to us of approximately $18.6 million . In connection with such sales, we paid compensation of approximately $0.3 million to the sales agents. For the year ended December 31, 2016, we sold 2,063,697 common shares under the 2015 equity distribution agreements, with net proceeds to us of approximately $30.0 million . In connection with such sales, we paid compensation of approximately $0.5 million to the sales agents. Operating Partnership Units Substantially all of our business is conducted through the Operating Partnership. We are the sole general partner of the Operating Partnership. As of December 31, 2018 , we owned a 97.7% interest in the Operating Partnership. Limited partners in the Operating Partnership holding OP units have the right to redeem their OP units for cash or, at our option, common shares at a ratio of one OP unit for one common share. Distributions to OP unit holders are paid at the same rate per unit as distributions per share to Whitestone common shares. As of December 31, 2018 and 2017 , there were 40,585,688 and 40,184,532 OP units outstanding, respectively. We owned 39,657,207 and 39,100,951 OP units as of December 31, 2018 and 2017 , respectively. The balance of the OP units is owned by third parties, including certain trustees. Our weighted-average share ownership in the Operating Partnership was approximately 97.5% , 97.0% and 97.8% for the years ended December 31, 2018 , 2017 and 2016 , respectively. For the year ended December 31, 2018 and 2017 , 155,100 and 19,055 OP units, respectively, were redeemed for an equal number of common shares. Distributions The following table reflects the total distributions we have paid (including the total amount paid and the amount paid per share) in each indicated quarter (in thousands, except per share data): Common Shares Noncontrolling OP Unit Holders Total Quarter Paid Distribution Per Common Share Total Amount Paid Distribution Per OP Unit Total Amount Paid Total Amount Paid 2018 Fourth Quarter $ 0.2850 $ 11,302 $ 0.2850 $ 265 $ 11,567 Third Quarter 0.2850 11,294 0.2850 286 11,580 Second Quarter 0.2850 11,203 0.2850 295 11,498 First Quarter 0.2850 11,145 0.2850 309 11,454 Total $ 1.1400 $ 44,944 $ 1.1400 $ 1,155 $ 46,099 2017 Fourth Quarter $ 0.2850 $ 11,002 $ 0.2850 $ 309 $ 11,311 Third Quarter 0.2850 10,948 0.2850 309 11,257 Second Quarter 0.2850 10,093 0.2850 310 10,403 First Quarter 0.2850 8,429 0.2850 313 8,742 Total $ 1.1400 $ 40,472 $ 1.1400 $ 1,241 $ 41,713

Incentive Share Plan

Incentive Share Plan	12 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
INCENTIVE SHARE PLAN	INCENTIVE SHARE PLAN On July 29, 2008, our shareholders approved the 2008 Plan. On December 22, 2010, our board of trustees amended the 2008 Plan to allow for awards in or related to Class B common shares pursuant to the 2008 Plan. On June 27, 2012, our Class B common shares were redesignated as “common shares.” The 2008 Plan, as amended, provides that awards may be made with respect to common shares of Whitestone or OP units, which may be redeemed for cash or, at our option, common shares of Whitestone. The maximum aggregate number of common shares that may be issued under the 2008 Plan is increased upon each issuance of common shares by Whitestone so that at any time the maximum number of common shares that may be issued under the 2008 Plan shall equal 12.5% of the aggregate number of common shares of Whitestone and OP units issued and outstanding (other than shares and/or units issued to or held by Whitestone). The Compensation Committee of our board of trustees administers the 2008 Plan, except with respect to awards to non-employee trustees, for which the 2008 Plan is administered by our board of trustees. The Compensation Committee is authorized to grant share options, including both incentive share options and non-qualified share options, as well as share appreciation rights, either with or without a related option. The Compensation Committee is also authorized to grant restricted common shares, restricted common share units, performance awards and other share-based awards. On April 2, 2014, the Compensation Committee approved the modification of the vesting provisions with respect to awards of an aggregate of 633,704 restricted common shares and restricted common share units for certain of our employees. The modified time-based shares vested annually in three equal installments. The modified performance-based restricted common shares and restricted common share units were modified to include performance-based vesting based on achievement of certain absolute financial goals, as well as one to two years of time-based vesting post achievement of financial goals. Continued employment is required through the applicable vesting date. Additionally, 2,049,116 restricted performance-based common share units were granted with the same vesting conditions as the modified performance-based grants described above. The performance targets were not met prior to December 31, 2018, any unvested performance-based restricted common shares and restricted common share units were forfeited. The Compensation Committee approved the grant of an aggregate of 320,000 and 143,000 time-based restricted common share units on June 30, 2016 and 2015, respectively, to James C. Mastandrea and David K. Holeman. On September 6, 2017, the Compensation Committee approved the grant of an aggregate of 267,783 performance-based restricted common share units under the 2008 Plan with market-based vesting conditions (the “TSR Units”) to certain of our employees. Vesting is contingent upon achieving Total Shareholder Return relative to the peer group defined in the TSR Unit award agreements over a three -year performance period. At the end of the performance period, the number of common shares awarded for each vested TSR Unit will vary from 0% to 200% depending on the Company’s ranking in the peer group (the “TSR Peer Group Ranking”). Continued employment is required through the vesting date. The grant date fair value for each TSR Unit of $12.37 was determined using the Monte Carlo simulation method and is being recognized as share-based compensation expense ratably from the September 30, 2017 grant date to the end of the performance period, December 31, 2019. The Monte Carlo simulation model utilizes multiple input variables that determine the probability of satisfying the market condition stipulated in the award grant and calculates the fair value of the award. Expected volatilities utilized in the model were estimated using a historical period consistent with the performance period of approximately three years. The risk-free interest rate was based on the United States Treasury rate for a term commensurate with the expected life of the grant. On September 6, 2017, the Compensation Committee approved the grant of an aggregate of 965,000 performance-based restricted common share units under the 2008 Plan which only vest immediately prior to the consummation of a Change in Control (as defined in the 2008 Plan) that occurs on or before September 30, 2024 (the “CIC Units”) to certain of our employees. Continued employment is required through the vesting date. If a Change in Control does not occur on or before September 30, 2024, the CIC Units shall be immediately forfeited. The Company considers a Change in Control on or before September 30, 2024 to be improbable, and no expense has been recognized for the CIC Units. If a Change in Control occurs, any outstanding CIC Units would be expensed immediately on the date of the Change in Control using the grant date fair value. The grant date fair value for each CIC Unit of $13.05 was determined based on the Company’s closing share price on the grant date. At the Company’s annual meeting of shareholders on May 11, 2017, its shareholders voted to approve the 2018 Long-Term Equity Incentive Ownership Plan (the “2018 Plan”). The 2018 Plan provides for the issuance of up to 3,433,831 common shares and OP units pursuant to awards under the 2018 Plan. The 2018 Plan became effective on July 30, 2018, which was the day after the 2008 Plan expired. The Compensation Committee administers the 2018 Plan, except with respect to awards to non-employee trustees, for which the 2018 Plan is administered by the Board of Trustees. The Compensation Committee is authorized to grant share options, including both incentive share options and non-qualified share options, as well as share appreciation rights, either with or without a related option. The Compensation Committee is also authorized to grant restricted common shares, restricted common share units, performance awards and other share-based awards On December 1, 2018, the Compensation Committee approved the grant of an aggregate of 229,684 TSR Units under the 2018 Plan to certain of our employees. Vesting is contingent upon achieving Total Shareholder Return relative to the peer group defined in the TSR Unit award agreements over a three -year performance period. At the end of the performance period, the number of common shares awarded for each vested TSR Unit will vary from 0% to 200% depending on the Company’s TSR Peer Group Ranking. Continued employment is required through the vesting date. The grant date fair value for each TSR Unit of $14.89 was determined using the Monte Carlo simulation method and is being recognized as share-based compensation expense ratably from the December 1, 2018 grant date to the end of the performance period, December 31, 2020. The Monte Carlo simulation model utilizes multiple input variables that determine the probability of satisfying the market condition stipulated in the award grant and calculates the fair value of the award. Expected volatilities utilized in the model were estimated using a historical period consistent with the performance period of approximately three years. The risk-free interest rate was based on the United States Treasury rate for a term commensurate with the expected life of the grant. A summary of the share-based incentive plan activity as of and for the year ended December 31, 2018 is as follows: Shares Weighted-Average Grant Date Fair Value (1) Non-vested at January 1, 2018 2,481,331 $ 13.60 Granted 653,472 11.07 Vested (560,126 ) 14.24 Forfeited (651,295 ) 14.03 Non-vested at December 31, 2018 1,923,382 $ 12.41 Available for grant at December 31, 2018 3,172,158 (1) The fair value of the shares granted were determined based on observable market transactions occurring near the date of the grants. A summary of our nonvested and vested shares activity for the years ended December 31, 2018 , 2017 and 2016 is presented below: Shares Granted Shares Vested Year Ended Non-Vested Shares Issued Weighted-Average Grant-Date Fair Value Vested Shares Total Vest-Date Fair Value (in thousands) Year Ended December 31, 2018 653,472 $ 11.07 (560,126 ) $ 7,978 Year Ended December 31, 2017 1,354,534 $ 12.92 (881,710 ) $ 12,829 Year Ended December 31, 2016 545,778 $ 14.85 (734,261 ) $ 10,577 Total compensation recognized in earnings for share-based payments for the years ended December 31, 2018 , 2017 and 2016 was $6.8 million , $10.4 million and $10.2 million , respectively. Based on our current financial projections, we expect 100% of the unvested awards, exclusive of 965,000 CIC Units, to vest over the next 33 months. As of December 31, 2018 , there was approximately $4.6 million in unrecognized compensation cost related to outstanding non-vested TSR Units, which are expected to vest over a period of 24 months and approximately $2.9 million in unrecognized compensation cost related to outstanding non-vested time-based shares, which are expected to be recognized over a period of approximately 33 months beginning on January 1, 2019. We expect to record approximately $7.5 million in share-based compensation subsequent to the year ended December 31, 2018 . The unrecognized share-based compensation cost is expected to vest over a weighted average period of 22 months. The dilutive impact of the performance-based shares will be included in the denominator of the earnings per share calculation beginning in the period that the performance conditions are expected to be met. The dilutive impact of the TSR Units is based on the Company’s TSR Peer Group Ranking as of the reporting date and weighted according to the number of days outstanding in the period. As of December 31, 2018 , the TSR Peer Group Ranking called for 200% attainment. The dilutive impact of the CIC Units is based on the probability of a Change in Control. Because the Company considers a Change in Control on or before September 30, 2024 to be improbable, no CIC Units are included in the Company’s dilutive shares.

Grants to Trustees

Grants to Trustees	12 Months Ended
	Dec. 31, 2018
Grants to Trustees [Abstract]
GRANTS TO TRUSTEES	GRANTS TO TRUSTEES On December 28, 2018, each of our six independent trustees and one trustee emeritus were granted 3,000 common shares, which vest immediately and are prorated based on date appointed. The 21,000 common shares granted to our trustees had a grant fair value of $12.42 per share. On December 28, 2018, two of our independent trustees each elected to receive a total of 4,186 common shares with a grant date fair value of $12.42 in lieu of cash for board fees. The fair value of the shares granted during the year ended December 31, 2018 was determined using quoted prices available on the date of grant. On December 12, 2017, each of our six independent trustees and one trustee emeritus were granted 3,000 common shares, which vest immediately and are prorated based on date appointed. The 16,281 common shares granted to our trustees had a grant fair value of $14.46 per share. On December 12, 2017, three of our independent trustees each elected to receive a total of 2,320 common shares with a grant date fair value of $14.46 in lieu of cash for board fees. The fair value of the shares granted during the year ended December 31, 2017 was determined using quoted prices available on the date of grant. On December 21, 2016, each of our four independent trustees and one trustee emeritus were granted 1,500 common shares, which vest immediately. The 7,500 common shares granted to our trustees had a grant date fair value of $14.07 per share. On December 21, 2016, two of our independent trustees each elected to receive a total of 3,128 common shares with a grant date fair value of $14.07 in lieu of cash for board fees. The fair value of the shares granted during the year ended December 31, 2016 was determined using quoted prices available on the date of grant.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES We are a participant in various legal proceedings and claims that arise in the ordinary course of our business. These matters are generally covered by insurance. While the resolution of these matters cannot be predicted with certainty, we believe that the final outcome of these matters will not have a material effect on our financial position, results of operations, or cash flows.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION Our management historically has not differentiated by property types and therefore does not present segment information.

Selected Quarterly Financial Da

Selected Quarterly Financial Data (unaudited)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
SELECTED QUARTERLY FINANCIAL DATA (unaudited)	SELECTED QUARTERLY FINANCIAL DATA (unaudited) The following is a summary of our unaudited quarterly financial information for the years ended December 31, 2018 and 2017 (in thousands, except per share data): First Second Third Quarter Quarter Quarter Fourth (As restated) (As restated) (As restated) Quarter 2018 Revenues $ 29,785 $ 29,473 $ 30,704 $ 29,901 Net income $ 3,269 $ 2,005 $ 8,033 $ 8,674 Net income attributable to Whitestone REIT $ 3,181 $ 1,954 $ 7,835 $ 8,457 Basic Earnings per share: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1) $ 0.08 $ 0.05 $ 0.20 $ 0.21 Diluted Earnings per share: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1) $ 0.08 $ 0.05 $ 0.19 $ 0.21 First Second Third Fourth Quarter Quarter Quarter Quarter 2017 Revenues $ 28,267 $ 30,208 $ 33,653 $ 33,831 Net income $ 1,493 $ 2,043 $ 3,077 $ 1,975 Net income attributable to Whitestone REIT $ 1,440 $ 1,983 $ 2,993 $ 1,921 Basic Earnings per share: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1) $ 0.05 $ 0.05 $ 0.07 $ 0.05 Diluted Earnings per share: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1) $ 0.04 $ 0.05 $ 0.07 $ 0.05 (1) The sum of individual quarterly basic and diluted earnings per share amounts may not agree with the year-to-date basic and diluted earning per share amounts as the result of each period’s computation being based on the weighted average number of common shares outstanding during that period. Quarterly Restatement of the 2018 Unaudited Quarterly Financial Statements As previously disclosed in the Company’s Current Form 8-K filed with the SEC on February 27, 2019, on January 1, 2018, the Company adopted Topic 606, as subsequently amended, using the modified retrospective method and applied Topic 606 to those contracts that were not completed as of January 1, 2018. We applied Topic 606 to account for sales of real estate (that do not meet the definition of a business) to customers. We accounted for sales of real estate (that do not meet the definition of a business) to noncustomers under Accounting Standards Codification 610, “ Other Income-Gains and Losses from the Derecognition of Nonfinancial Assets ” (“ASC 610”), which requires the application of certain concepts from ASC 606. In August 2018, the Company received a comment letter from the Staff relating to its Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2018. The Staff requested that the Company provide them with an analysis of the Company’s determination that the contribution of assets to Pillarstone OP (as described in the Form 8-K) did not meet the requirements for derecognition of the underlying assets under Topic 606, and an explanation of the Company’s consideration of the immaterial accounting errors related to Pillarstone OP in its conclusion that the Company’s disclosure controls and procedures and internal controls over financial reporting were effective as of June 30, 2018 and December 31, 2017. In September 2018, the Company responded to the Staff’s letter with the requested analysis and explanation. In October 2018, the Company received a comment letter from the Staff with certain follow up questions. Subsequently, the Company engaged in verbal discussions with the Staff regarding its responses, and in February 2019, the Staff verbally informed the Company that it objected to the Company’s conclusion regarding the assessment of the transfer of control criteria in Topic 606 with respect to the contribution and objected to the Company’s continued recognition of the underlying assets and liabilities associated with the contribution subsequent to the adoption of Topic 606 on January 1, 2018. Accordingly, the Company concluded that the Company’s 2018 Quarterly Financial Statements should be restated. Because this change from the profit sharing method is only applicable for periods ending after giving effect to the implementation of Topic 606, no periods prior to January 1, 2018 are affected by this error. See Note 5 Investment in Real Estate Partnership for further details. As a result of Topic 606 and ASC 610 adoptions and as reflected in the Quarterly Restatement, the Company has derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and has recognized the Company’s investment in Pillarstone OP under the equity method of accounting. As a part of the Quarterly Restatement, the Company has made the following adjustments to the 2018 Quarterly Financial Statements. CONSOLIDATED BALANCE SHEETS (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated ASSETS Real estate assets, at cost Property $ 1,148,176 $ (96,192 ) $ 1,051,984 Accumulated depreciation (135,599 ) 36,811 (98,788 ) Total real estate assets 1,012,577 (59,381 ) 953,196 Investment in real estate partnership — 19,298 19,298 Cash and cash equivalents 9,337 (2,361 ) 6,976 Restricted cash 257 — 257 Escrows and acquisition deposits 6,690 (1,133 ) 5,557 Accrued rents and accounts receivable, net of allowance for doubtful accounts 24,675 (2,866 ) 21,809 Receivable due from related party — 894 894 Financed receivable due from related party — 15,473 15,473 Unamortized lease commissions and loan costs 8,260 (1,238 ) 7,022 Prepaid expenses and other assets 9,451 (10 ) 9,441 Total assets $ 1,071,247 $ (31,324 ) $ 1,039,923 LIABILITIES AND EQUITY Liabilities: Notes payable $ 668,526 $ (48,540 ) $ 619,986 Accounts payable and accrued expenses 30,198 (1,576 ) 28,622 Payable due to related party — 699 699 Tenants’ security deposits 7,028 (1,262 ) 5,766 Dividends and distributions payable 11,489 — 11,489 Total liabilities 717,241 (50,679 ) 666,562 Commitments and contingencies: — — — Equity: Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of March 31, 2018 — — — Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,179,540 issued and outstanding as of March 31, 2018 38 — 38 Additional paid-in capital 522,730 — 522,730 Accumulated deficit (184,853 ) 19,272 (165,581 ) Accumulated other comprehensive gain 5,528 — 5,528 Total Whitestone REIT shareholders’ equity 343,443 19,272 362,715 Redeemable operating partnership units 10,642 4 10,646 Noncontrolling interest in subsidiary (79 ) 79 — Total equity 354,006 19,355 373,361 Total liabilities and equity $ 1,071,247 $ (31,324 ) $ 1,039,923 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED BALANCE SHEETS (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated ASSETS Real estate assets, at cost Property $ 1,149,528 $ (96,757 ) $ 1,052,771 Accumulated depreciation (141,442 ) 37,746 (103,696 ) Total real estate assets 1,008,086 (59,011 ) 949,075 Investment in real estate partnership 4,419 15,465 19,884 Cash and cash equivalents 3,125 — 3,125 Restricted cash 213 — 213 Escrows and acquisition deposits 6,515 — 6,515 Accrued rents and accounts receivable, net of allowance for doubtful accounts 20,464 — 20,464 Receivable due from related party — 772 772 Financed receivable due from related party — 15,473 15,473 Unamortized lease commissions and loan costs 6,911 — 6,911 Prepaid expenses and other assets 10,217 — 10,217 Total assets $ 1,059,950 $ (27,301 ) $ 1,032,649 LIABILITIES AND EQUITY Liabilities: Notes payable $ 667,595 $ (48,241 ) $ 619,354 Accounts payable and accrued expenses 29,157 347 29,504 Payable due to related party — 1,067 1,067 Tenants’ security deposits 5,769 — 5,769 Dividends and distributions payable 11,628 — 11,628 Total liabilities 714,149 (46,827 ) 667,322 Commitments and contingencies: — — — Equity: Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of June 30, 2018 — — — Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,743,829 issued and outstanding as of June 30, 2018 38 — 38 Additional paid-in capital 524,191 — 524,191 Accumulated deficit (194,520 ) 19,516 (175,004 ) Accumulated other comprehensive gain 6,430 — 6,430 Total Whitestone REIT shareholders’ equity 336,139 19,516 355,655 Noncontrolling interest in subsidiary 9,662 10 9,672 Total equity 345,801 19,526 365,327 Total liabilities and equity $ 1,059,950 $ (27,301 ) $ 1,032,649 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED BALANCE SHEETS (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated ASSETS Real estate assets, at cost Property $ 1,146,951 $ (97,636 ) $ 1,049,315 Accumulated depreciation (145,807 ) 38,642 (107,165 ) Total real estate assets 1,001,144 (58,994 ) 942,150 Investment in real estate partnership 2,770 17,616 20,386 Cash and cash equivalents 9,389 — 9,389 Restricted cash 91 — 91 Escrows and acquisition deposits 7,702 — 7,702 Accrued rents and accounts receivable, net of allowance for doubtful accounts 21,906 (12 ) 21,894 Receivable due from related party — 308 308 Financed receivable due from related party — 14,473 14,473 Unamortized lease commissions and loan costs 6,847 — 6,847 Prepaid expenses and other assets 10,597 — 10,597 Total assets $ 1,060,446 $ (26,609 ) $ 1,033,837 LIABILITIES AND EQUITY Liabilities: Notes payable $ 666,624 $ (47,939 ) $ 618,685 Accounts payable and accrued expenses 32,846 332 33,178 Payable due to related party — 1,276 1,276 Tenants’ security deposits 5,920 — 5,920 Dividends and distributions payable 11,600 — 11,600 Total liabilities 716,990 (46,331 ) 670,659 Commitments and contingencies: — — — Equity: Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of September 30, 2018 — — — Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,772,105 issued and outstanding as of September 30, 2018 38 — 38 Additional paid-in capital 525,780 — 525,780 Accumulated deficit (198,199 ) 19,706 (178,493 ) Accumulated other comprehensive gain 7,034 — 7,034 Total Whitestone REIT shareholders’ equity 334,653 19,706 354,359 Noncontrolling interest in subsidiary 8,803 16 8,819 Total equity 343,456 19,722 363,178 Total liabilities and equity $ 1,060,446 $ (26,609 ) $ 1,033,837 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited March 31, 2018 Previously Reported (1) Adjustments Restated Property revenues Rental revenues $ 24,946 $ (3,274 ) $ 21,672 Other revenues 8,650 (537 ) 8,113 Total property revenues 33,596 (3,811 ) 29,785 Property expenses Property operation and maintenance 5,708 (852 ) 4,856 Real estate taxes 4,657 (681 ) 3,976 Total property expenses 10,365 (1,533 ) 8,832 Other expenses (income) General and administrative 6,314 13 6,327 Depreciation and amortization 7,221 (947 ) 6,274 Equity in earnings of real estate partnership — (674 ) (674 ) Interest expense 6,501 (528 ) 5,973 Interest, dividend and other investment income (99 ) (158 ) (257 ) Total other expense 19,937 (2,294 ) 17,643 Income before gain (loss) on sale or disposal of properties or assets, and income taxes 3,294 16 3,310 Provision for income taxes (129 ) 19 (110 ) Gain on sale of properties 266 (17 ) 249 Loss on sale or disposal of assets (197 ) 17 (180 ) Net income 3,234 35 3,269 Redeemable operating partnership units 84 4 88 Non-controlling interests in Consolidated Partnership 122 (122 ) — Less: Net income attributable to noncontrolling interests 206 (118 ) 88 Net income attributable to Whitestone REIT $ 3,028 $ 153 $ 3,181 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated Basic Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.08 $ 0.00 $ 0.08 Diluted Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.07 $ 0.01 $ 0.08 Weighted average number of common shares outstanding: Basic 39,066 — 39,066 Diluted 40,088 — 40,088 Distributions declared per common share / OP unit $ 0.2850 $ — $ 0.2850 Consolidated Statements of Comprehensive Income Net income $ 3,234 $ 35 $ 3,269 Other comprehensive gain Unrealized gain on cash flow hedging activities 2,645 — 2,645 Unrealized gain on available-for-sale marketable securities 18 — 18 Comprehensive income 5,897 35 5,932 Less: Net income attributable to noncontrolling interests 206 (118 ) 88 Less: Comprehensive gain attributable to noncontrolling interests 71 — 71 Comprehensive income attributable to Whitestone REIT $ 5,620 $ 153 $ 5,773 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Three Months Ended Unaudited Six Months Ended Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Property revenues Rental revenues $ 24,650 $ (3,268 ) $ 21,382 $ 49,596 $ (6,542 ) $ 43,054 Other revenues 8,422 (331 ) 8,091 17,072 (868 ) 16,204 Total property revenues 33,072 (3,599 ) 29,473 66,668 (7,410 ) 59,258 Property expenses Property operation and maintenance 5,838 (821 ) 5,017 11,546 (1,673 ) 9,873 Real estate taxes 4,485 (580 ) 3,905 9,142 (1,261 ) 7,881 Total property expenses 10,323 (1,401 ) 8,922 20,688 (2,934 ) 17,754 Other expenses (income) General and administrative 6,624 54 6,678 12,938 67 13,005 Depreciation and amortization 7,396 (1,103 ) 6,293 14,617 (2,050 ) 12,567 Equity in earnings of real estate partnership — (586 ) (586 ) — (1,260 ) (1,260 ) Interest expense 6,854 (541 ) 6,313 13,355 (1,069 ) 12,286 Interest, dividend and other investment income (119 ) (165 ) (284 ) (218 ) (323 ) (541 ) Total other expense 20,755 (2,341 ) 18,414 40,692 (4,635 ) 36,057 Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense 1,994 143 2,137 5,288 159 5,447 Provision for income taxes (84 ) 25 (59 ) (213 ) 44 (169 ) Gain on sale of properties — — — 266 (17 ) 249 Profit sharing expense (81 ) 81 — (203 ) 203 — Loss on sale or disposal of assets (74 ) 1 (73 ) (271 ) 18 (253 ) Net income 1,755 250 2,005 4,867 407 5,274 Less: Net income attributable to noncontrolling interests 45 6 51 128 10 138 Net income attributable to Whitestone REIT $ 1,710 $ 244 $ 1,954 $ 4,739 $ 397 $ 5,136 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Unaudited Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Basic Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.04 $ 0.01 $ 0.05 $ 0.12 $ 0.01 $ 0.13 Diluted Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.04 $ 0.01 $ 0.05 $ 0.11 $ 0.01 $ 0.12 Weighted average number of common shares outstanding: Basic 39,204 — 39,204 39,136 — 39,136 Diluted 40,679 — 40,679 40,519 — 40,519 Distributions declared per common share / OP unit $ 0.2850 $ — $ 0.2850 $ 0.5700 $ — $ 0.5700 Consolidated Statements of Comprehensive Income Net income $ 1,755 $ 250 $ 2,005 $ 4,867 $ 407 $ 5,274 Other comprehensive gain Unrealized gain on cash flow hedging activities 913 — 913 3,558 — 3,558 Unrealized gain on available-for-sale marketable securities — — — 18 — 18 Comprehensive income 2,668 250 2,918 8,443 407 8,850 Less: Net income attributable to noncontrolling interests 45 6 51 128 10 138 Less: Comprehensive gain attributable to noncontrolling interests 23 — 23 94 — 94 Comprehensive income attributable to Whitestone REIT $ 2,600 $ 244 $ 2,844 $ 8,221 $ 397 $ 8,618 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Three Months Ended Unaudited Nine Months Ended Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Property revenues Rental revenues $ 25,256 $ (3,292 ) $ 21,964 $ 74,852 $ (9,834 ) $ 65,018 Other revenues 9,340 (600 ) 8,740 26,412 (1,468 ) 24,944 Total property revenues 34,596 (3,892 ) 30,704 101,264 (11,302 ) 89,962 Property expenses Property operation and maintenance 6,374 (922 ) 5,452 17,920 (2,595 ) 15,325 Real estate taxes 5,253 (874 ) 4,379 14,395 (2,135 ) 12,260 Total property expenses 11,627 (1,796 ) 9,831 32,315 (4,730 ) 27,585 Other expenses (income) General and administrative 4,959 23 4,982 17,897 90 17,987 Depreciation and amortization 7,483 (1,006 ) 6,477 22,100 (3,056 ) 19,044 Equity in earnings of real estate partnership — (502 ) (502 ) — (1,762 ) (1,762 ) Interest expense 6,951 (532 ) 6,419 20,306 (1,601 ) 18,705 Interest, dividend and other investment income (84 ) (167 ) (251 ) (302 ) (490 ) (792 ) Total other expense 19,309 (2,184 ) 17,125 60,001 (6,819 ) 53,182 Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense 3,660 88 3,748 8,948 247 9,195 Provision for income taxes (115 ) 23 (92 ) (328 ) 67 (261 ) Gain on sale of properties 4,380 — 4,380 4,646 (17 ) 4,629 Profit sharing expense (73 ) 73 — (276 ) 276 — Loss on sale or disposal of assets (15 ) 12 (3 ) (286 ) 30 (256 ) Net income 7,837 196 8,033 12,704 603 13,307 Less: Net income attributable to noncontrolling interests 193 5 198 326 16 342 Net income attributable to Whitestone REIT $ 7,644 $ 191 $ 7,835 $ 12,378 $ 587 $ 12,965 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Unaudited Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Basic Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.19 $ 0.01 $ 0.20 $ 0.31 $ 0.02 $ 0.33 Diluted Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.19 $ 0.00 $ 0.19 $ 0.30 $ 0.01 $ 0.31 Weighted average number of common shares outstanding: Basic 39,327 — 39,327 39,200 — 39,200 Diluted 40,635 — 40,635 40,541 — 40,541 Distributions declared per common share / OP unit $ 0.2850 $ — $ 0.2850 $ 0.8550 $ — $ 0.8550 Consolidated Statements of Comprehensive Income Net income $ 7,837 $ 196 $ 8,033 $ 12,704 $ 603 $ 13,307 Other comprehensive gain Unrealized gain on cash flow hedging activities 605 — 605 4,163 — 4,163 Unrealized gain on available-for-sale marketable securities — — — 18 — 18 Comprehensive income 8,442 196 8,638 16,885 603 17,488 Less: Net income attributable to noncontrolling interests 193 5 198 326 16 342 Less: Comprehensive gain attributable to noncontrolling interests 15 — 15 107 — 107 Comprehensive income attributable to Whitestone REIT $ 8,234 $ 191 $ 8,425 $ 16,452 $ 587 $ 17,039 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited Previously Reported (1) Adjustments Restated Cash flows from operating activities: Net income $ 3,234 $ 35 $ 3,269 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 7,221 (947 ) 6,274 Amortization of deferred loan costs 327 (25 ) 302 Loss on sale of marketable securities 20 — 20 Loss (gain) on sale or disposal of assets and properties (69 ) — (69 ) Bad debt expense 478 (32 ) 446 Share-based compensation 1,845 — 1,845 Equity in earnings of real estate partnership — (674 ) (674 ) Changes in operating assets and liabilities: Escrows and acquisition deposits 3,414 (1,055 ) 2,359 Accrued rent and accounts receivable (1,649 ) 534 (1,115 ) Receivable due from related party — 110 110 Distributions from real estate partnership — 505 505 Unamortized lease commissions (493 ) 90 (403 ) Prepaid expenses and other assets 494 (57 ) 437 Accounts payable and accrued expenses (8,828 ) 1,531 (7,297 ) Payable due to related party — (980 ) (980 ) Tenants’ security deposits 143 (71 ) 72 Net cash provided by operating activities 6,137 (1,036 ) 5,101 Cash flows from investing activities: Additions to real estate (5,090 ) 1,047 (4,043 ) Proceeds from sales of properties 4,433 — 4,433 Investment in real estate partnership — — — Proceeds from sales of marketable securities 30 — 30 Net cash provided by (used in) investing activities (627 ) 1,047 420 Cash flows from financing activities: Distributions paid to common shareholders (11,145 ) — (11,145 ) Distributions paid to OP unit holders (309 ) — (309 ) Distributions paid to noncontrolling interest in Consolidated Partnership (115 ) 115 — Net proceeds from credit facility 9,000 — 9,000 Repayments of notes payable (903 ) 325 (578 ) Payments of loan origination costs — — — Repurchase of common shares (466 ) — (466 ) Net cash used in financing activities (3,938 ) 440 (3,498 ) Net increase in cash, cash equivalents and restricted cash 1,572 451 2,023 Cash, cash equivalents and restricted cash at beginning of period 8,022 (2,812 ) 5,210 Cash, cash equivalents and restricted cash at end of period $ 9,594 $ (2,361 ) $ 7,233 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Supplemental Disclosures Unaudited Previously Reported (1) Adjustments Restated Supplemental disclosure of cash flow information: Cash paid for interest $ 6,316 $ (510 ) $ 5,806 Non cash investing and financing activities: Financed insurance premiums $ 1,273 $ — $ 1,273 Value of shares issued under dividend reinvestment plan $ 33 $ — $ 33 Value of common shares exchanged for OP units $ 4 $ — $ 4 Change in fair value of available-for-sale securities $ 18 $ — $ 18 Change in fair value of cash flow hedge $ 2,645 $ — $ 2,645 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited Previously Reported (1) Adjustments Restated Cash flows from operating activities: Net income $ 4,867 $ 407 $ 5,274 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 14,617 (2,050 ) 12,567 Amortization of deferred loan costs 653 (50 ) 603 Loss on sale of marketable securities 20 — 20 Loss (gain) on sale or disposal of assets and properties 5 (1 ) 4 Bad debt expense 761 (99 ) 662 Share-based compensation 3,246 — 3,246 Equity in earnings of real estate partnership — (1,260 ) (1,260 ) Changes in operating assets and liabilities: Escrows and acquisition deposits 1,401 — 1,401 Accrued rent and accounts receivable 15 (1 ) 14 Receivable due from related party — 232 232 Distributions from real estate partnership — 505 505 Unamortized lease commissions (852 ) — (852 ) Prepaid expenses and other assets 504 2 506 Accounts payable and accrued expenses (6,370 ) (40 ) (6,410 ) Payable due to related party — (612 ) (612 ) Tenants’ security deposits 75 — 75 Net cash provided by operating activities 18,942 (2,967 ) 15,975 Cash flows from investing activities: Additions to real estate (7,566 ) 1,669 (5,897 ) Proceeds from sales of properties 4,433 — 4,433 Investment in real estate partnership (649 ) 649 — Proceeds from sales of marketable securities 30 — 30 Net cash used in investing activities (3,752 ) 2,318 (1,434 ) Cash flows from financing activities: Distributions paid to common shareholders (22,348 ) — (22,348 ) Distributions paid to OP unit holders (604 ) — (604 ) Payments of exchange offer costs (128 ) — (128 ) Net proceeds from credit facility 9,000 — 9,000 Repayments of notes payable (1,923 ) 649 (1,274 ) Repurchase of common shares (1,059 ) — (1,059 ) Net cash used in financing activities (17,062 ) 649 (16,413 ) Net decrease in cash, cash equivalents and restricted cash (1,872 ) — (1,872 ) Cash, cash equivalents and restricted cash at beginning of period 5,210 — 5,210 Cash, cash equivalents and restricted cash at end of period $ 3,338 $ — $ 3,338 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Supplemental Disclosures Unaudited Previously Reported (1) Adjustments Restated Supplemental disclosure of cash flow information: Cash paid for interest $ 12,377 $ (1,022 ) $ 11,355 Cash paid for taxes $ 392 $ (88 ) $ 304 Non cash investing and financing activities: Disposal of fully depreciated real estate $ 960 $ (56 ) $ 904 Financed insurance premiums $ 1,273 $ — $ 1,273 Value of shares issued under dividend reinvestment plan $ 66 $ — $ 66 Value of common shares exchanged for OP units $ 752 $ — $ 752 Change in fair value of available-for-sale securities $ 18 $ — $ 18 Change in fair value of cash flow hedge $ 3,558 $ — $ 3,558 Reallocation of ownership percentage between parent and subsidiary $ 12 $ — $ 12 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited Previously Reported (1) Adjustments Restated Cash flows from operating activities: Net income $ 12,704 $ 603 $ 13,307 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 22,100 (3,056 ) 19,044 Amortization of deferred loan costs 976 (74 ) 902 Loss on sale of marketable securities 20 — 20 Loss (gain) on sale or disposal of assets and properties (4,360 ) (13 ) (4,373 ) Bad debt expense 1,123 (153 ) 970 Share-based compensation 4,894 — 4,894 Equity in earnings of real estate partnership — (1,762 ) (1,762 ) Changes in operating assets and liabilities: Escrows and acquisition deposits 214 — 214 Accrued rent and accounts receivable (1,736 ) 12 (1,724 ) Receivable due from related party — 696 696 Distributions from real estate partnership — 505 505 Unamortized lease commissions (1,394 ) (2 ) (1,396 ) Prepaid expenses and other assets 618 1 619 Accounts payable and accrued expenses (2,924 ) (55 ) (2,979 ) Accounts payable due to related party — (403 ) (403 ) Tenants’ security deposits 226 — 226 Net cash provided by operating activities 32,461 (3,701 ) 28,760 Cash flows from investing activities: Acquisitions of real estate — — Additions to real estate (11,300 ) 2,567 (8,733 ) Proceeds from sales of properties 12,574 — 12,574 Proceeds from financed receivable due from related party — 1,000 1,000 Investment in real estate partnership 843 (843 ) — Proceeds from sales of marketable securities 30 — 30 Net cash provided by investing activities 2,147 2,724 4,871 Cash flows from financing activities: Distributions paid to common shareholders (33,642 ) — (33,642 ) Distributions paid to OP unit holders (890 ) — (890 ) Payments of exchange offer costs (128 ) — (128 ) Net proceeds from credit facility 9,000 — 9,000 Repayments of notes payable (2,949 ) 977 (1,972 ) Payments of loan origination costs (30 ) — (30 ) Repurchase of common shares (1,699 ) — (1,699 ) Net cash used in financing activities (30,338 ) 977 (29,361 ) Net increase in cash, cash equivalents and restricted cash 4,270 — 4,270 Cash, cash equivalents and restricted cash at beginning of period 5,210 — 5,210 Cash, cash equivalents and restricted cash at end of period $ 9,480 $ — $ 9,480 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Supplemental Disclosures Unaudited Previously Reported (1) Adjustments Restated Supplemental disclosure of cash flow information: Cash paid for interest $ 19,879 $ (1,698 ) $ 18,181 Cash paid for taxes $ 392 $ (88 ) $ 304 Non cash investing and financing activities: Disposal of fully depreciated real estate $ 963 $ (59 ) $ 904 Financed insurance premiums $ 1,273 $ — $ 1,273 Value of shares issued under dividend reinvestment plan $ 101 $ — $ 101 Value of common shares exchanged for OP units $ 1,545 $ — $ 1,545 Change in fair value of available-for-sale securities $ 18 $ — $ 18 Change in fair value of cash flow hedge $ 4,163 $ — $ 4,163 Reallocation of ownership percentage between parent and subsidiary $ 24 $ — $ 24 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS On January 31, 2019, we, through our Operating Partnership, entered into an unsecured credit facility (the “2019 Facility”) with the lenders party thereto, Bank of Montreal, as administrative agent (the “Agent”), SunTrust Robinson Humphrey, as syndication agent, and BMO Capital Markets Corp., U.S. Bank National Association, SunTrust Robinson Humphrey and Regions Capital Markets, as co-lead arrangers and joint book runners. The 2019 Facility amended and restated the 2018 Facility. The 2019 Facility is comprised of the following three tranches: • $250.0 million unsecured revolving credit facility with a maturity date of January 1, 2023 (the “2019 Revolver”); • $165.0 million unsecured term loan with a maturity date of January 31, 2024 (“Term Loan A”); and • $100.0 million unsecured term loan with a maturity date of October 30, 2022 (“Term Loan B” and together with Term Loan A, the “2019 Term Loans”). The 2019 Facility includes an accordion feature that will allow the Operating Partnership to increase the borrowing capacity by $200.0 million , upon the satisfaction of certain conditions. The Company used $446.2 million of proceeds from the 2019 Facility to repay amounts outstanding under 2018 Facility and intends to use the remaining proceeds from the 2019 Facility for general corporate purposes, including property acquisitions, debt repayment, capital expenditures, the expansion, redevelopment and re-tenanting of properties in its portfolio and working capital. The Company, each direct and indirect material subsidiary of the Operating Partnership and any other subsidiary of the Operating Partnership that is a guarantor under any unsecured ratable debt will serve as a guarantor for funds borrowed by the Operating Partnership under the 2019 Facility. The 2019 Facility contains customary terms and conditions, including, without limitation, customary representations and warranties and affirmative and negative covenants including, without limitation, information reporting requirements, limitations on investments, acquisitions, loans and advances, mergers, consolidations and sales, incurrence of liens, dividends and restricted payments. In addition, the 2019 Facility contains certain financial covenants including the following: • maximum total indebtedness to total asset value ratio of 0.60 to 1.00; • maximum secured debt to total asset value ratio of 0.40 to 1.00; • minimum EBITDA (earnings before interest, taxes, depreciation, amortization or extraordinary items) to fixed charges ratio of 1.50 to 1.00; • maximum other recourse debt to total asset value ratio of 0.15 to 1.00; and • maintenance of a minimum tangible net worth (adjusted for accumulated depreciation and amortization) of $372 million plus 75% of the net proceeds from additional equity offerings (as defined). The 2019 Facility also contains customary events of default with customary notice and cure, including, without limitation, nonpayment, breach of covenant, misrepresentation of representations and warranties in a material respect, cross-default to other major indebtedness, change of control, bankruptcy and loss of REIT tax status. If an event of default occurs and is continuing under the 2019 Facility, the lenders may, among other things, terminate their commitments under the 2019 Facility and require the immediate payment of all amounts owed thereunder.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	(in thousands) Balance at Charged to Deductions Balance at Beginning Costs and from End of Description of Year Expense Reserves Year Allowance for doubtful accounts: Year ended December 31, 2018 $ 8,608 $ 1,391 $ (253 ) $ 9,746 Year ended December 31, 2017 7,133 2,340 (865 ) 8,608 Year ended December 31, 2016 6,647 1,585 (1,099 ) 7,133

Schedule III - Real Estate and

Schedule III - Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
Schedule III - Real Estate and Accumulated Depreciation	Costs Capitalized Subsequent Gross Amount at which Carried at Initial Cost (in thousands) to Acquisition (in thousands) End of Period (in thousands) (1) (2) Building and Improvements Carrying Building and Property Name Land Improvements (net) Costs Land Improvements Total Whitestone Properties: Ahwatukee Plaza $ 5,126 $ 4,086 $ 320 $ — $ 5,126 $ 4,406 $ 9,532 Anthem Marketplace 4,790 17,973 1,132 — 4,790 19,105 23,895 Bissonnet Beltway 415 1,947 469 — 415 2,416 2,831 BLVD Place 63,893 90,942 513 — 63,893 91,455 155,348 The Citadel 472 1,777 2,614 — 472 4,391 4,863 City View Village 2,044 4,149 98 — 2,044 4,247 6,291 Davenport Village 11,367 34,101 1,241 — 11,367 35,342 46,709 Desert Canyon 1,976 1,704 1,796 — 1,976 3,500 5,476 Eldorado Plaza 16,551 30,746 264 — 16,551 31,010 47,561 Fountain Hills Plaza 5,113 15,340 215 — 5,113 15,555 20,668 Fountain Square 5,573 9,828 2,289 — 5,573 12,117 17,690 Fulton Ranch Towne Center 7,604 22,612 2,226 — 7,604 24,838 32,442 Gilbert Tuscany Village 1,767 3,233 1,591 — 1,767 4,824 6,591 Gilbert Tuscany Village Hard Corner 856 794 168 — 856 962 1,818 Heritage Trace Plaza 6,209 13,821 377 — 6,209 14,198 20,407 Headquarters Village 7,171 18,439 1,002 — 7,171 19,441 26,612 Keller Place 5,977 7,577 703 — 5,977 8,280 14,257 Kempwood Plaza 733 1,798 1,989 — 733 3,787 4,520 La Mirada 12,853 24,464 834 — 12,853 25,298 38,151 Lion Square 1,546 4,289 4,455 — 1,546 8,744 10,290 The Marketplace at Central 1,305 5,324 1,330 — 1,305 6,654 7,959 Market Street at DC Ranch 9,710 26,779 4,876 — 9,710 31,655 41,365 Mercado at Scottsdale Ranch 8,728 12,560 1,548 — 8,728 14,108 22,836 Paradise Plaza 6,155 10,221 1,266 — 6,155 11,487 17,642 Parkside Village North 3,877 8,629 199 — 3,877 8,828 12,705 Parkside Village South 5,562 27,154 160 — 5,562 27,314 32,876 Pima Norte 1,086 7,162 2,149 517 1,086 — 9,828 — 10,914 Pinnacle of Scottsdale 6,648 22,466 1,665 — 6,648 24,131 30,779 Pinnacle of Scottsdale Phase II 883 4,659 1,998 592 883 — 7,249 — 8,132 The Promenade at Fulton Ranch 5,198 13,367 661 — 5,198 14,028 19,226 Providence 918 3,675 2,321 — 918 5,996 6,914 Quinlan Crossing 9,561 28,683 640 — 9,561 29,323 38,884 Seville 6,913 25,518 567 — 6,913 26,085 32,998 Shaver 184 633 82 — 184 715 899 Shops at Pecos Ranch 3,781 15,123 744 — 3,781 15,867 19,648 Shops at Starwood 4,093 11,487 415 — 4,093 11,902 15,995 Shops at Starwood Phase III 1,818 7,069 2,045 1,097 1,818 10,211 12,029 The Shops at Williams Trace 5,920 14,297 599 — 5,920 14,896 20,816 South Richey 778 2,584 1,917 — 778 4,501 5,279 Spoerlein Commons 2,340 7,296 840 — 2,340 8,136 10,476 The Strand at Huebner Oaks 5,805 12,335 383 — 5,805 12,718 18,523 SugarPark Plaza 1,781 7,125 1,059 — 1,781 8,184 9,965 Sunridge 276 1,186 606 — 276 1,792 2,068 Sunset at Pinnacle Peak 3,610 2,734 736 — 3,610 3,470 7,080 Terravita Marketplace 7,171 9,392 992 — 7,171 10,384 17,555 Town Park 850 2,911 403 — 850 3,314 4,164 Village Square at Dana Park 10,877 40,250 3,331 — 10,877 43,581 54,458 Westchase 423 1,751 3,270 — 423 5,021 5,444 Costs Capitalized Subsequent Gross Amount at which Carried at Initial Cost (in thousands) to Acquisition (in thousands) End of Period (in thousands) (1) (2) Building and Improvements Carrying Building and Property Name Land Improvements (net) Costs Land Improvements Total Williams Trace Plaza 6,800 14,003 381 — 6,800 14,384 21,184 Windsor Park 2,621 10,482 8,490 — 2,621 18,972 21,593 Woodlake Plaza 1,107 4,426 2,543 — 1,107 6,969 8,076 Total Whitestone Properties $ 288,815 $ 670,901 $ 72,512 $ 2,206 $ 288,815 $ 745,619 $ 1,034,434 Land Held for Development: Anthem Marketplace $ 204 $ — $ — $ — $ 204 $ — $ 204 BLVD Place Phase II-B 10,500 — 1,155 — 10,500 1,155 11,655 Dana Park Development 4,000 — 25 — 4,000 25 4,025 Eldorado Plaza Development 911 — 28 — 911 28 939 Fountain Hills 277 — — — 277 — 277 Market Street at DC Ranch 704 — — — 704 — 704 Total - Land Held for Development $ 16,596 $ — $ 1,208 $ — $ 16,596 $ 1,208 $ 17,804 Grand Totals - Whitestone Properties $ 305,411 $ 670,901 $ 73,720 $ 2,206 $ 305,411 $ 746,827 — $ 1,052,238 Accumulated Depreciation Date of Date Depreciation Property Name Encumbrances (in thousands) Construction Acquired Life Whitestone Properties: Ahwatukee Plaza $ 823 8/16/2011 5-39 years Anthem Marketplace (4) 2,659 6/28/2013 5-39 years Bissonnet Beltway 1,866 1/1/1999 5-39 years BLVD Place (5) 3,740 5/26/2017 5-39 years The Citadel 1,757 9/28/2010 5-39 years City View Village 415 3/31/2015 5-39 years Davenport Village 3,498 5/27/2015 5-39 years Desert Canyon 638 4/13/2011 5-39 years Eldorado Plaza 1,257 5/3/2017 5-39 years Fountain Hills Plaza 2,167 10/7/2013 5-39 years Fountain Square 2,293 9/21/2012 5-39 years Fulton Ranch Towne Center 2,561 11/5/2014 5-39 years Gilbert Tuscany Village 1,453 6/28/2011 5-39 years Gilbert Tuscany Village Hard Corner 75 8/28/2015 5-39 years Heritage Trace Plaza 1,713 7/1/2014 5-39 years Headquarters Village (6) 3,082 3/28/2013 5-39 years Keller Place 715 8/26/2015 5-39 years Kempwood Plaza 1,592 2/2/1999 5-39 years La Mirada 1,484 9/30/2016 5-39 years Lion Square 4,691 1/1/2000 5-39 years The Marketplace at Central 1,698 11/1/2010 5-39 years Market Street at DC Ranch 5,348 12/5/2013 5-39 years Mercado at Scottsdale Ranch 2,100 6/19/2013 5-39 years Paradise Plaza 2,097 8/8/2012 5-39 years Parkside Village North 814 7/2/2015 5-39 years Parkside Village South 2,479 7/2/2015 5-39 years Pima Norte 2,822 10/4/2007 5-39 years Pinnacle of Scottsdale (7) 4,648 12/22/2011 5-39 years Pinnacle of Scottsdale Phase II 598 3/31/2017 5-39 years The Promenade at Fulton Ranch 1,475 11/5/2014 5-39 years Providence 2,261 3/30/2001 5-39 years Quinlan Crossing 2,525 8/26/2015 5-39 years Seville 1,541 9/30/2016 5-39 years Shaver 358 12/17/1999 5-39 years Shops at Pecos Ranch (8) 2,608 12/28/2012 5-39 years Shops at Starwood (9) 2,250 12/28/2011 5-39 years Shops at Starwood Phase III 652 12/31/2016 5-39 years The Shops at Williams Trace 1,590 12/24/2014 5-39 years South Richey 2,319 8/25/1999 5-39 years Spoerlein Commons 2,116 1/16/2009 5-39 years The Strand at Huebner Oaks 1,486 9/19/2014 5-39 years SugarPark Plaza 3,010 9/8/2004 5-39 years Sunridge 886 1/1/2002 5-39 years Sunset at Pinnacle Peak 729 5/29/2012 5-39 years Terravita Marketplace (10) 2,002 8/8/2011 5-39 years Town Park 2,086 1/1/1999 5-39 years Village Square at Dana Park (11) 7,421 9/21/2012 5-39 years Westchase 2,130 1/1/2002 5-39 years Accumulated Depreciation Date of Date Depreciation Property Name Encumbrances (in thousands) Construction Acquired Life Williams Trace Plaza 1,519 12/24/2014 5-39 years Windsor Park 8,638 12/16/2003 5-39 years Woodlake Plaza (12) 2,615 3/14/2005 5-39 years $ 113,300 Land Held for Development: Anthem Marketplace $ — 6/28/2013 Land - Not Depreciated BLVD Place Phase II-B — 5/26/2017 Land - Not Depreciated Dana Park Development — 9/21/2012 Land - Not Depreciated Eldorado Plaza Development — 12/29/2017 Land - Not Depreciated Fountain Hills — 10/7/2013 Land - Not Depreciated Market Street at DC Ranch — 12/5/2013 Land - Not Depreciated Total - Land Held For Development $ — Grand Totals - Whitestone Properties $ 113,300 (1) Reconciliations of total real estate carrying value for the three years ended December 31, follows: ( in thousands) 2018 2017 2016 Balance at beginning of period $ 1,149,454 $ 920,310 $ 835,538 Cumulative effect of accounting change for adoption of ASU 2017-05. (95,146 ) — — Additions during the period: Acquisitions — 213,545 69,749 Improvements 11,638 17,575 22,036 (83,508 ) 231,120 91,785 Deductions - cost of real estate sold or retired (13,708 ) (1,976 ) (7,013 ) Balance at close of period $ 1,052,238 $ 1,149,454 $ 920,310 (2) The aggregate cost of real estate (in thousands) for federal income tax purposes is $1,019,001 . (3) Includes (i) new acquisitions, through the earlier of attainment of 90% occupancy or 18 months of ownership, and (ii) properties that are undergoing significant redevelopment or re-tenanting. (4) This property secures a $15.1 million mortgage note. (5) This property secures a $80.0 million mortgage note. (6) This property secures a $19.0 million mortgage note. (7) This property secures a $14.1 million mortgage note. (8) This property secures a $14.0 million mortgage note. (9) This property secures a $14.3 million mortgage note. (10) This property secures a $10.5 million mortgage note. (11) This property secures a $2.6 million mortgage note. (12) This property secures a $6.5 million mortgage note. (13) These properties secure a $37.0 million mortgage note. (14) This property secures a $16.5 million mortgage note.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Basis of Consolidation	Noncontrolling Interests. Noncontrolling interests are the portion of equity in a subsidiary not attributable to a parent. The ownership interests not held by the parent are considered noncontrolling interests. Accordingly, we have reported noncontrolling interests in equity on the consolidated balance sheets but separate from Whitestone’s equity. On the consolidated statements of operations and comprehensive income, subsidiaries are reported at the consolidated amount, including both the amount attributable to Whitestone and noncontrolling interests. Consolidated statements of changes in equity are included for both quarterly and annual financial statements, including beginning balances, activity for the period and ending balances for shareholders’ equity, noncontrolling interests and total equity. Basis of Consolidation. We are the sole general partner of the Operating Partnership and possess full legal control and authority over the operations of the Operating Partnership. As of December 31, 2018 , 2017 and 2016 , we owned a majority of the partnership interests in the Operating Partnership. Consequently, the accompanying consolidated financial statements include the accounts of the Operating Partnership. Noncontrolling interest in the accompanying consolidated financial statements represents the share of equity and earnings of the Operating Partnership allocable to holders of partnership interests other than us. Net income or loss is allocated to noncontrolling interests based on the weighted-average percentage ownership of the Operating Partnership during the year. Issuance of additional common shares of beneficial interest in Whitestone (the “common shares”) and units of limited partnership interest in the Operating Partnership that are convertible into cash or, at our option, common shares on a one -for- one basis (the “OP units”) changes the percentage of ownership interests of both the noncontrolling interests and Whitestone.
Profit-sharing Method	Profit-sharing Method. In accordance with the Financial Accounting Standards Board’s (“FASB”) guidance applicable to sales of real estate or interests therein, specifically FASB Accounting Standards Codification (“ASC”) 360-20, “ Real Estate Sales, ” Topic 606, “ Revenue from Contracts with Customers ” and ASC 610, “ Other Income–Gains and Losses from the Derecognition of Nonfinancial Assets ,” we did not recognize the sale of assets to Pillarstone OP in the Contribution (as defined in Note 5) and accounted for the transaction under the profit-sharing method for the year ended December 31, 2017. We recognized Pillarstone OP’s real estate assets and notes payables in our consolidated balance sheets. Additionally, the profits and losses of Pillarstone OP not attributable to the Company were reported as profit sharing expense. As a result of the adoption of Topic 606 and ASC 610, the Company derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and recognized the Company’s investment in Pillarstone OP under the equity method.
Equity Method	Equity Method. For the year ended December 31, 2017, Pillarstone OP was accounted under the profit-sharing method. As a result of the adoption of Topic 606 and ASC 610, the Company derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and recognized the Company’s investment in Pillarstone OP under the equity method. See Note 5 and Note 19 for additional disclosure on Pillarstone OP. As of December 31, 2018, we, through our investment in Pillarstone OP, owned a majority interest in 11 properties that do not meet our Community Centered Property® strategy containing approximately 1.3 million square feet of GLA. We own 81.4% of the total outstanding units of Pillarstone OP. We also manage the day-to-day operations of Pillarstone OP. In this Annual Report on Form 10-K, unless otherwise indicated, we do not include the Pillarstone Properties when we refer to our properties.
Basis of Accounting	Basis of Accounting. Our financial records are maintained on the accrual basis of accounting whereby revenues are recognized when earned and expenses are recorded when incurred.
Use of Estimates	Use of Estimates. The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates that we use include the estimated fair values of properties acquired, the estimated useful lives for depreciable and amortizable assets and costs, the estimated allowance for doubtful accounts, the estimated fair value of interest rate swaps and the estimates supporting our impairment analysis for the carrying values of our real estate assets. Actual results could differ from those estimates.
Reclassifications	Reclassifications. We have reclassified certain prior year amounts in the accompanying consolidated financial statements in order to be consistent with the current fiscal year presentation.
Restricted Cash	Restricted Cash. We classify all cash pledged as collateral to secure certain obligations and all cash whose use is limited as restricted cash. During 2015, pursuant to the terms of our $15.1 million 4.99% Note, due January 6, 2024, which is collateralized by our Anthem Marketplace property, we were required by the lenders thereunder to establish a cash management account controlled by the lenders to collect all amounts generated by our Anthem Marketplace property in order to collateralize such promissory note.
Share-Based Compensation	Share-Based Compensation. From time to time, we award nonvested restricted common share awards or restricted common share unit awards, which may be converted into common shares, to executive officers and employees under our 2008 Long-Term Equity Incentive Ownership Plan (the “2008 Plan”). The vast majority of the awarded shares and units vest when certain performance conditions are met. We recognize compensation expense when achievement of the performance conditions is probable based on management’s most recent estimates using the fair value of the shares as of the grant date.
Revenue Recognition	Revenue Recognition. All leases on our properties are classified as operating leases, and the related rental income is recognized on a straight-line basis over the terms of the related leases. Differences between rental income earned and amounts due per the respective lease agreements are capitalized or charged, as applicable, to accrued rents and accounts receivable. Percentage rents are recognized as rental income when the thresholds upon which they are based have been met. Recoveries from tenants for taxes, insurance, and other operating expenses are recognized as revenues in the period the corresponding costs are incurred. We have established an allowance for doubtful accounts against the portion of tenant accounts receivable which is estimated to be uncollectible.
Cash and Cash Equivalents	Cash and Cash Equivalents. We consider all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. Cash and cash equivalents as of December 31, 2018 and 2017 consisted of demand deposits at commercial banks and brokerage accounts. We may have net book credit balances in our primary disbursement accounts at the end of a reporting period. We classify such credit balances as accounts payable in our consolidated balance sheets as checks presented for payment to these accounts are not payable by our banks under overdraft arrangements, and, therefore, do not represent short-term borrowings. As of December 31, 2018 and 2017 , there were net book credit balances of $0.0 and $0.8 million , respectively, in our primary disbursement accounts that were classified as accounts payable on our consolidated balance sheets.
Marketable Securities	Marketable Securities. We classify our existing marketable equity securities as available-for-sale in accordance with the Financial Accounting Standards Board’s (“FASB”) Investments-Debt and Equity Securities guidance. These securities are carried at fair value with unrealized gains and losses reported in equity as a component of accumulated other comprehensive income or loss. The fair value of the marketable securities is determined using Level 1 inputs under FASB Accounting Standards Codification (“ASC”) 820, “ Fair Value Measurements and Disclosures.” Level 1 inputs represent quoted prices available in an active market for identical investments as of the reporting date. Gains and losses on securities sold are based on the specific identification method, and are reported as a component of interest, dividend and other investment income.
Development Properties	Development Properties. Land, buildings and improvements are recorded at cost. Expenditures related to the development of real estate are carried at cost which includes capitalized carrying charges and development costs. Carrying charges (interest and real estate taxes) are capitalized as part of construction in progress. The capitalization of such costs ceases when the property, or any completed portion, becomes available for occupancy. For the year ended December 31, 2018 , approximately $574,000 and $365,000 in interest expense and real estate taxes, respectively, were capitalized. For the year ended December 31, 2017 , approximately $439,000 and $277,000 in interest expense and real estate taxes, respectively, were capitalized. For the year ended December 31, 2016 , approximately $324,000 and $71,000 in interest expense and real estate taxes, respectively, were capitalized.
Acquired Properties and Acquired Lease Intangibles	Acquired Properties and Acquired Lease Intangibles. We allocate the purchase price of the acquired properties to land, building and improvements, identifiable intangible assets and to the acquired liabilities based on their respective fair values at the time of purchase. Identifiable intangibles include amounts allocated to acquired out-of-market leases, the value of in-place leases and customer relationship value, if any. We determine fair value based on estimated cash flow projections that utilize appropriate discount and capitalization rates and available market information. Estimates of future cash flows are based on a number of factors including the historical operating results, known trends and specific market and economic conditions that may affect the property. Factors considered by management in our analysis of determining the as-if-vacant property value include an estimate of carrying costs during the expected lease-up periods considering market conditions, and costs to execute similar leases. In estimating carrying costs, management includes real estate taxes, insurance and estimates of lost rentals at market rates during the expected lease-up periods, tenant demand and other economic conditions. Management also estimates costs to execute similar leases including leasing commissions, tenant improvements, legal and other related expenses. Intangibles related to out-of-market leases and in-place lease value are recorded as acquired lease intangibles and are amortized as an adjustment to rental revenue or amortization expense, as appropriate, over the remaining terms of the underlying leases. Premiums or discounts on acquired out-of-market debt are amortized to interest expense over the remaining term of such debt.
Depreciation	Depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of 5 to 39 years for improvements and buildings, respectively. Tenant improvements are depreciated using the straight-line method over the life of the improvement or remaining term of the lease, whichever is shorter.
Impairment	Impairment. We review our properties for impairment at least annually or whenever events or changes in circumstances indicate that the carrying amount of the assets, including accrued rental income, may not be recoverable through operations. We determine whether an impairment in value has occurred by comparing the estimated future cash flows (undiscounted and without interest charges), including the estimated residual value of the property, with the carrying cost of the property. If impairment is indicated, a loss will be recorded for the amount by which the carrying value of the property exceeds its fair value. Management has determined that there has been no impairment in the carrying value of our real estate assets as of December 31, 2018 .
Accrued Rents and Accounts Receivable	Accrued Rents and Accounts Receivable. Included in accrued rent and accounts receivable are base rents, tenant reimbursements and receivables attributable to recording rents on a straight-line basis. An allowance for the uncollectible portion of accrued rents and accounts receivable is determined based upon customer credit-worthiness (including expected recovery of our claim with respect to any tenants in bankruptcy), historical bad debt levels, and current economic trends. As of December 31, 2018 and 2017 , we had an allowance for uncollectible accounts of $9.7 million and $8.6 million , respectively. As of December 31, 2018 , 2017 and 2016 , we recorded bad debt expense in the amount of $1.4 million , $2.3 million and $1.6 million , respectively, related to tenant receivables that we specifically identified as potentially uncollectible based on our assessment of each tenant’s credit-worthiness. Bad debt expenses and any related recoveries are included in property operation and maintenance expense.
Unamortized Lease Commissions and Loan Costs	Unamortized Lease Commissions and Loan Costs. Leasing commissions are amortized using the straight-line method over the terms of the related lease agreements. Loan costs are amortized on the straight-line method over the terms of the loans, which approximates the interest method. Costs allocated to in-place leases whose terms differ from market terms related to acquired properties are amortized over the remaining life of the respective leases.
Prepaids and Other Assets, Policy	Prepaids and Other Assets. Prepaids and other assets include escrows established pursuant to certain mortgage financing arrangements for real estate taxes and insurance and acquisition deposits which include earnest money deposits on future acquisitions.
Federal Income and State Taxes	Federal Income Taxes. We elected to be taxed as a REIT under the Code beginning with our taxable year ended December 31, 1999. As a REIT, we generally are not subject to federal income tax on income that we distribute to our shareholders. If we fail to qualify as a REIT in any taxable year, we will be subject to federal income tax on our taxable income at regular corporate rates. We believe that we are organized and operate in such a manner as to qualify to be taxed as a REIT, and we intend to operate so as to remain qualified as a REIT for federal income tax purposes. State Taxes. We are subject to the Texas Margin Tax, which is computed by applying the applicable tax rate ( 1% for us) to the profit margin, which, generally, will be determined for us as total revenue less a 30% standard deduction. Although the Texas Margin Tax is not considered an income tax, FASB ASC 740, “Income Taxes” (“ASC 740”) applies to the Texas Margin Tax. As of December 31, 2018 , 2017 and 2016 , we recorded a margin tax provision of $0.4 million , $0.4 million and $0.2 million , respectively.
Fair Value of Financial Instruments	Fair Value of Financial Instruments. Our financial instruments consist primarily of cash, cash equivalents, accounts receivable, accounts and notes payable and investments in marketable securities. The carrying value of cash, cash equivalents, accounts receivable and accounts payable are representative of their respective fair values due to their short-term nature. The fair value of our long-term debt, consisting of fixed rate secured notes, variable rate secured notes and an unsecured revolving credit facility aggregate to approximately $618.6 million and $659.6 million as compared to the book value of approximately $619.4 million and $660.9 million as of December 31, 2018 and 2017 , respectively. The fair value of our long-term debt is estimated on a Level 2 basis (as provided by ASC 820, “Fair Value Measurements and Disclosures ” (“ASC 820”)), using a discounted cash flow analysis based on the borrowing rates currently available to us for loans with similar terms and maturities, discounting the future contractual interest and principal payments. The fair value of our loan guarantee to Pillarstone OP is estimated on a Level 3 basis (as provided by ASC 820, “ Fair Value Measurements and Disclosures” ), using a probability-weighted discounted cash flow analysis based on a discount rate, discounting the loan balance. Disclosure about fair value of financial instruments is based on pertinent information available to management as of December 31, 2018 and 2017 . Although management is not aware of any factors that would significantly affect the fair value amounts, such amounts have not been comprehensively revalued for purposes of these financial statements since December 31, 2018 and current estimates of fair value may differ significantly from the amounts presented herein.
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities. We utilize derivative financial instruments, principally interest rate swaps, to manage our exposure to fluctuations in interest rates. We have established policies and procedures for risk assessment, and the approval, reporting and monitoring of derivative financial instruments. We recognize our interest rate swaps as cash flow hedges with the effective portion of the changes in fair value recorded in comprehensive income and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. Any ineffective portion of a cash flow hedge’s change in fair value is recorded immediately into earnings. Our cash flow hedges are determined using Level 2 inputs under ASC 820. Level 2 inputs represent quoted prices in active markets for similar assets or liabilities; quoted prices in markets that are not active; and model-derived valuations whose inputs are observable. As of December 31, 2018 , we consider our cash flow hedges to be highly effective.
Concentration of Risk	Concentration of Risk. Substantially all of our revenues are obtained from office, warehouse and retail locations in the Austin, Chicago, Dallas-Fort Worth, Houston, Phoenix and San Antonio metropolitan areas. We maintain cash accounts in major U.S. financial institutions. The terms of these deposits are on demand to minimize risk. The balances of these accounts sometimes exceed the federally insured limits, although no losses have been incurred in connection with these deposits.
Recent Accounting Pronouncements	Recent Accounting Pronouncements. In May 2014, the FASB issued guidance, as amended in subsequent updates, establishing a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most of the existing revenue recognition guidance. The standard also requires an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and also requires certain additional disclosures. This guidance became effective for the reporting periods beginning on or after December 15, 2017, and interim periods within those fiscal years. We adopted this guidance on a modified retrospective basis beginning January 1, 2018 and have derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and have recognized the Company’s investment in Pillarstone OP under the equity method of accounting. The Company made an adjustment which decreased the Company’s accumulated deficit as of January 1, 2018 by $19.1 million . See Note 5 and Note 19 for further details. In February 2016, the FASB issued guidance requiring lessees to recognize a lease liability and a right-of-use asset for all leases. Lessor accounting will remain largely unchanged with the exception of changes related to costs which qualify as initial direct costs. The guidance will also require new qualitative and quantitative disclosures to help financial statement users better understand the timing, amount and uncertainty of cash flows arising from leases. This guidance is effective for reporting periods beginning on or after December 15, 2018, with early adoption permitted. We adopted the guidance and its related amendments as of January 1, 2019 using the transition practical expedient which allows us to recognize a cumulative-effect adjustment to the opening balance of retained earnings as of the adoption date as well as other elected practical expedients. Additionally, we have elected the optional transition practical expedient for lessors that permits lessors to make an accounting policy election to not separate nonlease components from the associated lease components, if the following two criteria are met: (1) the timing and pattern of transfer of the lease and nonlease components are the same and (2) the lease component would be classified as an operating lease if accounted for separately. As a result, leases where we are the lessor are accounted for in a similar manner to existing standards with the underlying leased asset being reported and recognized as a real estate asset. We have identified our lease commitments and finalized our evaluation on our consolidated financial statements and on our internal accounting processes. Substantially all of our real estate lessor commitments continued to be accounted for as operating leases, and the new leasing standard did not have a material impact on rental revenues. Our lessee operating lease commitments are subject to the standard and recognized as operating lease liabilities and right-of-use assets upon adoption. Our adoption of the new leasing standard did not have a material impact on our consolidated financial statements. Upon our adoption of the guidance as of January 1, 2019, we increased lease liabilities and corresponding right-of-use assets. Such adoption resulted in certain costs (primarily legal costs related to lease negotiations) being expensed rather than capitalized. We capitalized $406,000 in legal related costs for the year ended December 31, 2018 . These transition adjustments did not have a material impact on our consolidated balance sheet. Additionally, this guidance did not have a material impact on our consolidated statement of income upon adoption. In November 2016, the FASB issued guidance requiring that the statement of cash flows explain the change during the period in the total cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. This guidance became effective for the reporting periods beginning on or after December 15, 2017, and interim periods within those fiscal years. We adopted this guidance effective January 1, 2018, and we have reconciled cash and cash equivalents and restricted cash and restricted cash equivalents on a retrospective basis, whereas under the previous guidance, we reported restricted cash and restricted cash equivalents under cash flows from financing activities. In January 2017, the FASB issued guidance clarifying the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or dispositions) of assets or businesses. This guidance became effective for the reporting periods beginning on or after December 15, 2017, and interim periods within those fiscal years. We adopted this guidance on a prospective basis beginning January 1, 2018 and believe the majority of our future acquisitions will qualify as asset acquisitions and the associated transaction costs will be capitalized as opposed to expensed under previous guidance. In February 2017, the FASB issued guidance clarifying the scope of asset derecognition guidance, adds guidance for partial sales of nonfinancial assets and clarifies recognizing gains and losses from the transfer of nonfinancial assets in contracts with noncustomers. This guidance became effective for the reporting periods beginning on or after December 15, 2017, and interim periods within those fiscal years. We adopted this guidance on a modified retrospective basis beginning January 1, 2018 and have derecognized the underlying assets and liabilities associated with the Contribution as of January 1, 2018 and have recognized the Company’s investment in Pillarstone OP under the equity method of accounting. The Company made an adjustment which decreased the Company’s accumulated deficit as of January 1, 2018 by $19.1 million . See Note 5 and Note 19 for further details.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Schedule of Error Corrections and Prior Period Adjustments	The following table presents the effects of the immaterial error correction on the consolidated statements of operations and comprehensive income (in thousands): Year Ended December 31, 2017 As Reported Correction of Error As Adjusted Net income $ 8,866 $ (278 ) $ 8,588 Net income attributable to noncontrolling interests 532 (278 ) 254 Year Ended December 31, 2016 As Reported Correction of Error As Adjusted Net income $ 8,128 $ (15 ) $ 8,113 Net income attributable to noncontrolling interests 197 (15 ) 182 As a part of the Quarterly Restatement, the Company has made the following adjustments to the 2018 Quarterly Financial Statements. CONSOLIDATED BALANCE SHEETS (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated ASSETS Real estate assets, at cost Property $ 1,148,176 $ (96,192 ) $ 1,051,984 Accumulated depreciation (135,599 ) 36,811 (98,788 ) Total real estate assets 1,012,577 (59,381 ) 953,196 Investment in real estate partnership — 19,298 19,298 Cash and cash equivalents 9,337 (2,361 ) 6,976 Restricted cash 257 — 257 Escrows and acquisition deposits 6,690 (1,133 ) 5,557 Accrued rents and accounts receivable, net of allowance for doubtful accounts 24,675 (2,866 ) 21,809 Receivable due from related party — 894 894 Financed receivable due from related party — 15,473 15,473 Unamortized lease commissions and loan costs 8,260 (1,238 ) 7,022 Prepaid expenses and other assets 9,451 (10 ) 9,441 Total assets $ 1,071,247 $ (31,324 ) $ 1,039,923 LIABILITIES AND EQUITY Liabilities: Notes payable $ 668,526 $ (48,540 ) $ 619,986 Accounts payable and accrued expenses 30,198 (1,576 ) 28,622 Payable due to related party — 699 699 Tenants’ security deposits 7,028 (1,262 ) 5,766 Dividends and distributions payable 11,489 — 11,489 Total liabilities 717,241 (50,679 ) 666,562 Commitments and contingencies: — — — Equity: Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of March 31, 2018 — — — Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,179,540 issued and outstanding as of March 31, 2018 38 — 38 Additional paid-in capital 522,730 — 522,730 Accumulated deficit (184,853 ) 19,272 (165,581 ) Accumulated other comprehensive gain 5,528 — 5,528 Total Whitestone REIT shareholders’ equity 343,443 19,272 362,715 Redeemable operating partnership units 10,642 4 10,646 Noncontrolling interest in subsidiary (79 ) 79 — Total equity 354,006 19,355 373,361 Total liabilities and equity $ 1,071,247 $ (31,324 ) $ 1,039,923 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED BALANCE SHEETS (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated ASSETS Real estate assets, at cost Property $ 1,149,528 $ (96,757 ) $ 1,052,771 Accumulated depreciation (141,442 ) 37,746 (103,696 ) Total real estate assets 1,008,086 (59,011 ) 949,075 Investment in real estate partnership 4,419 15,465 19,884 Cash and cash equivalents 3,125 — 3,125 Restricted cash 213 — 213 Escrows and acquisition deposits 6,515 — 6,515 Accrued rents and accounts receivable, net of allowance for doubtful accounts 20,464 — 20,464 Receivable due from related party — 772 772 Financed receivable due from related party — 15,473 15,473 Unamortized lease commissions and loan costs 6,911 — 6,911 Prepaid expenses and other assets 10,217 — 10,217 Total assets $ 1,059,950 $ (27,301 ) $ 1,032,649 LIABILITIES AND EQUITY Liabilities: Notes payable $ 667,595 $ (48,241 ) $ 619,354 Accounts payable and accrued expenses 29,157 347 29,504 Payable due to related party — 1,067 1,067 Tenants’ security deposits 5,769 — 5,769 Dividends and distributions payable 11,628 — 11,628 Total liabilities 714,149 (46,827 ) 667,322 Commitments and contingencies: — — — Equity: Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of June 30, 2018 — — — Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,743,829 issued and outstanding as of June 30, 2018 38 — 38 Additional paid-in capital 524,191 — 524,191 Accumulated deficit (194,520 ) 19,516 (175,004 ) Accumulated other comprehensive gain 6,430 — 6,430 Total Whitestone REIT shareholders’ equity 336,139 19,516 355,655 Noncontrolling interest in subsidiary 9,662 10 9,672 Total equity 345,801 19,526 365,327 Total liabilities and equity $ 1,059,950 $ (27,301 ) $ 1,032,649 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED BALANCE SHEETS (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated ASSETS Real estate assets, at cost Property $ 1,146,951 $ (97,636 ) $ 1,049,315 Accumulated depreciation (145,807 ) 38,642 (107,165 ) Total real estate assets 1,001,144 (58,994 ) 942,150 Investment in real estate partnership 2,770 17,616 20,386 Cash and cash equivalents 9,389 — 9,389 Restricted cash 91 — 91 Escrows and acquisition deposits 7,702 — 7,702 Accrued rents and accounts receivable, net of allowance for doubtful accounts 21,906 (12 ) 21,894 Receivable due from related party — 308 308 Financed receivable due from related party — 14,473 14,473 Unamortized lease commissions and loan costs 6,847 — 6,847 Prepaid expenses and other assets 10,597 — 10,597 Total assets $ 1,060,446 $ (26,609 ) $ 1,033,837 LIABILITIES AND EQUITY Liabilities: Notes payable $ 666,624 $ (47,939 ) $ 618,685 Accounts payable and accrued expenses 32,846 332 33,178 Payable due to related party — 1,276 1,276 Tenants’ security deposits 5,920 — 5,920 Dividends and distributions payable 11,600 — 11,600 Total liabilities 716,990 (46,331 ) 670,659 Commitments and contingencies: — — — Equity: Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of September 30, 2018 — — — Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,772,105 issued and outstanding as of September 30, 2018 38 — 38 Additional paid-in capital 525,780 — 525,780 Accumulated deficit (198,199 ) 19,706 (178,493 ) Accumulated other comprehensive gain 7,034 — 7,034 Total Whitestone REIT shareholders’ equity 334,653 19,706 354,359 Noncontrolling interest in subsidiary 8,803 16 8,819 Total equity 343,456 19,722 363,178 Total liabilities and equity $ 1,060,446 $ (26,609 ) $ 1,033,837 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited March 31, 2018 Previously Reported (1) Adjustments Restated Property revenues Rental revenues $ 24,946 $ (3,274 ) $ 21,672 Other revenues 8,650 (537 ) 8,113 Total property revenues 33,596 (3,811 ) 29,785 Property expenses Property operation and maintenance 5,708 (852 ) 4,856 Real estate taxes 4,657 (681 ) 3,976 Total property expenses 10,365 (1,533 ) 8,832 Other expenses (income) General and administrative 6,314 13 6,327 Depreciation and amortization 7,221 (947 ) 6,274 Equity in earnings of real estate partnership — (674 ) (674 ) Interest expense 6,501 (528 ) 5,973 Interest, dividend and other investment income (99 ) (158 ) (257 ) Total other expense 19,937 (2,294 ) 17,643 Income before gain (loss) on sale or disposal of properties or assets, and income taxes 3,294 16 3,310 Provision for income taxes (129 ) 19 (110 ) Gain on sale of properties 266 (17 ) 249 Loss on sale or disposal of assets (197 ) 17 (180 ) Net income 3,234 35 3,269 Redeemable operating partnership units 84 4 88 Non-controlling interests in Consolidated Partnership 122 (122 ) — Less: Net income attributable to noncontrolling interests 206 (118 ) 88 Net income attributable to Whitestone REIT $ 3,028 $ 153 $ 3,181 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated Basic Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.08 $ 0.00 $ 0.08 Diluted Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.07 $ 0.01 $ 0.08 Weighted average number of common shares outstanding: Basic 39,066 — 39,066 Diluted 40,088 — 40,088 Distributions declared per common share / OP unit $ 0.2850 $ — $ 0.2850 Consolidated Statements of Comprehensive Income Net income $ 3,234 $ 35 $ 3,269 Other comprehensive gain Unrealized gain on cash flow hedging activities 2,645 — 2,645 Unrealized gain on available-for-sale marketable securities 18 — 18 Comprehensive income 5,897 35 5,932 Less: Net income attributable to noncontrolling interests 206 (118 ) 88 Less: Comprehensive gain attributable to noncontrolling interests 71 — 71 Comprehensive income attributable to Whitestone REIT $ 5,620 $ 153 $ 5,773 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Three Months Ended Unaudited Six Months Ended Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Property revenues Rental revenues $ 24,650 $ (3,268 ) $ 21,382 $ 49,596 $ (6,542 ) $ 43,054 Other revenues 8,422 (331 ) 8,091 17,072 (868 ) 16,204 Total property revenues 33,072 (3,599 ) 29,473 66,668 (7,410 ) 59,258 Property expenses Property operation and maintenance 5,838 (821 ) 5,017 11,546 (1,673 ) 9,873 Real estate taxes 4,485 (580 ) 3,905 9,142 (1,261 ) 7,881 Total property expenses 10,323 (1,401 ) 8,922 20,688 (2,934 ) 17,754 Other expenses (income) General and administrative 6,624 54 6,678 12,938 67 13,005 Depreciation and amortization 7,396 (1,103 ) 6,293 14,617 (2,050 ) 12,567 Equity in earnings of real estate partnership — (586 ) (586 ) — (1,260 ) (1,260 ) Interest expense 6,854 (541 ) 6,313 13,355 (1,069 ) 12,286 Interest, dividend and other investment income (119 ) (165 ) (284 ) (218 ) (323 ) (541 ) Total other expense 20,755 (2,341 ) 18,414 40,692 (4,635 ) 36,057 Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense 1,994 143 2,137 5,288 159 5,447 Provision for income taxes (84 ) 25 (59 ) (213 ) 44 (169 ) Gain on sale of properties — — — 266 (17 ) 249 Profit sharing expense (81 ) 81 — (203 ) 203 — Loss on sale or disposal of assets (74 ) 1 (73 ) (271 ) 18 (253 ) Net income 1,755 250 2,005 4,867 407 5,274 Less: Net income attributable to noncontrolling interests 45 6 51 128 10 138 Net income attributable to Whitestone REIT $ 1,710 $ 244 $ 1,954 $ 4,739 $ 397 $ 5,136 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Unaudited Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Basic Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.04 $ 0.01 $ 0.05 $ 0.12 $ 0.01 $ 0.13 Diluted Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.04 $ 0.01 $ 0.05 $ 0.11 $ 0.01 $ 0.12 Weighted average number of common shares outstanding: Basic 39,204 — 39,204 39,136 — 39,136 Diluted 40,679 — 40,679 40,519 — 40,519 Distributions declared per common share / OP unit $ 0.2850 $ — $ 0.2850 $ 0.5700 $ — $ 0.5700 Consolidated Statements of Comprehensive Income Net income $ 1,755 $ 250 $ 2,005 $ 4,867 $ 407 $ 5,274 Other comprehensive gain Unrealized gain on cash flow hedging activities 913 — 913 3,558 — 3,558 Unrealized gain on available-for-sale marketable securities — — — 18 — 18 Comprehensive income 2,668 250 2,918 8,443 407 8,850 Less: Net income attributable to noncontrolling interests 45 6 51 128 10 138 Less: Comprehensive gain attributable to noncontrolling interests 23 — 23 94 — 94 Comprehensive income attributable to Whitestone REIT $ 2,600 $ 244 $ 2,844 $ 8,221 $ 397 $ 8,618 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Three Months Ended Unaudited Nine Months Ended Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Property revenues Rental revenues $ 25,256 $ (3,292 ) $ 21,964 $ 74,852 $ (9,834 ) $ 65,018 Other revenues 9,340 (600 ) 8,740 26,412 (1,468 ) 24,944 Total property revenues 34,596 (3,892 ) 30,704 101,264 (11,302 ) 89,962 Property expenses Property operation and maintenance 6,374 (922 ) 5,452 17,920 (2,595 ) 15,325 Real estate taxes 5,253 (874 ) 4,379 14,395 (2,135 ) 12,260 Total property expenses 11,627 (1,796 ) 9,831 32,315 (4,730 ) 27,585 Other expenses (income) General and administrative 4,959 23 4,982 17,897 90 17,987 Depreciation and amortization 7,483 (1,006 ) 6,477 22,100 (3,056 ) 19,044 Equity in earnings of real estate partnership — (502 ) (502 ) — (1,762 ) (1,762 ) Interest expense 6,951 (532 ) 6,419 20,306 (1,601 ) 18,705 Interest, dividend and other investment income (84 ) (167 ) (251 ) (302 ) (490 ) (792 ) Total other expense 19,309 (2,184 ) 17,125 60,001 (6,819 ) 53,182 Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense 3,660 88 3,748 8,948 247 9,195 Provision for income taxes (115 ) 23 (92 ) (328 ) 67 (261 ) Gain on sale of properties 4,380 — 4,380 4,646 (17 ) 4,629 Profit sharing expense (73 ) 73 — (276 ) 276 — Loss on sale or disposal of assets (15 ) 12 (3 ) (286 ) 30 (256 ) Net income 7,837 196 8,033 12,704 603 13,307 Less: Net income attributable to noncontrolling interests 193 5 198 326 16 342 Net income attributable to Whitestone REIT $ 7,644 $ 191 $ 7,835 $ 12,378 $ 587 $ 12,965 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Unaudited Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Basic Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.19 $ 0.01 $ 0.20 $ 0.31 $ 0.02 $ 0.33 Diluted Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.19 $ 0.00 $ 0.19 $ 0.30 $ 0.01 $ 0.31 Weighted average number of common shares outstanding: Basic 39,327 — 39,327 39,200 — 39,200 Diluted 40,635 — 40,635 40,541 — 40,541 Distributions declared per common share / OP unit $ 0.2850 $ — $ 0.2850 $ 0.8550 $ — $ 0.8550 Consolidated Statements of Comprehensive Income Net income $ 7,837 $ 196 $ 8,033 $ 12,704 $ 603 $ 13,307 Other comprehensive gain Unrealized gain on cash flow hedging activities 605 — 605 4,163 — 4,163 Unrealized gain on available-for-sale marketable securities — — — 18 — 18 Comprehensive income 8,442 196 8,638 16,885 603 17,488 Less: Net income attributable to noncontrolling interests 193 5 198 326 16 342 Less: Comprehensive gain attributable to noncontrolling interests 15 — 15 107 — 107 Comprehensive income attributable to Whitestone REIT $ 8,234 $ 191 $ 8,425 $ 16,452 $ 587 $ 17,039 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited Previously Reported (1) Adjustments Restated Cash flows from operating activities: Net income $ 3,234 $ 35 $ 3,269 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 7,221 (947 ) 6,274 Amortization of deferred loan costs 327 (25 ) 302 Loss on sale of marketable securities 20 — 20 Loss (gain) on sale or disposal of assets and properties (69 ) — (69 ) Bad debt expense 478 (32 ) 446 Share-based compensation 1,845 — 1,845 Equity in earnings of real estate partnership — (674 ) (674 ) Changes in operating assets and liabilities: Escrows and acquisition deposits 3,414 (1,055 ) 2,359 Accrued rent and accounts receivable (1,649 ) 534 (1,115 ) Receivable due from related party — 110 110 Distributions from real estate partnership — 505 505 Unamortized lease commissions (493 ) 90 (403 ) Prepaid expenses and other assets 494 (57 ) 437 Accounts payable and accrued expenses (8,828 ) 1,531 (7,297 ) Payable due to related party — (980 ) (980 ) Tenants’ security deposits 143 (71 ) 72 Net cash provided by operating activities 6,137 (1,036 ) 5,101 Cash flows from investing activities: Additions to real estate (5,090 ) 1,047 (4,043 ) Proceeds from sales of properties 4,433 — 4,433 Investment in real estate partnership — — — Proceeds from sales of marketable securities 30 — 30 Net cash provided by (used in) investing activities (627 ) 1,047 420 Cash flows from financing activities: Distributions paid to common shareholders (11,145 ) — (11,145 ) Distributions paid to OP unit holders (309 ) — (309 ) Distributions paid to noncontrolling interest in Consolidated Partnership (115 ) 115 — Net proceeds from credit facility 9,000 — 9,000 Repayments of notes payable (903 ) 325 (578 ) Payments of loan origination costs — — — Repurchase of common shares (466 ) — (466 ) Net cash used in financing activities (3,938 ) 440 (3,498 ) Net increase in cash, cash equivalents and restricted cash 1,572 451 2,023 Cash, cash equivalents and restricted cash at beginning of period 8,022 (2,812 ) 5,210 Cash, cash equivalents and restricted cash at end of period $ 9,594 $ (2,361 ) $ 7,233 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Supplemental Disclosures Unaudited Previously Reported (1) Adjustments Restated Supplemental disclosure of cash flow information: Cash paid for interest $ 6,316 $ (510 ) $ 5,806 Non cash investing and financing activities: Financed insurance premiums $ 1,273 $ — $ 1,273 Value of shares issued under dividend reinvestment plan $ 33 $ — $ 33 Value of common shares exchanged for OP units $ 4 $ — $ 4 Change in fair value of available-for-sale securities $ 18 $ — $ 18 Change in fair value of cash flow hedge $ 2,645 $ — $ 2,645 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited Previously Reported (1) Adjustments Restated Cash flows from operating activities: Net income $ 4,867 $ 407 $ 5,274 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 14,617 (2,050 ) 12,567 Amortization of deferred loan costs 653 (50 ) 603 Loss on sale of marketable securities 20 — 20 Loss (gain) on sale or disposal of assets and properties 5 (1 ) 4 Bad debt expense 761 (99 ) 662 Share-based compensation 3,246 — 3,246 Equity in earnings of real estate partnership — (1,260 ) (1,260 ) Changes in operating assets and liabilities: Escrows and acquisition deposits 1,401 — 1,401 Accrued rent and accounts receivable 15 (1 ) 14 Receivable due from related party — 232 232 Distributions from real estate partnership — 505 505 Unamortized lease commissions (852 ) — (852 ) Prepaid expenses and other assets 504 2 506 Accounts payable and accrued expenses (6,370 ) (40 ) (6,410 ) Payable due to related party — (612 ) (612 ) Tenants’ security deposits 75 — 75 Net cash provided by operating activities 18,942 (2,967 ) 15,975 Cash flows from investing activities: Additions to real estate (7,566 ) 1,669 (5,897 ) Proceeds from sales of properties 4,433 — 4,433 Investment in real estate partnership (649 ) 649 — Proceeds from sales of marketable securities 30 — 30 Net cash used in investing activities (3,752 ) 2,318 (1,434 ) Cash flows from financing activities: Distributions paid to common shareholders (22,348 ) — (22,348 ) Distributions paid to OP unit holders (604 ) — (604 ) Payments of exchange offer costs (128 ) — (128 ) Net proceeds from credit facility 9,000 — 9,000 Repayments of notes payable (1,923 ) 649 (1,274 ) Repurchase of common shares (1,059 ) — (1,059 ) Net cash used in financing activities (17,062 ) 649 (16,413 ) Net decrease in cash, cash equivalents and restricted cash (1,872 ) — (1,872 ) Cash, cash equivalents and restricted cash at beginning of period 5,210 — 5,210 Cash, cash equivalents and restricted cash at end of period $ 3,338 $ — $ 3,338 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Supplemental Disclosures Unaudited Previously Reported (1) Adjustments Restated Supplemental disclosure of cash flow information: Cash paid for interest $ 12,377 $ (1,022 ) $ 11,355 Cash paid for taxes $ 392 $ (88 ) $ 304 Non cash investing and financing activities: Disposal of fully depreciated real estate $ 960 $ (56 ) $ 904 Financed insurance premiums $ 1,273 $ — $ 1,273 Value of shares issued under dividend reinvestment plan $ 66 $ — $ 66 Value of common shares exchanged for OP units $ 752 $ — $ 752 Change in fair value of available-for-sale securities $ 18 $ — $ 18 Change in fair value of cash flow hedge $ 3,558 $ — $ 3,558 Reallocation of ownership percentage between parent and subsidiary $ 12 $ — $ 12 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited Previously Reported (1) Adjustments Restated Cash flows from operating activities: Net income $ 12,704 $ 603 $ 13,307 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 22,100 (3,056 ) 19,044 Amortization of deferred loan costs 976 (74 ) 902 Loss on sale of marketable securities 20 — 20 Loss (gain) on sale or disposal of assets and properties (4,360 ) (13 ) (4,373 ) Bad debt expense 1,123 (153 ) 970 Share-based compensation 4,894 — 4,894 Equity in earnings of real estate partnership — (1,762 ) (1,762 ) Changes in operating assets and liabilities: Escrows and acquisition deposits 214 — 214 Accrued rent and accounts receivable (1,736 ) 12 (1,724 ) Receivable due from related party — 696 696 Distributions from real estate partnership — 505 505 Unamortized lease commissions (1,394 ) (2 ) (1,396 ) Prepaid expenses and other assets 618 1 619 Accounts payable and accrued expenses (2,924 ) (55 ) (2,979 ) Accounts payable due to related party — (403 ) (403 ) Tenants’ security deposits 226 — 226 Net cash provided by operating activities 32,461 (3,701 ) 28,760 Cash flows from investing activities: Acquisitions of real estate — — Additions to real estate (11,300 ) 2,567 (8,733 ) Proceeds from sales of properties 12,574 — 12,574 Proceeds from financed receivable due from related party — 1,000 1,000 Investment in real estate partnership 843 (843 ) — Proceeds from sales of marketable securities 30 — 30 Net cash provided by investing activities 2,147 2,724 4,871 Cash flows from financing activities: Distributions paid to common shareholders (33,642 ) — (33,642 ) Distributions paid to OP unit holders (890 ) — (890 ) Payments of exchange offer costs (128 ) — (128 ) Net proceeds from credit facility 9,000 — 9,000 Repayments of notes payable (2,949 ) 977 (1,972 ) Payments of loan origination costs (30 ) — (30 ) Repurchase of common shares (1,699 ) — (1,699 ) Net cash used in financing activities (30,338 ) 977 (29,361 ) Net increase in cash, cash equivalents and restricted cash 4,270 — 4,270 Cash, cash equivalents and restricted cash at beginning of period 5,210 — 5,210 Cash, cash equivalents and restricted cash at end of period $ 9,480 $ — $ 9,480 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Supplemental Disclosures Unaudited Previously Reported (1) Adjustments Restated Supplemental disclosure of cash flow information: Cash paid for interest $ 19,879 $ (1,698 ) $ 18,181 Cash paid for taxes $ 392 $ (88 ) $ 304 Non cash investing and financing activities: Disposal of fully depreciated real estate $ 963 $ (59 ) $ 904 Financed insurance premiums $ 1,273 $ — $ 1,273 Value of shares issued under dividend reinvestment plan $ 101 $ — $ 101 Value of common shares exchanged for OP units $ 1,545 $ — $ 1,545 Change in fair value of available-for-sale securities $ 18 $ — $ 18 Change in fair value of cash flow hedge $ 4,163 $ — $ 4,163 Reallocation of ownership percentage between parent and subsidiary $ 24 $ — $ 24 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018.

Marketable Securities (Tables)

Marketable Securities (Tables)	12 Months Ended
	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-Sale Securities	Available-for-sale securities consist of the following (in thousands): December 31, 2018 Amortized Cost Gains in Accumulated Other Comprehensive Income Losses in Accumulated Other Comprehensive Income Estimated Fair Value Real estate sector common stock $ — $ — $ — $ — Total available-for-sale securities $ — $ — $ — $ — December 31, 2017 Amortized Cost Gains in Accumulated Other Comprehensive Income Losses in Accumulated Other Comprehensive Income Estimated Fair Value Real estate sector common stock $ 50 $ — $ (18 ) $ 32 Total available-for-sale securities $ 50 $ — $ (18 ) $ 32

Real Estate (Tables)

Real Estate (Tables)	12 Months Ended
	Dec. 31, 2018
Real Estate [Abstract]
Schedule of pro forma results of operations	The following unaudited pro forma results summarized below reflect our consolidated results of operations as if our acquisitions for the years ended December 31, 2017 and 2016 were acquired on January 1, 2016 . The unaudited consolidated pro forma results of operations is not necessarily indicative of what the actual results of operations would have been, assuming the transactions had been completed as set forth above, nor do they purport to represent our results of operations for future periods. Year Ended December 31, (in thousands, except per share data) 2017 2016 Total property revenues $ 133,663 $ 129,385 Net income $ 11,322 $ 16,963 Net income attributable to Whitestone REIT (1) $ 10,990 $ 16,583 Basic Earnings Per Share: $ 0.28 $ 0.45 Diluted Earnings Per Share: $ 0.27 $ 0.44 Weighted-average common shares outstanding: Basic (2) 37,933 35,637 Diluted (2) 38,760 36,402 (1) Net income attributable to Whitestone REIT reflects historical ownership percentages and does not reflect the effects of the April 2017 Offering (as defined in Note 14), assuming the sale of the common shares took place on January 1, 2016 , as the related impact on ownership percentage is minimal. (2) Pro forma weighted averages reflect the April 2017 Offering, assuming the sale of the common shares took place on January 1, 2016 .

Investment in Real Estate Par_2

Investment in Real Estate Partnership (Tables)	12 Months Ended
	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Equity Method Investments	Summarized financial information for the Company’s investment in real estate partnership is as follows (in thousands): December 31, 2018 Assets: Real estate, net $ 72,661 Other assets 6,617 Total assets 79,278 Liabilities and equity: Notes payable 47,064 Other liabilities 4,322 Equity 27,892 Total liabilities and equity 79,278 Company’s share of equity 22,717 Cost of investment in excess (deficit) of the Company’s share of underlying net book value 3,519 Carrying value of investment in real estate partnership $ 26,236 Year Ended December 31, 2018 Property revenues $ 17,180 Property expenses (6,687 ) Other expenses (7,848 ) Gain on sale of properties 7,839 Net income $ 10,484 The table below presents the real estate partnership investment in which the Company held an ownership interest (in thousands): The Company’s Investment as of December 31, 2018 Real estate partnership Ownership Interest Pillarstone OP (1)(2) 81.4% $ 26,236 Total real estate partnership (3) 26,236 (1) The Company manages these real estate partnership investments and, where applicable, earns acquisition fees, leasing commissions, property management fees, and asset management fees. (2) As of December 31, 2017 , the Company had a net deferred gain of $18.0 million relating to the sale of properties to Pillarstone OP prior to the adoption of ASU 2017-05. These deferred gains were included in the Company’s investment above. Upon adoption, the Company recorded a cumulative-effect adjustment of $19.1 million to its beginning accumulated deficit as of January 1, 2018 on the Company’s Consolidated Statements of Changes in Equity. (3) Representing 11 property interests and 1.3 million square feet of GLA, as of December 31, 2018 , and 14 property interests and 1.5 million square feet of GLA, as of December 31, 2017 .
Real Estate Investment Financial Statements, Disclosure	The table below presents the Company’s share of net income from its investment in the real estate partnership which is included in equity in earnings of real estate partnership, net on the Company’s Consolidated Statements of Operations and Comprehensive Income (in thousands): Year Ended December 31, 2018 Pillarstone OP $ 8,431 The carrying amounts and classification of certain assets and liabilities for Pillarstone OP under the profit sharing method as of December 31, 2017 and consisted of the following (in thousands): Real estate assets, at cost Property $ 95,146 Accumulated depreciation (35,980 ) Total real estate assets 59,166 Investment in real estate partnership 4,095 Liabilities Notes payable (1) (48,840 ) Net carrying value $ 14,421 (1) Excludes approximately $15.5 million in notes payable due to Whitestone as of December 31, 2017 .
Schedule of Guarantor Obligations	The Company's maximum exposure to loss relating to Pillarstone OP as of December 31, 2017 is as follows (in thousands): Net carrying value $ 14,421 OP Unit Purchase Agreement 3,000 Notes payable 48,840 Maximum exposure to loss $ 66,261

Accrued Rents and Accounts Re_2

Accrued Rents and Accounts Receivable, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Schedule of Accrued Rent and Accounts Receivable, Net	Accrued rents and accounts receivable, net, consists of amounts accrued, billed and due from tenants, allowance for doubtful accounts and other receivables as follows (in thousands): December 31, 2018 2017 Tenant receivables $ 14,686 $ 14,128 Accrued rents and other recoveries 16,423 15,620 Allowance for doubtful accounts (9,746 ) (8,608 ) Other receivables 279 — Totals $ 21,642 $ 21,140

Unamortized Lease Commissions_2

Unamortized Lease Commissions and Loan Costs (Tables)	12 Months Ended
	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Unamortized Leasing Comissions and Loan Costs	Costs which have been deferred consist of the following (in thousands): December 31, 2018 2017 Leasing commissions $ 8,789 $ 7,861 Deferred legal cost 406 386 Deferred financing cost 4,076 4,071 Total cost 13,271 12,318 Less: leasing commissions accumulated amortization (3,534 ) (3,046 ) Less: deferred legal cost accumulated amortization (125 ) (52 ) Less: deferred financing cost accumulated amortization (2,914 ) (2,063 ) Total cost, net of accumulated amortization $ 6,698 $ 7,157
Schedule of Expected Future Amortization of Deferred Costs	A summary of expected future amortization of deferred costs is as follows (in thousands): Years Ended December 31, Leasing Commissions Deferred Legal Costs (1) Deferred Financing Costs Total 2019 $ 1,193 $ 281 $ 224 $ 1,698 2020 1,038 — 199 1,237 2021 869 — 187 1,056 2022 681 — 187 868 2023 489 — 168 657 Thereafter 985 — 197 1,182 Total $ 5,255 $ 281 $ 1,162 $ 6,698 (1) The Company will recognize a cumulative-effect adjustment to the opening balance of retained earnings of $281,000 in deferred legal costs in 2019 from the modified retrospective adoption of ASC 842.

Future Minimum Lease Income (Ta

Future Minimum Lease Income (Tables)	12 Months Ended
	Dec. 31, 2018
Leases [Abstract]
Schedule of Future Minimum Rental Payments Receivable for Operating Leases	A summary of minimum future rents to be received (exclusive of renewals, tenant reimbursements, and contingent rents) under noncancelable operating leases in existence as of December 31, 2018 is as follows (in thousands): Years Ended December 31, Minimum Future Rents 2019 $ 81,149 2020 70,181 2021 59,550 2022 48,431 2023 37,327 Thereafter 122,102 Total $ 418,740

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Schedule of Debt	Mortgages and other notes payable consist of the following (in thousands): December 31, Description 2018 2017 Fixed rate notes $10.5 million, LIBOR plus 2.00% Note, due September 24, 2020 (1) $ 9,500 $ 9,740 $50.0 million, 1.75% plus 1.35% to 1.90% Note, due October 30, 2020 (2) 50,000 50,000 $50.0 million, 1.50% plus 1.35% to 1.90% Note, due January 29, 2021 (3) 50,000 50,000 $100.0 million, 1.73% plus 1.65% to 2.25% Note, due October 30, 2022 (4) 100,000 100,000 $80.0 million, 3.72% Note, due June 1, 2027 80,000 80,000 $37.0 million 3.76% Note, due December 1, 2020 (5) — 33,148 $6.5 million 3.80% Note, due January 1, 2019 5,657 5,842 $19.0 million 4.15% Note, due December 1, 2024 19,000 19,000 $20.2 million 4.28% Note, due June 6, 2023 18,996 19,360 $14.0 million 4.34% Note, due September 11, 2024 13,718 13,944 $14.3 million 4.34% Note, due September 11, 2024 14,300 14,300 $16.5 million 4.97% Note, due September 26, 2023 (5) — 16,058 $15.1 million 4.99% Note, due January 6, 2024 14,643 14,865 $2.6 million 5.46% Note, due October 1, 2023 2,430 2,472 Floating rate notes Unsecured line of credit, LIBOR plus 1.40% to 1.95%, due October 30, 2019 (6) 241,200 232,200 Total notes payable principal 619,444 660,929 Less deferred financing costs, net of accumulated amortization (1,239 ) (1,861 ) $ 618,205 $ 659,068 (1) Promissory note includes an interest rate swap that fixed the interest rate at 3.55% for the duration of the term through September 24, 2018 and 4.85% beginning September 24, 2018 through September 24, 2020. (2) Promissory note includes an interest rate swap that fixed the LIBOR portion of Term Loan 1 (as defined below) at 0.84% through February 3, 2017 and 1.75% beginning February 3, 2017 through October 30, 2020. (3) Promissory note includes an interest rate swap that fixed the LIBOR portion of Term Loan 2 (as defined below) at 1.50% . (4) Promissory note includes an interest rate swap that fixed the LIBOR portion of Term Loan 3 (as defined below) at 1.73% . (5) Promissory notes were assumed by Pillarstone OP in December 2016 and included in our consolidated balance sheet under the profit-sharing method of accounting through December 31, 2017, as discussed in Note 5. (6) Unsecured line of credit includes certain Pillarstone Properties (as defined and described in more detail below) in determining the amount of credit available under the 2018 Facility (as defined and described in more detail below).
Schedule of Maturities of Debt	Scheduled maturities of our outstanding debt as of December 31, 2018 were as follows (in thousands): Amount Due Year (in thousands) 2019 $ 248,199 2020 60,801 2021 51,611 2022 101,683 2023 20,720 Thereafter 136,430 Total $ 619,444
Schedule of Contractual Obligations	As of December 31, 2018 , we had the following contractual obligations: Payment due by period (in thousands) Consolidated Contractual Obligations Total Less than 1 1 - 3 years 3 - 5 years More than Long-Term Debt - Principal $ 619,444 $ 248,199 $ 112,412 $ 122,403 $ 136,430 Long-Term Debt - Fixed Interest 60,492 13,131 22,772 12,689 11,900 Long-Term Debt - Variable Interest (1) 6,633 6,633 — — — Unsecured credit facility - Unused commitment fee (2) 98 98 — — — Operating Lease Obligations 185 85 100 — — Related Party Rent Lease Obligations 963 441 522 — — Total $ 687,815 $ 268,587 $ 135,806 $ 135,092 $ 148,330 (1) As of December 31, 2018 , we had one loan totaling $241.2 million which bore interest at a floating rate. The variable interest rate payments are based on LIBOR plus 1.40% to LIBOR plus 1.95% , which reflects our new interest rates under the 2018 Facility. The information in the table above reflects our projected interest rate obligations for the floating rate payments based on one-month LIBOR as of December 31, 2018 , of 2.35% . (2) The unused commitment fees on the 2018 Facility, payable quarterly, are based on the average daily unused amount of the 2018 Facility. The fees are 0.20% for facility usage greater than 50% or 0.25% for facility usage less than 50% . The information in the table above reflects our projected obligations for the 2018 Facility based on our December 31, 2018 balance of $441.2 million .

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of activity and fair value of interest rate swaps	A summary of our interest rate swap activity is as follows (in thousands): Amount Recognized as Comprehensive Income Location of Loss Recognized in Earnings Amount of Loss Recognized in Earnings (1) Year ended December 31, 2018 $ 1,192 Interest expense $ 646 Year ended December 31, 2017 $ 2,022 Interest expense $ (1,575 ) Year ended December 31, 2016 $ 929 Interest expense $ (2,385 ) (1) Amounts represent the effective portions of our interest rate swaps. We did not recognize any ineffective portion of our interest rate swaps in earnings for the years ended December 31, 2018 , 2017 and 2016 . The fair value of our interest rate swaps is as follows (in thousands): December 31, 2018 Balance Sheet Location Estimated Fair Value Prepaid expenses and other assets $ 4,286 Accounts payable and accrued expenses $ (59 ) December 31, 2017 Balance Sheet Location Estimated Fair Value Prepaid expenses and other assets $ 3,036

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	Year Ended December 31, (in thousands, except per share data) 2018 2017 2016 Numerator: Net income $ 21,981 $ 8,588 $ 8,113 Less: Net income attributable to noncontrolling interests (550 ) (254 ) (182 ) Distributions paid on unvested restricted shares (301 ) (456 ) (620 ) Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares $ 21,130 $ 7,878 $ 7,311 Denominator: Weighted average number of common shares - basic 39,274 35,428 27,618 Effect of dilutive securities: Unvested restricted shares 1,338 827 765 Weighted average number of common shares - dilutive 40,612 36,255 28,383 Earnings Per Share: Basic: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares $ 0.54 $ 0.22 $ 0.26 Diluted: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares $ 0.52 $ 0.22 $ 0.26

Federal Income Taxes (Tables)

Federal Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Schedule of Characterization of Cash Dividends Distrubuted for Income Tax Purpose	For federal income tax purposes, the cash distributions to shareholders are characterized as follows for the years ended December 31: 2018 2017 2016 Ordinary income (unaudited) 39.1 % 15.3 % 49.0 % Return of capital (unaudited) 26.5 % 84.7 % 33.7 % Capital gain distributions (unaudited) 34.4 % — % 17.3 % Total 100.0 % 100.0 % 100.0 %

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	The following table presents the revenue and expenses with Pillarstone OP included in our consolidated statements of operations for the year ended December 31, 2018 (in thousands): Location of Revenue (Expense) Rent Property operation and maintenance $ (779 ) Property management fee income Other revenues $ 1,008 Interest income Interest, dividend and other investment income $ 582

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2018
Stockholders' Equity Note [Abstract]
Schedule of Distributions	The following table reflects the total distributions we have paid (including the total amount paid and the amount paid per share) in each indicated quarter (in thousands, except per share data): Common Shares Noncontrolling OP Unit Holders Total Quarter Paid Distribution Per Common Share Total Amount Paid Distribution Per OP Unit Total Amount Paid Total Amount Paid 2018 Fourth Quarter $ 0.2850 $ 11,302 $ 0.2850 $ 265 $ 11,567 Third Quarter 0.2850 11,294 0.2850 286 11,580 Second Quarter 0.2850 11,203 0.2850 295 11,498 First Quarter 0.2850 11,145 0.2850 309 11,454 Total $ 1.1400 $ 44,944 $ 1.1400 $ 1,155 $ 46,099 2017 Fourth Quarter $ 0.2850 $ 11,002 $ 0.2850 $ 309 $ 11,311 Third Quarter 0.2850 10,948 0.2850 309 11,257 Second Quarter 0.2850 10,093 0.2850 310 10,403 First Quarter 0.2850 8,429 0.2850 313 8,742 Total $ 1.1400 $ 40,472 $ 1.1400 $ 1,241 $ 41,713

Incentive Share Plan (Tables)

Incentive Share Plan (Tables)	12 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-Based Incentive Plan Activity	A summary of the share-based incentive plan activity as of and for the year ended December 31, 2018 is as follows: Shares Weighted-Average Grant Date Fair Value (1) Non-vested at January 1, 2018 2,481,331 $ 13.60 Granted 653,472 11.07 Vested (560,126 ) 14.24 Forfeited (651,295 ) 14.03 Non-vested at December 31, 2018 1,923,382 $ 12.41 Available for grant at December 31, 2018 3,172,158 (1) The fair value of the shares granted were determined based on observable market transactions occurring near the date of the grants.
Schedule of Nonvested and Vested Shares Activity	A summary of our nonvested and vested shares activity for the years ended December 31, 2018 , 2017 and 2016 is presented below: Shares Granted Shares Vested Year Ended Non-Vested Shares Issued Weighted-Average Grant-Date Fair Value Vested Shares Total Vest-Date Fair Value (in thousands) Year Ended December 31, 2018 653,472 $ 11.07 (560,126 ) $ 7,978 Year Ended December 31, 2017 1,354,534 $ 12.92 (881,710 ) $ 12,829 Year Ended December 31, 2016 545,778 $ 14.85 (734,261 ) $ 10,577

Selected Quarterly Financial _2

Selected Quarterly Financial Data (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information	The following is a summary of our unaudited quarterly financial information for the years ended December 31, 2018 and 2017 (in thousands, except per share data): First Second Third Quarter Quarter Quarter Fourth (As restated) (As restated) (As restated) Quarter 2018 Revenues $ 29,785 $ 29,473 $ 30,704 $ 29,901 Net income $ 3,269 $ 2,005 $ 8,033 $ 8,674 Net income attributable to Whitestone REIT $ 3,181 $ 1,954 $ 7,835 $ 8,457 Basic Earnings per share: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1) $ 0.08 $ 0.05 $ 0.20 $ 0.21 Diluted Earnings per share: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1) $ 0.08 $ 0.05 $ 0.19 $ 0.21 First Second Third Fourth Quarter Quarter Quarter Quarter 2017 Revenues $ 28,267 $ 30,208 $ 33,653 $ 33,831 Net income $ 1,493 $ 2,043 $ 3,077 $ 1,975 Net income attributable to Whitestone REIT $ 1,440 $ 1,983 $ 2,993 $ 1,921 Basic Earnings per share: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1) $ 0.05 $ 0.05 $ 0.07 $ 0.05 Diluted Earnings per share: Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1) $ 0.04 $ 0.05 $ 0.07 $ 0.05 (1) The sum of individual quarterly basic and diluted earnings per share amounts may not agree with the year-to-date basic and diluted earning per share amounts as the result of each period’s computation being based on the weighted average number of common shares outstanding during that period.
Schedule of Error Corrections and Prior Period Adjustments	The following table presents the effects of the immaterial error correction on the consolidated statements of operations and comprehensive income (in thousands): Year Ended December 31, 2017 As Reported Correction of Error As Adjusted Net income $ 8,866 $ (278 ) $ 8,588 Net income attributable to noncontrolling interests 532 (278 ) 254 Year Ended December 31, 2016 As Reported Correction of Error As Adjusted Net income $ 8,128 $ (15 ) $ 8,113 Net income attributable to noncontrolling interests 197 (15 ) 182 As a part of the Quarterly Restatement, the Company has made the following adjustments to the 2018 Quarterly Financial Statements. CONSOLIDATED BALANCE SHEETS (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated ASSETS Real estate assets, at cost Property $ 1,148,176 $ (96,192 ) $ 1,051,984 Accumulated depreciation (135,599 ) 36,811 (98,788 ) Total real estate assets 1,012,577 (59,381 ) 953,196 Investment in real estate partnership — 19,298 19,298 Cash and cash equivalents 9,337 (2,361 ) 6,976 Restricted cash 257 — 257 Escrows and acquisition deposits 6,690 (1,133 ) 5,557 Accrued rents and accounts receivable, net of allowance for doubtful accounts 24,675 (2,866 ) 21,809 Receivable due from related party — 894 894 Financed receivable due from related party — 15,473 15,473 Unamortized lease commissions and loan costs 8,260 (1,238 ) 7,022 Prepaid expenses and other assets 9,451 (10 ) 9,441 Total assets $ 1,071,247 $ (31,324 ) $ 1,039,923 LIABILITIES AND EQUITY Liabilities: Notes payable $ 668,526 $ (48,540 ) $ 619,986 Accounts payable and accrued expenses 30,198 (1,576 ) 28,622 Payable due to related party — 699 699 Tenants’ security deposits 7,028 (1,262 ) 5,766 Dividends and distributions payable 11,489 — 11,489 Total liabilities 717,241 (50,679 ) 666,562 Commitments and contingencies: — — — Equity: Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of March 31, 2018 — — — Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,179,540 issued and outstanding as of March 31, 2018 38 — 38 Additional paid-in capital 522,730 — 522,730 Accumulated deficit (184,853 ) 19,272 (165,581 ) Accumulated other comprehensive gain 5,528 — 5,528 Total Whitestone REIT shareholders’ equity 343,443 19,272 362,715 Redeemable operating partnership units 10,642 4 10,646 Noncontrolling interest in subsidiary (79 ) 79 — Total equity 354,006 19,355 373,361 Total liabilities and equity $ 1,071,247 $ (31,324 ) $ 1,039,923 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED BALANCE SHEETS (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated ASSETS Real estate assets, at cost Property $ 1,149,528 $ (96,757 ) $ 1,052,771 Accumulated depreciation (141,442 ) 37,746 (103,696 ) Total real estate assets 1,008,086 (59,011 ) 949,075 Investment in real estate partnership 4,419 15,465 19,884 Cash and cash equivalents 3,125 — 3,125 Restricted cash 213 — 213 Escrows and acquisition deposits 6,515 — 6,515 Accrued rents and accounts receivable, net of allowance for doubtful accounts 20,464 — 20,464 Receivable due from related party — 772 772 Financed receivable due from related party — 15,473 15,473 Unamortized lease commissions and loan costs 6,911 — 6,911 Prepaid expenses and other assets 10,217 — 10,217 Total assets $ 1,059,950 $ (27,301 ) $ 1,032,649 LIABILITIES AND EQUITY Liabilities: Notes payable $ 667,595 $ (48,241 ) $ 619,354 Accounts payable and accrued expenses 29,157 347 29,504 Payable due to related party — 1,067 1,067 Tenants’ security deposits 5,769 — 5,769 Dividends and distributions payable 11,628 — 11,628 Total liabilities 714,149 (46,827 ) 667,322 Commitments and contingencies: — — — Equity: Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of June 30, 2018 — — — Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,743,829 issued and outstanding as of June 30, 2018 38 — 38 Additional paid-in capital 524,191 — 524,191 Accumulated deficit (194,520 ) 19,516 (175,004 ) Accumulated other comprehensive gain 6,430 — 6,430 Total Whitestone REIT shareholders’ equity 336,139 19,516 355,655 Noncontrolling interest in subsidiary 9,662 10 9,672 Total equity 345,801 19,526 365,327 Total liabilities and equity $ 1,059,950 $ (27,301 ) $ 1,032,649 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED BALANCE SHEETS (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated ASSETS Real estate assets, at cost Property $ 1,146,951 $ (97,636 ) $ 1,049,315 Accumulated depreciation (145,807 ) 38,642 (107,165 ) Total real estate assets 1,001,144 (58,994 ) 942,150 Investment in real estate partnership 2,770 17,616 20,386 Cash and cash equivalents 9,389 — 9,389 Restricted cash 91 — 91 Escrows and acquisition deposits 7,702 — 7,702 Accrued rents and accounts receivable, net of allowance for doubtful accounts 21,906 (12 ) 21,894 Receivable due from related party — 308 308 Financed receivable due from related party — 14,473 14,473 Unamortized lease commissions and loan costs 6,847 — 6,847 Prepaid expenses and other assets 10,597 — 10,597 Total assets $ 1,060,446 $ (26,609 ) $ 1,033,837 LIABILITIES AND EQUITY Liabilities: Notes payable $ 666,624 $ (47,939 ) $ 618,685 Accounts payable and accrued expenses 32,846 332 33,178 Payable due to related party — 1,276 1,276 Tenants’ security deposits 5,920 — 5,920 Dividends and distributions payable 11,600 — 11,600 Total liabilities 716,990 (46,331 ) 670,659 Commitments and contingencies: — — — Equity: Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of September 30, 2018 — — — Common shares, $0.001 par value per share; 400,000,000 shares authorized; 39,772,105 issued and outstanding as of September 30, 2018 38 — 38 Additional paid-in capital 525,780 — 525,780 Accumulated deficit (198,199 ) 19,706 (178,493 ) Accumulated other comprehensive gain 7,034 — 7,034 Total Whitestone REIT shareholders’ equity 334,653 19,706 354,359 Noncontrolling interest in subsidiary 8,803 16 8,819 Total equity 343,456 19,722 363,178 Total liabilities and equity $ 1,060,446 $ (26,609 ) $ 1,033,837 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited March 31, 2018 Previously Reported (1) Adjustments Restated Property revenues Rental revenues $ 24,946 $ (3,274 ) $ 21,672 Other revenues 8,650 (537 ) 8,113 Total property revenues 33,596 (3,811 ) 29,785 Property expenses Property operation and maintenance 5,708 (852 ) 4,856 Real estate taxes 4,657 (681 ) 3,976 Total property expenses 10,365 (1,533 ) 8,832 Other expenses (income) General and administrative 6,314 13 6,327 Depreciation and amortization 7,221 (947 ) 6,274 Equity in earnings of real estate partnership — (674 ) (674 ) Interest expense 6,501 (528 ) 5,973 Interest, dividend and other investment income (99 ) (158 ) (257 ) Total other expense 19,937 (2,294 ) 17,643 Income before gain (loss) on sale or disposal of properties or assets, and income taxes 3,294 16 3,310 Provision for income taxes (129 ) 19 (110 ) Gain on sale of properties 266 (17 ) 249 Loss on sale or disposal of assets (197 ) 17 (180 ) Net income 3,234 35 3,269 Redeemable operating partnership units 84 4 88 Non-controlling interests in Consolidated Partnership 122 (122 ) — Less: Net income attributable to noncontrolling interests 206 (118 ) 88 Net income attributable to Whitestone REIT $ 3,028 $ 153 $ 3,181 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Previously Reported (1) Adjustments Restated Basic Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.08 $ 0.00 $ 0.08 Diluted Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.07 $ 0.01 $ 0.08 Weighted average number of common shares outstanding: Basic 39,066 — 39,066 Diluted 40,088 — 40,088 Distributions declared per common share / OP unit $ 0.2850 $ — $ 0.2850 Consolidated Statements of Comprehensive Income Net income $ 3,234 $ 35 $ 3,269 Other comprehensive gain Unrealized gain on cash flow hedging activities 2,645 — 2,645 Unrealized gain on available-for-sale marketable securities 18 — 18 Comprehensive income 5,897 35 5,932 Less: Net income attributable to noncontrolling interests 206 (118 ) 88 Less: Comprehensive gain attributable to noncontrolling interests 71 — 71 Comprehensive income attributable to Whitestone REIT $ 5,620 $ 153 $ 5,773 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Three Months Ended Unaudited Six Months Ended Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Property revenues Rental revenues $ 24,650 $ (3,268 ) $ 21,382 $ 49,596 $ (6,542 ) $ 43,054 Other revenues 8,422 (331 ) 8,091 17,072 (868 ) 16,204 Total property revenues 33,072 (3,599 ) 29,473 66,668 (7,410 ) 59,258 Property expenses Property operation and maintenance 5,838 (821 ) 5,017 11,546 (1,673 ) 9,873 Real estate taxes 4,485 (580 ) 3,905 9,142 (1,261 ) 7,881 Total property expenses 10,323 (1,401 ) 8,922 20,688 (2,934 ) 17,754 Other expenses (income) General and administrative 6,624 54 6,678 12,938 67 13,005 Depreciation and amortization 7,396 (1,103 ) 6,293 14,617 (2,050 ) 12,567 Equity in earnings of real estate partnership — (586 ) (586 ) — (1,260 ) (1,260 ) Interest expense 6,854 (541 ) 6,313 13,355 (1,069 ) 12,286 Interest, dividend and other investment income (119 ) (165 ) (284 ) (218 ) (323 ) (541 ) Total other expense 20,755 (2,341 ) 18,414 40,692 (4,635 ) 36,057 Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense 1,994 143 2,137 5,288 159 5,447 Provision for income taxes (84 ) 25 (59 ) (213 ) 44 (169 ) Gain on sale of properties — — — 266 (17 ) 249 Profit sharing expense (81 ) 81 — (203 ) 203 — Loss on sale or disposal of assets (74 ) 1 (73 ) (271 ) 18 (253 ) Net income 1,755 250 2,005 4,867 407 5,274 Less: Net income attributable to noncontrolling interests 45 6 51 128 10 138 Net income attributable to Whitestone REIT $ 1,710 $ 244 $ 1,954 $ 4,739 $ 397 $ 5,136 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Unaudited Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Basic Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.04 $ 0.01 $ 0.05 $ 0.12 $ 0.01 $ 0.13 Diluted Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.04 $ 0.01 $ 0.05 $ 0.11 $ 0.01 $ 0.12 Weighted average number of common shares outstanding: Basic 39,204 — 39,204 39,136 — 39,136 Diluted 40,679 — 40,679 40,519 — 40,519 Distributions declared per common share / OP unit $ 0.2850 $ — $ 0.2850 $ 0.5700 $ — $ 0.5700 Consolidated Statements of Comprehensive Income Net income $ 1,755 $ 250 $ 2,005 $ 4,867 $ 407 $ 5,274 Other comprehensive gain Unrealized gain on cash flow hedging activities 913 — 913 3,558 — 3,558 Unrealized gain on available-for-sale marketable securities — — — 18 — 18 Comprehensive income 2,668 250 2,918 8,443 407 8,850 Less: Net income attributable to noncontrolling interests 45 6 51 128 10 138 Less: Comprehensive gain attributable to noncontrolling interests 23 — 23 94 — 94 Comprehensive income attributable to Whitestone REIT $ 2,600 $ 244 $ 2,844 $ 8,221 $ 397 $ 8,618 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Three Months Ended Unaudited Nine Months Ended Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Property revenues Rental revenues $ 25,256 $ (3,292 ) $ 21,964 $ 74,852 $ (9,834 ) $ 65,018 Other revenues 9,340 (600 ) 8,740 26,412 (1,468 ) 24,944 Total property revenues 34,596 (3,892 ) 30,704 101,264 (11,302 ) 89,962 Property expenses Property operation and maintenance 6,374 (922 ) 5,452 17,920 (2,595 ) 15,325 Real estate taxes 5,253 (874 ) 4,379 14,395 (2,135 ) 12,260 Total property expenses 11,627 (1,796 ) 9,831 32,315 (4,730 ) 27,585 Other expenses (income) General and administrative 4,959 23 4,982 17,897 90 17,987 Depreciation and amortization 7,483 (1,006 ) 6,477 22,100 (3,056 ) 19,044 Equity in earnings of real estate partnership — (502 ) (502 ) — (1,762 ) (1,762 ) Interest expense 6,951 (532 ) 6,419 20,306 (1,601 ) 18,705 Interest, dividend and other investment income (84 ) (167 ) (251 ) (302 ) (490 ) (792 ) Total other expense 19,309 (2,184 ) 17,125 60,001 (6,819 ) 53,182 Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense 3,660 88 3,748 8,948 247 9,195 Provision for income taxes (115 ) 23 (92 ) (328 ) 67 (261 ) Gain on sale of properties 4,380 — 4,380 4,646 (17 ) 4,629 Profit sharing expense (73 ) 73 — (276 ) 276 — Loss on sale or disposal of assets (15 ) 12 (3 ) (286 ) 30 (256 ) Net income 7,837 196 8,033 12,704 603 13,307 Less: Net income attributable to noncontrolling interests 193 5 198 326 16 342 Net income attributable to Whitestone REIT $ 7,644 $ 191 $ 7,835 $ 12,378 $ 587 $ 12,965 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (in thousands, except per share data) Unaudited Unaudited Previously Reported (1) Adjustments Restated Previously Reported (1) Adjustments Restated Basic Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.19 $ 0.01 $ 0.20 $ 0.31 $ 0.02 $ 0.33 Diluted Earnings Per Share: Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares $ 0.19 $ 0.00 $ 0.19 $ 0.30 $ 0.01 $ 0.31 Weighted average number of common shares outstanding: Basic 39,327 — 39,327 39,200 — 39,200 Diluted 40,635 — 40,635 40,541 — 40,541 Distributions declared per common share / OP unit $ 0.2850 $ — $ 0.2850 $ 0.8550 $ — $ 0.8550 Consolidated Statements of Comprehensive Income Net income $ 7,837 $ 196 $ 8,033 $ 12,704 $ 603 $ 13,307 Other comprehensive gain Unrealized gain on cash flow hedging activities 605 — 605 4,163 — 4,163 Unrealized gain on available-for-sale marketable securities — — — 18 — 18 Comprehensive income 8,442 196 8,638 16,885 603 17,488 Less: Net income attributable to noncontrolling interests 193 5 198 326 16 342 Less: Comprehensive gain attributable to noncontrolling interests 15 — 15 107 — 107 Comprehensive income attributable to Whitestone REIT $ 8,234 $ 191 $ 8,425 $ 16,452 $ 587 $ 17,039 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited Previously Reported (1) Adjustments Restated Cash flows from operating activities: Net income $ 3,234 $ 35 $ 3,269 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 7,221 (947 ) 6,274 Amortization of deferred loan costs 327 (25 ) 302 Loss on sale of marketable securities 20 — 20 Loss (gain) on sale or disposal of assets and properties (69 ) — (69 ) Bad debt expense 478 (32 ) 446 Share-based compensation 1,845 — 1,845 Equity in earnings of real estate partnership — (674 ) (674 ) Changes in operating assets and liabilities: Escrows and acquisition deposits 3,414 (1,055 ) 2,359 Accrued rent and accounts receivable (1,649 ) 534 (1,115 ) Receivable due from related party — 110 110 Distributions from real estate partnership — 505 505 Unamortized lease commissions (493 ) 90 (403 ) Prepaid expenses and other assets 494 (57 ) 437 Accounts payable and accrued expenses (8,828 ) 1,531 (7,297 ) Payable due to related party — (980 ) (980 ) Tenants’ security deposits 143 (71 ) 72 Net cash provided by operating activities 6,137 (1,036 ) 5,101 Cash flows from investing activities: Additions to real estate (5,090 ) 1,047 (4,043 ) Proceeds from sales of properties 4,433 — 4,433 Investment in real estate partnership — — — Proceeds from sales of marketable securities 30 — 30 Net cash provided by (used in) investing activities (627 ) 1,047 420 Cash flows from financing activities: Distributions paid to common shareholders (11,145 ) — (11,145 ) Distributions paid to OP unit holders (309 ) — (309 ) Distributions paid to noncontrolling interest in Consolidated Partnership (115 ) 115 — Net proceeds from credit facility 9,000 — 9,000 Repayments of notes payable (903 ) 325 (578 ) Payments of loan origination costs — — — Repurchase of common shares (466 ) — (466 ) Net cash used in financing activities (3,938 ) 440 (3,498 ) Net increase in cash, cash equivalents and restricted cash 1,572 451 2,023 Cash, cash equivalents and restricted cash at beginning of period 8,022 (2,812 ) 5,210 Cash, cash equivalents and restricted cash at end of period $ 9,594 $ (2,361 ) $ 7,233 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Supplemental Disclosures Unaudited Previously Reported (1) Adjustments Restated Supplemental disclosure of cash flow information: Cash paid for interest $ 6,316 $ (510 ) $ 5,806 Non cash investing and financing activities: Financed insurance premiums $ 1,273 $ — $ 1,273 Value of shares issued under dividend reinvestment plan $ 33 $ — $ 33 Value of common shares exchanged for OP units $ 4 $ — $ 4 Change in fair value of available-for-sale securities $ 18 $ — $ 18 Change in fair value of cash flow hedge $ 2,645 $ — $ 2,645 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended March 31, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited Previously Reported (1) Adjustments Restated Cash flows from operating activities: Net income $ 4,867 $ 407 $ 5,274 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 14,617 (2,050 ) 12,567 Amortization of deferred loan costs 653 (50 ) 603 Loss on sale of marketable securities 20 — 20 Loss (gain) on sale or disposal of assets and properties 5 (1 ) 4 Bad debt expense 761 (99 ) 662 Share-based compensation 3,246 — 3,246 Equity in earnings of real estate partnership — (1,260 ) (1,260 ) Changes in operating assets and liabilities: Escrows and acquisition deposits 1,401 — 1,401 Accrued rent and accounts receivable 15 (1 ) 14 Receivable due from related party — 232 232 Distributions from real estate partnership — 505 505 Unamortized lease commissions (852 ) — (852 ) Prepaid expenses and other assets 504 2 506 Accounts payable and accrued expenses (6,370 ) (40 ) (6,410 ) Payable due to related party — (612 ) (612 ) Tenants’ security deposits 75 — 75 Net cash provided by operating activities 18,942 (2,967 ) 15,975 Cash flows from investing activities: Additions to real estate (7,566 ) 1,669 (5,897 ) Proceeds from sales of properties 4,433 — 4,433 Investment in real estate partnership (649 ) 649 — Proceeds from sales of marketable securities 30 — 30 Net cash used in investing activities (3,752 ) 2,318 (1,434 ) Cash flows from financing activities: Distributions paid to common shareholders (22,348 ) — (22,348 ) Distributions paid to OP unit holders (604 ) — (604 ) Payments of exchange offer costs (128 ) — (128 ) Net proceeds from credit facility 9,000 — 9,000 Repayments of notes payable (1,923 ) 649 (1,274 ) Repurchase of common shares (1,059 ) — (1,059 ) Net cash used in financing activities (17,062 ) 649 (16,413 ) Net decrease in cash, cash equivalents and restricted cash (1,872 ) — (1,872 ) Cash, cash equivalents and restricted cash at beginning of period 5,210 — 5,210 Cash, cash equivalents and restricted cash at end of period $ 3,338 $ — $ 3,338 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Supplemental Disclosures Unaudited Previously Reported (1) Adjustments Restated Supplemental disclosure of cash flow information: Cash paid for interest $ 12,377 $ (1,022 ) $ 11,355 Cash paid for taxes $ 392 $ (88 ) $ 304 Non cash investing and financing activities: Disposal of fully depreciated real estate $ 960 $ (56 ) $ 904 Financed insurance premiums $ 1,273 $ — $ 1,273 Value of shares issued under dividend reinvestment plan $ 66 $ — $ 66 Value of common shares exchanged for OP units $ 752 $ — $ 752 Change in fair value of available-for-sale securities $ 18 $ — $ 18 Change in fair value of cash flow hedge $ 3,558 $ — $ 3,558 Reallocation of ownership percentage between parent and subsidiary $ 12 $ — $ 12 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited Previously Reported (1) Adjustments Restated Cash flows from operating activities: Net income $ 12,704 $ 603 $ 13,307 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 22,100 (3,056 ) 19,044 Amortization of deferred loan costs 976 (74 ) 902 Loss on sale of marketable securities 20 — 20 Loss (gain) on sale or disposal of assets and properties (4,360 ) (13 ) (4,373 ) Bad debt expense 1,123 (153 ) 970 Share-based compensation 4,894 — 4,894 Equity in earnings of real estate partnership — (1,762 ) (1,762 ) Changes in operating assets and liabilities: Escrows and acquisition deposits 214 — 214 Accrued rent and accounts receivable (1,736 ) 12 (1,724 ) Receivable due from related party — 696 696 Distributions from real estate partnership — 505 505 Unamortized lease commissions (1,394 ) (2 ) (1,396 ) Prepaid expenses and other assets 618 1 619 Accounts payable and accrued expenses (2,924 ) (55 ) (2,979 ) Accounts payable due to related party — (403 ) (403 ) Tenants’ security deposits 226 — 226 Net cash provided by operating activities 32,461 (3,701 ) 28,760 Cash flows from investing activities: Acquisitions of real estate — — Additions to real estate (11,300 ) 2,567 (8,733 ) Proceeds from sales of properties 12,574 — 12,574 Proceeds from financed receivable due from related party — 1,000 1,000 Investment in real estate partnership 843 (843 ) — Proceeds from sales of marketable securities 30 — 30 Net cash provided by investing activities 2,147 2,724 4,871 Cash flows from financing activities: Distributions paid to common shareholders (33,642 ) — (33,642 ) Distributions paid to OP unit holders (890 ) — (890 ) Payments of exchange offer costs (128 ) — (128 ) Net proceeds from credit facility 9,000 — 9,000 Repayments of notes payable (2,949 ) 977 (1,972 ) Payments of loan origination costs (30 ) — (30 ) Repurchase of common shares (1,699 ) — (1,699 ) Net cash used in financing activities (30,338 ) 977 (29,361 ) Net increase in cash, cash equivalents and restricted cash 4,270 — 4,270 Cash, cash equivalents and restricted cash at beginning of period 5,210 — 5,210 Cash, cash equivalents and restricted cash at end of period $ 9,480 $ — $ 9,480 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018. CONSOLIDATED STATEMENTS OF CASH FLOWS Supplemental Disclosures Unaudited Previously Reported (1) Adjustments Restated Supplemental disclosure of cash flow information: Cash paid for interest $ 19,879 $ (1,698 ) $ 18,181 Cash paid for taxes $ 392 $ (88 ) $ 304 Non cash investing and financing activities: Disposal of fully depreciated real estate $ 963 $ (59 ) $ 904 Financed insurance premiums $ 1,273 $ — $ 1,273 Value of shares issued under dividend reinvestment plan $ 101 $ — $ 101 Value of common shares exchanged for OP units $ 1,545 $ — $ 1,545 Change in fair value of available-for-sale securities $ 18 $ — $ 18 Change in fair value of cash flow hedge $ 4,163 $ — $ 4,163 Reallocation of ownership percentage between parent and subsidiary $ 24 $ — $ 24 (1) Previously reported balances are from the Quarterly Report on Form 10-Q for the quarter ended September 30, 2018.

Description of Business and N_2

Description of Business and Nature of Operations (Details) ft² in Millions	1 Months Ended
	Jul. 31, 2004shares	Dec. 31, 2018ft²	Dec. 31, 2018	Dec. 31, 2018property	Dec. 31, 2018CommercialProperties	Dec. 31, 2017ft²property	Dec. 31, 2016property
Real Estate Properties [Line Items]
Reorganization and conversion, number of common shares (in shares) | shares	1.42857
Wholly Owned Properties [Member]
Real Estate Properties [Line Items]
Number of properties				57	57	73	69
Gross leasable area (in square feet) | ft²		4.8
Retail Site [Member] | Community Centered Properties™ [Member] | Wholly Owned Properties [Member]
Real Estate Properties [Line Items]
Number of properties				51
Redevelopment, New Acquisitions Portfolio [Member] | Land [Member] | Parcels Held for Future Development [Member] | Wholly Owned Properties [Member]
Real Estate Properties [Line Items]
Number of properties				6
Pillarstone Capital REIT Operating Partnership LP [Member]
Real Estate Properties [Line Items]
Ownership interest			81.40%
Pillarstone Capital REIT Operating Partnership LP [Member] | Unconsolidated Properties [Member]
Real Estate Properties [Line Items]
Number of properties				11		14
Gross leasable area (in square feet) | ft²		1.3				1.5

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands, ft² in Millions		3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
		Mar. 31, 2018USD ($)	Jun. 30, 2018USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)ft²propertyshares	Dec. 31, 2017USD ($)ft²property	Dec. 31, 2016USD ($)	Jan. 01, 2018USD ($)	May 11, 2017shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion ratio for class A common stock to OP unit (in shares) | shares					1
Net book credit balances					$ 0	$ 800
Interest expense capitalized					574	439	$ 324
Real estate taxes capitalized					365	277	71
Allowance for doubtful accounts					9,746	8,608
Bad debt expense		$ 446	$ 662	$ 970	1,391	2,340	1,585
Fair value of long-term debt					618,600	659,600
Book value of long-term debt					619,400	660,900
Impact of change in accounting principal: ASU 2014-09	[1]							$ 19,119
Deferred legal cost					406	386
2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense					$ 6,800	$ 10,400	$ 10,200
Number of shares authorized (in shares) | shares									3,433,831
Pillarstone Capital REIT Operating Partnership LP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Ownership interest					81.40%
Unconsolidated Properties [Member] | Pillarstone Capital REIT Operating Partnership LP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of properties | property					11	14
Gross leasable area (in square feet) | ft²					1.3	1.5
Accumulated Deficit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Impact of change in accounting principal: ASU 2014-09	[1]							$ 19,119
[1]	Represents the impact of change in accounting principal for our modified retrospective adoption of ASU 2014-09. See Note 2 of the notes to the consolidated financial statements for additional disclosure.

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Restricted Cash (Details) - Anthem Marketplace Note [Member] $ in Millions	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Face amount of debt	$ 15.1
Stated interest rate	4.99%

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Effects of Immaterial Correction (Details) - USD ($) $ in Thousands	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income	$ 8,674	$ 8,033	$ 2,005	$ 3,269	$ 1,975	$ 3,077	$ 2,043	$ 1,493	$ 5,274	$ 13,307	$ 21,981	$ 8,588	$ 8,113
Net income attributable to noncontrolling interests		198	51	88					138	342	$ 550	254	182
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		7,837	1,755	3,234					4,867	12,704		8,866	8,128
Net income attributable to noncontrolling interests		$ 193	$ 45	$ 206					$ 128	$ 326		532	197
Error correction, incorrect initial determination of primary beneficiary of variable interest entity | Correction of Error
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income												(278)	(15)
Net income attributable to noncontrolling interests												$ (278)	$ (15)

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Depreciation (Details) - Building and Building Improvements [Member]	12 Months Ended
	Dec. 31, 2018
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	39 years

Summary of Significant Accoun_8

Summary of Significant Accounting Policies - Taxes (Details) - TEXAS - State and Local Jurisdiction [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Examination [Line Items]
Applicable tax rate used to determine state margin tax	1.00%
Standard deduction rate used to determine state margin tax	30.00%
Margin tax provision recognized	$ 0.4	$ 0.4	$ 0.2

Marketable Securities (Details)

Marketable Securities (Details) - USD ($)	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2018	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Securities, Available-for-sale [Line Items]
Amortized Cost				$ 0	$ 50,000
Gains in Accumulated Other Comprehensive Income				0	0
Losses in Accumulated Other Comprehensive Income				0	(18,000)
Estimated Fair Value				0	32,000
Proceeds from sales of marketable securities	$ 30,000	$ 30,000	$ 30,000	30,000	513,000	$ 0
Gross realized losses				20,000	5,000
Unrealized holding loss				0	18,000
Real estate sector common stock
Debt Securities, Available-for-sale [Line Items]
Amortized Cost				0	50,000
Gains in Accumulated Other Comprehensive Income				0	0
Losses in Accumulated Other Comprehensive Income				0	(18,000)
Estimated Fair Value				$ 0	$ 32,000

Real Estate Narrative (Details)

Real Estate Narrative (Details)

Sep. 24, 2018USD ($)

Feb. 27, 2018USD ($)

Dec. 29, 2017USD ($)a

May 26, 2017USD ($)ft²a

May 03, 2017USD ($)ft²

Nov. 29, 2016USD ($)

Sep. 30, 2016USD ($)ft²shares

Mar. 03, 2016USD ($)

Feb. 17, 2016USD ($)a

Sep. 30, 2018USD ($)

Jun. 30, 2018USD ($)

Mar. 31, 2018USD ($)

Jun. 30, 2018USD ($)

Sep. 30, 2018USD ($)

Dec. 31, 2018USD ($)

Dec. 31, 2017USD ($)property

Dec. 31, 2016USD ($)property

Dec. 31, 2018shares

Dec. 31, 2018ft²

Dec. 31, 2018

Dec. 31, 2018property

Dec. 31, 2018CommercialProperties

Real Estate Properties [Line Items]

Payments to acquire property

$ 0

$ 125,468,000

$ 60,616,000

Conversion ratio for class A common stock to OP unit (in shares) | shares

1

Acquisition-related costs

0

1,600,000

2,100,000

Gain on property dispositions

$ 69,000

$ (4,000)

$ 4,373,000

4,547,000

(167,000)

3,261,000

Deferred gain on sale of property

18,000,000

Gain on sale of properties

$ 4,380,000

$ 0

$ 249,000

$ 249,000

$ 4,629,000

4,629,000

16,000

3,357,000

Hurricane [Member]

Real Estate Properties [Line Items]

Loss from catastrophes

$ 500,000

El Dorado Plaza [Member]

Real Estate Properties [Line Items]

Area of land (in acres) | a

1.83

Payments to acquire property

$ 900,000

La Mirada and Seville [Member]

Real Estate Properties [Line Items]

Consideration transferred

$ 60,700,000

Equity interest (in shares) | shares

621,053

Conversion ratio for class A common stock to OP unit (in shares) | shares

1

La Mirada [Member]

Real Estate Properties [Line Items]

Gross leasable area (in square feet) | ft²

147,209

Property percentage occupied

90.00%

Seville [Member]

Real Estate Properties [Line Items]

Gross leasable area (in square feet) | ft²

90,042

Property percentage occupied

88.00%

Pinnacle of Scottsdale Phase II [Member]

Real Estate Properties [Line Items]

Gross leasable area (in square feet) | ft²

27,063

Property percentage occupied

100.00%

Construction costs incurred

5,461,000

Capitalized interest and real estate taxes

592,000

Shops at Starwood Phase III [Member]

Real Estate Properties [Line Items]

Gross leasable area (in square feet) | ft²

35,351

Property percentage occupied

72.00%

Construction costs incurred

8,400,000

Capitalized interest and real estate taxes

$ 1,100,000

Torrey Square [Member]

Real Estate Properties [Line Items]

Proceeds from sale of real estate

$ 8,700,000

Gain on property dispositions

$ 4,400,000

Bellnot Square [Member]

Real Estate Properties [Line Items]

Proceeds from sale of real estate

$ 4,700,000

Gain on property dispositions

$ 300,000

Zeta, Royal Crest and Featherwood [Member]

Real Estate Properties [Line Items]

Proceeds from sale of real estate

$ 4,900,000

Gain on sale of properties recognized

500,000

Gain on property dispositions

2,200,000

Short-term seller financing provided

$ 1,700,000

Deferred gain on sale of property

$ 1,700,000

Brookhill [Member]

Real Estate Properties [Line Items]

Proceeds from sale of real estate

$ 3,100,000

Gain on sale of properties

$ 1,900,000

Pinnacle Phase II [Member]

Real Estate Properties [Line Items]

Area of land (in acres) | a

4.5

Proceeds from sale of real estate

$ 1,100,000

Gain on sale of properties

$ 1,000,000

Area of land sold (in acres) | a

0.5

Wholly Owned Properties [Member]

Real Estate Properties [Line Items]

Number of properties

73

69

57

57

Gross leasable area (in square feet) | ft²

4,800,000

BLVD Place [Member]

Real Estate Properties [Line Items]

Gross leasable area (in square feet) | ft²

216,944

Area of land (in acres) | a

1.43

Consideration transferred

$ 158,000,000

Mortgage financing

80,000,000

Cash purchase price

$ 78,000,000

Property percentage occupied

99.00%

El Dorado Plaza [Member]

Real Estate Properties [Line Items]

Gross leasable area (in square feet) | ft²

221,577

Consideration transferred

$ 46,600,000

Property percentage occupied

96.00%

Real Estate Pro Forma Results o

Real Estate Pro Forma Results of Operations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Real Estate [Abstract]
Total property revenues	$ 133,663	$ 129,385
Net income	11,322	16,963
Net income attributable to Whitestone REIT	$ 10,990	$ 16,583
Basic Earnings Per Share (in dollars per share)	$ 0.28	$ 0.45
Diluted Earnings Per Share (in dollars per share)	$ 0.27	$ 0.44
Weighted-average common shares outstanding:
Basic (in shares)	37,933	35,637
Diluted (in shares)	38,760	36,402

Investment in Real Estate Par_3

Investment in Real Estate Partnership - Narrative (Details) $ / shares in Units, $ in Thousands	Dec. 27, 2018USD ($)property	Dec. 08, 2016USD ($)subsidiaryproperty$ / shares	Mar. 31, 2018USD ($)	Jun. 30, 2018USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Variable Interest Entity [Line Items]
Repayments of notes payable			$ 578	$ 1,274	$ 1,972	$ 2,543	$ 11,543	$ 14,335
Notes payable			$ 619,986	$ 619,354	$ 618,685	$ 618,205	659,068
Pillarstone Variable Interest Entity [Member]
Variable Interest Entity [Line Items]
Number of wholly-owned subsidiaries | subsidiary		4
Number of non-core properties | property		14
Consideration amount		$ 84,000
Consideration, limited partnership interest		$ 18,100
Consideration, limited partnership interest (in dollars per share) | $ / shares		$ 1.331
Liabilities assumed		$ 65,900
OP unit purchase agreement amount		$ 3,000
OP unit purchase agreement unit price (in dollars per share) | $ / shares		$ 1.331
OP unit purchase agreement term		2 years
Property management fee, percent fee		5.00%
Asset management fee, percent fee		0.125%
Pillarstone Variable Interest Entity [Member] | Uptown Tower [Member]
Variable Interest Entity [Line Items]
Property management fee, percent fee		3.00%
Asset management fee, percent fee		0.125%
Pillarstone Variable Interest Entity [Member] | Line of Credit [Member]
Variable Interest Entity [Line Items]
Liabilities assumed		$ 15,500
Pillarstone Variable Interest Entity [Member] | Notes Payable [Member] | Uptown Tower Promissory Note [Member]
Variable Interest Entity [Line Items]
Liabilities assumed		16,300
Pillarstone Variable Interest Entity [Member] | Notes Payable [Member] | Industrial-Office Promissory Note [Member]
Variable Interest Entity [Line Items]
Liabilities assumed		$ 34,100
Pillarstone Capital REIT Operating Partnership LP [Member]
Variable Interest Entity [Line Items]
Ownership interest						81.40%
Notes payable							48,840
Amortization of the basis difference between the cost of investment and the Company's share of underlying net book value						$ 108
Pillarstone Capital REIT Operating Partnership LP [Member] | Consolidation, Eliminations [Member]
Variable Interest Entity [Line Items]
Repayments of notes payable	$ 8,000
Notes payable	$ 14,500
Pillarstone Capital REIT Operating Partnership LP [Member] | Three Properties in Houston, Texas [Member]
Variable Interest Entity [Line Items]
Number of properties | property	3
Proceeds from sale of real estate	$ 15,800
Gain on sale of properties recognized	$ 6,300
Performance Guarantee [Member]
Variable Interest Entity [Line Items]
Guarantees, Fair Value Disclosure						$ 462
Guarantee Liability, Amortization Period						7 years
Amortization of guarantee liability						$ 106	$ 112

Investment in Real Estate Par_4

Investment in Real Estate Partnership - Unconsolidated Real Estate Partnership Investments (Details) $ in Thousands, ft² in Millions		Dec. 31, 2018USD ($)ft²property	Sep. 30, 2018USD ($)	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Jan. 01, 2018USD ($)	Dec. 31, 2017USD ($)ft²property
Schedule of Equity Method Investments [Line Items]
Investment in real estate partnership		$ 26,236	$ 20,386	$ 19,884	$ 19,298		$ 4,095
Deferred gain on sale of property							$ 18,000
Impact of change in accounting principal	[1]					$ 19,119
Accounting Standards Update 2017-05 [Member]
Schedule of Equity Method Investments [Line Items]
Impact of change in accounting principal						$ 19,100
Pillarstone Capital REIT Operating Partnership LP [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest		81.40%
Investment in real estate partnership		$ 26,236
Pillarstone Capital REIT Operating Partnership LP [Member] | Unconsolidated Properties [Member]
Schedule of Equity Method Investments [Line Items]
Number of properties | property		11					14
Gross leasable area (in square feet) | ft²		1.3					1.5
[1]	Represents the impact of change in accounting principal for our modified retrospective adoption of ASU 2014-09. See Note 2 of the notes to the consolidated financial statements for additional disclosure.

Investment in Real Estate Par_5

Investment in Real Estate Partnership - Net Income from Investments in Real Estate Partnerships (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Net income from investments in real estate partnerships	$ 502	$ 586	$ 674	$ 1,260	$ 1,762	$ 8,431	$ 0	$ 0
Pillarstone Capital REIT Operating Partnership LP [Member]
Schedule of Equity Method Investments [Line Items]
Net income from investments in real estate partnerships						$ 8,431

Investment in Real Estate Par_6

Investment in Real Estate Partnership - Summarized Financial Information for Investment in Real Estate Partnership - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Liabilities and equity:
Carrying value of investment in real estate partnership	$ 26,236	$ 20,386	$ 19,884	$ 19,298	$ 4,095
Pillarstone Capital REIT Operating Partnership LP [Member]
Assets:
Real estate, net	72,661
Other assets	6,617
Total assets	79,278
Liabilities and equity:
Notes payable	47,064
Other liabilities	4,322
Equity	27,892
Total liabilities and equity	79,278
Company’s share of equity	22,717
Cost of investment in excess (deficit) of the Company’s share of underlying net book value	3,519
Carrying value of investment in real estate partnership	$ 26,236

Investment in Real Estate Par_7

Investment in Real Estate Partnership - Summarized Financial Information for Investment in Real Estate Partnership - Income Statement (Details) - Pillarstone Capital REIT Operating Partnership LP [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Schedule of Equity Method Investments [Line Items]
Property revenues	$ 17,180
Property expenses	(6,687)
Other expenses	(7,848)
Gain on sale of properties	7,839
Net income	$ 10,484

Investment in Real Estate Par_8

Investment in Real Estate Partnership - Certain Assets and Liabilities for Pillarstone OP (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 27, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Real estate assets, at cost
Property	$ 1,052,238		$ 1,049,315	$ 1,052,771	$ 1,051,984	$ 1,149,454
Accumulated depreciation	(113,300)		(107,165)	(103,696)	(98,788)	(131,034)
Total real estate assets	938,938		942,150	949,075	953,196	1,018,420
Liabilities:
Notes payable	$ (618,205)		$ (618,685)	$ (619,354)	$ (619,986)	(659,068)
Pillarstone Capital REIT Operating Partnership LP [Member]
Real estate assets, at cost
Property						95,146
Accumulated depreciation						(35,980)
Total real estate assets						59,166
Investment in real estate partnership						4,095
Liabilities:
Notes payable						(48,840)
Net carrying value						14,421
Pillarstone Capital REIT Operating Partnership LP [Member] | Consolidation, Eliminations [Member]
Liabilities:
Notes payable		$ (14,500)
Pillarstone Capital REIT Operating Partnership LP [Member] | Consolidation, Eliminations [Member]
Liabilities:
Notes payable						$ 15,500

Investment in Real Estate Par_9

Investment in Real Estate Partnership - Maximum Exposure to Loss (Details) $ in Thousands	Dec. 31, 2017USD ($)
Guarantor Obligations [Line Items]
Maximum exposure to loss	$ 66,261
Net carrying value
Guarantor Obligations [Line Items]
Maximum exposure to loss	14,421
OP Unit Purchase Agreement
Guarantor Obligations [Line Items]
Maximum exposure to loss	3,000
Notes payable
Guarantor Obligations [Line Items]
Maximum exposure to loss	$ 48,840

Accrued Rents and Accounts Re_3

Accrued Rents and Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Receivables [Abstract]
Tenant receivables	$ 14,686				$ 14,128
Accrued rents and other recoveries	16,423				15,620
Other receivables	(9,746)				(8,608)
Other receivables	279				0
Totals	$ 21,642	$ 21,894	$ 20,464	$ 21,809	$ 21,140

Unamortized Lease Commissions_3

Unamortized Lease Commissions and Loan Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Leasing commissions	$ 8,789				$ 7,861
Deferred legal cost	406				386
Deferred financing cost	4,076				4,071
Total cost	13,271				12,318
Less: leasing commissions accumulated amortization	(3,534)				(3,046)
Less: deferred legal cost accumulated amortization	(125)				(52)
Less: deferred financing cost accumulated amortization	(2,914)				(2,063)
Total cost, net of accumulated amortization	$ 6,698	$ 6,847	$ 6,911	$ 7,022	$ 7,157

Unamortized Lease Commissions_4

Unamortized Lease Commissions and Loan Costs (Details 2) - USD ($) $ in Thousands		Jan. 01, 2019	Dec. 31, 2018	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of change in accounting principal	[1]			$ 19,119
Expected Amortization of Deferred Leasing Commissions Year 2019			$ 1,193
Expected Amortization of Deferred Leasing Commissions Year 2020			1,038
Expected Amortization of Deferred Leasing Commissions Year 2021			869
Expected Amortization of Deferred Leasing Commissions Year 2022			681
Expected Amortization of Deferred Leasing Commissions Year 2023			489
Expected Amortization of Deferred Leasing Commissions Thereafter			985
Expected Amortization of Deferred Leasing Commissions			5,255
Expected Amortization of Deferred Legal Costs Year 2019			281
Expected Amortization of Deferred Legal Costs Year 2020			0
Expected Amortization of Deferred Legal Costs Year 2021			0
Expected Amortization of Deferred Legal Costs Year 2022			0
Expected Amortization of Deferred Legal Costs Year 2023			0
Expected Amortization of Deferred Legal Costs Year Thereafter			0
Expected Amortization of Deferred Legal Costs			281
Expected Amortization of Deferred Financing Costs Year 2019			224
Expected Amortization of Deferred Financing Costs Year 2020			199
Expected Amortization of Deferred Financing Costs Year 2021			187
Expected Amortization of Deferred Financing Costs Year 2022			187
Expected Amortization of Deferred Financing Costs Year 2023			168
Expected Amortization of Deferred Financing Costs Thereafter			197
Expected Amortization of Deferred Financing Costs			1,162
Expected Amortization of Deferred Costs Year 2019			1,698
Expected Amortization of Deferred Costs Year 2020			1,237
Expected Amortization of Deferred Costs Year 2021			1,056
Expected Amortization of Deferred Costs Year 2022			868
Expected Amortization of Deferred Costs Year 2023			657
Expected Amortization of Deferred Costs Thereafter			1,182
Expected Amortization of Deferred Costs			$ 6,698
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of change in accounting principal	[1]			$ 19,119
Retained Earnings [Member] | Scenario, Forecast [Member] | Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of change in accounting principal		$ 281
[1]	Represents the impact of change in accounting principal for our modified retrospective adoption of ASU 2014-09. See Note 2 of the notes to the consolidated financial statements for additional disclosure.

Future Minimum Lease Income (De

Future Minimum Lease Income (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 81,149
2020	70,181
2021	59,550
2022	48,431
2023	37,327
Thereafter	122,102
Total	$ 418,740

Debt (Schedule of Debt) (Detail

Debt (Schedule of Debt) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Sep. 25, 2018	Sep. 24, 2018	Dec. 31, 2017	May 26, 2017	Feb. 04, 2017	Feb. 03, 2017
Debt Instrument [Line Items]
Total notes payable principal	$ 619,444,000			$ 660,929,000
Less deferred financing costs, net of accumulated amortization	(1,239,000)			(1,861,000)
Long-term debt	618,205,000			659,068,000
Fixed Rate Notes [Member] | $10.5 million, LIBOR plus 2.00% Note, due September 24, 2020 | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Total notes payable principal	9,500,000			9,740,000
Face amount of debt	$ 10,500,000
Basis spread on variable rate	2.00%
Fixed Rate Notes [Member] | $50.0 million, 1.75% plus 1.35% to 1.90% Note, due October 30, 2020
Debt Instrument [Line Items]
Total notes payable principal	$ 50,000,000			50,000,000
Face amount of debt	$ 50,000,000
Imputed interest rate	1.75%
Fixed Rate Notes [Member] | $50.0 million, 1.75% plus 1.35% to 1.90% Note, due October 30, 2020 | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.35%
Fixed Rate Notes [Member] | $50.0 million, 1.75% plus 1.35% to 1.90% Note, due October 30, 2020 | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%
Fixed Rate Notes [Member] | $50.0 million, 1.50% plus 1.35% to 1.90% Note, due January 29, 2021
Debt Instrument [Line Items]
Total notes payable principal	$ 50,000,000			50,000,000
Face amount of debt	$ 50,000,000
Imputed interest rate	1.50%
Fixed Rate Notes [Member] | $50.0 million, 1.50% plus 1.35% to 1.90% Note, due January 29, 2021 | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.35%
Fixed Rate Notes [Member] | $50.0 million, 1.50% plus 1.35% to 1.90% Note, due January 29, 2021 | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%
Fixed Rate Notes [Member] | $100.0 million, 1.73% plus 1.65% to 2.25% Note, due October 30, 2022
Debt Instrument [Line Items]
Total notes payable principal	$ 100,000,000			100,000,000
Face amount of debt	$ 100,000,000
Imputed interest rate	1.73%
Fixed Rate Notes [Member] | $100.0 million, 1.73% plus 1.65% to 2.25% Note, due October 30, 2022 | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.65%
Fixed Rate Notes [Member] | $100.0 million, 1.73% plus 1.65% to 2.25% Note, due October 30, 2022 | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Fixed Rate Notes [Member] | $80.0 million, 3.72% Note, due June 1, 2027
Debt Instrument [Line Items]
Total notes payable principal	$ 80,000,000			80,000,000
Face amount of debt	$ 80,000,000				$ 80,000,000
Stated interest rate	3.72%				3.72%
Fixed Rate Notes [Member] | $37.0 million 3.76% Note, due December 1, 2020
Debt Instrument [Line Items]
Total notes payable principal	$ 0			33,148,000
Face amount of debt	$ 37,000,000
Stated interest rate	3.76%
Fixed Rate Notes [Member] | $6.5 million 3.80% Note, due January 1, 2019
Debt Instrument [Line Items]
Total notes payable principal	$ 5,657,000			5,842,000
Face amount of debt	$ 6,500,000
Stated interest rate	3.80%
Fixed Rate Notes [Member] | $19.0 million 4.15% Note, due December 1, 2024
Debt Instrument [Line Items]
Total notes payable principal	$ 19,000,000			19,000,000
Face amount of debt	$ 19,000,000
Stated interest rate	4.15%
Fixed Rate Notes [Member] | $20.2 million 4.28% Note, due June 6, 2023
Debt Instrument [Line Items]
Total notes payable principal	$ 18,996,000			19,360,000
Face amount of debt	$ 20,200,000
Stated interest rate	4.28%
Fixed Rate Notes [Member] | $14.0 million 4.34% Note, due September 11, 2024
Debt Instrument [Line Items]
Total notes payable principal	$ 13,718,000			13,944,000
Face amount of debt	$ 14,000,000
Stated interest rate	4.34%
Fixed Rate Notes [Member] | $14.3 million 4.34% Note, due September 11, 2024
Debt Instrument [Line Items]
Total notes payable principal	$ 14,300,000			14,300,000
Face amount of debt	$ 14,300,000
Stated interest rate	4.34%
Fixed Rate Notes [Member] | $16.5 million 4.97% Note, due September 26, 2023
Debt Instrument [Line Items]
Total notes payable principal	$ 0			16,058,000
Face amount of debt	$ 16,500,000
Stated interest rate	4.97%
Fixed Rate Notes [Member] | $15.1 million 4.99% Note, due January 6, 2024
Debt Instrument [Line Items]
Total notes payable principal	$ 14,643,000			14,865,000
Face amount of debt	$ 15,100,000
Stated interest rate	4.99%
Fixed Rate Notes [Member] | $2.6 million 5.46% Note, due October 1, 2023
Debt Instrument [Line Items]
Total notes payable principal	$ 2,430,000			2,472,000
Face amount of debt	$ 2,600,000
Stated interest rate	5.46%
Floating Rate Notes [Member]
Debt Instrument [Line Items]
Long-term debt	$ 241,200,000
Floating Rate Notes [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.40%
Floating Rate Notes [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.95%
Floating Rate Notes [Member] | Unsecured line of credit, LIBOR plus 1.40% to 1.95%, due October 30, 2019 | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Total notes payable principal	$ 241,200,000			$ 232,200,000
Floating Rate Notes [Member] | Unsecured line of credit, LIBOR plus 1.40% to 1.95%, due October 30, 2019 | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.40%
Floating Rate Notes [Member] | Unsecured line of credit, LIBOR plus 1.40% to 1.95%, due October 30, 2019 | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.95%
Interest Rate Swap [Member] | $10.5 million, LIBOR plus 2.00% Note, due September 24, 2020
Debt Instrument [Line Items]
Stated interest rate		4.85%	3.55%
Interest Rate Swap [Member] | $50.0 million, 1.75% plus 1.35% to 1.90% Note, due October 30, 2020
Debt Instrument [Line Items]
Stated interest rate						1.75%	0.84%
Interest Rate Swap [Member] | $50.0 million, 1.50% plus 1.35% to 1.90% Note, due January 29, 2021
Debt Instrument [Line Items]
Stated interest rate	1.50%
Interest Rate Swap [Member] | $100.0 million, 1.73% plus 1.65% to 2.25% Note, due October 30, 2022
Debt Instrument [Line Items]
Stated interest rate	1.73%

Debt (Narrative) (Details)

Debt (Narrative) (Details)	Nov. 07, 2014USD ($)	Dec. 31, 2018USD ($)propertyloan	Dec. 31, 2017USD ($)	May 26, 2017USD ($)
Debt Instrument [Line Items]
Secured Debt		$ 178,200,000
Number of collateralized properties | property		9
Carrying value of collateralized properties		$ 279,100,000
Long-term debt		$ 618,205,000	$ 659,068,000
Minimum [Member]
Debt Instrument [Line Items]
Credit facility, commitment fee		0.20%
Credit facility, usage		50.00%
Maximum [Member]
Debt Instrument [Line Items]
Credit facility, commitment fee		0.25%
Credit facility, usage		50.00%
2018 Facility [Member]
Debt Instrument [Line Items]
Interest rate at period end		4.28%
Floating Rate Notes [Member]
Debt Instrument [Line Items]
Number of loans (in loans) | loan		1
Long-term debt		$ 241,200,000
Floating Rate Notes [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		1.40%
Floating Rate Notes [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		1.95%
Floating Rate Notes [Member] | One-month LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		2.35%
Fixed Rate Notes [Member] | $80.0 million, 3.72% Note, due June 1, 2027
Debt Instrument [Line Items]
Face amount of debt		$ 80,000,000		$ 80,000,000
Stated interest rate		3.72%		3.72%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, amount outstanding		$ 441,200,000
Revolving Credit Facility [Member] | The Revolver [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 300,000,000
Revolving Credit Facility [Member] | 2018 Facility [Member]
Debt Instrument [Line Items]
Credit facility, increased borrowing capacity		700,000,000
Credit facility, amount outstanding		441,200,000
Credit facility, remaining borrowing capacity		58,800,000
Revolving Credit Facility [Member] | 2018 Facility [Member] | Pillarstone [Member]
Debt Instrument [Line Items]
Credit facility, amount outstanding		$ 5,700,000
Revolving Credit Facility [Member] | 2018 Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Revolving Credit Facility [Member] | 2018 Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.40%
Revolving Credit Facility [Member] | 2018 Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.95%
Term Loan [Member] | Term Loan 3 [Member]
Debt Instrument [Line Items]
Face amount of debt	$ 100,000,000
Term Loan [Member] | Term Loan 1 [Member]
Debt Instrument [Line Items]
Face amount of debt	50,000,000
Term Loan [Member] | Term Loan 2 [Member]
Debt Instrument [Line Items]
Face amount of debt	$ 50,000,000
Term Loan [Member] | 2018 Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.35%
Term Loan [Member] | 2018 Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%

Debt (Schedule of Maturities of

Debt (Schedule of Maturities of Debt) (Details) $ in Thousands	Dec. 31, 2018USD ($)
Debt Disclosure [Abstract]
2019	$ 248,199
2020	60,801
2021	51,611
2022	101,683
2023	20,720
Thereafter	136,430
Long-Term Debt - Principal, Total	$ 619,444

Debt (Contractual Obligations)

Debt (Contractual Obligations) (Details) $ in Thousands	Dec. 31, 2018USD ($)
Debt Disclosure [Abstract]
Long-Term Debt - Principal, Total	$ 619,444
Long-Term Debt - Principal, Less than 1 year (2019)	248,199
Long-Term Debt - Principal, 1 - 3 years (2020 - 2021)	112,412
Long-Term Debt - Principal, 3 - 5 years (2022 - 2023)	122,403
Long-Term Debt - Principal, More than 5 years (after 2023)	136,430
Long-Term Debt - Fixed Interest, Total	60,492
Long-Term Debt - Fixed Interest, Less than 1 year (2019)	13,131
Long-Term Debt - Fixed Interest, 1 - 3 years (2020 - 2021)	22,772
Long-Term Debt - Fixed Interest, 3 - 5 years (2022 - 2023)	12,689
Long-Term Debt - Fixed Interest, More than 5 years (after 2023)	11,900
Long-Term Debt - Variable Interest, Total	6,633
Long-Term Debt - Variable Interest, Less than 1 year (2019)	6,633
Long-Term Debt - Variable Interest, 1 - 3 years (2020 - 2021)	0
Long-Term Debt - Variable Interest, 3 - 5 years (2022 - 2023)	0
Long-Term Debt - Variable Interest, More than 5 years (after 2023)	0
Unsecured revolving credit facility - Unused commitment fee, Total	98
Unsecured revolving credit facility - Unused commitment fee, Less than 1 year (2019)	98
Unsecured revolving credit facility - Unused commitment fee, 1 - 3 years (2020 - 2021)	0
Unsecured revolving credit facility - Unused commitment fee, 3 - 5 years (2022 - 2023)	0
Unsecured revolving credit facility - Unused commitment fee, More than 5 years (after 2023)	0
Operating Lease Obligations, Total	185
Operating Lease Obligations, Less than 1 year (2019)	85
Operating Lease Obligations, 1 - 3 years (2020 - 2021)	100
Operating Lease Obligations, 3 - 5 years (2022 - 2023)	0
Operating Lease Obligations, More than 5 years (after 2023)	0
Related Party Rent Lease Obligation, Total	963
Related Party Rent Lease Obligation, Less than 1 year (2019)	441
Related Party Rent Lease Obligation, 1 - 3 years (2020 - 2021)	522
Related Party Rent Lease Obligation, 3 - 5 years (2022 - 2023)	0
Related Party Rent Lease Obligation, More than 5 years (after 2023)	0
Contractual Obligations, Total	687,815
Contractual Obligations, Less than 1 year (2019)	268,587
Contractual Obligations, 1 - 3 years (2020 - 2021)	135,806
Contractual Obligations, 3 - 5 years (2022 - 2023)	135,092
Contractual Obligations, More than 5 years (after 2023)	$ 148,330

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Sep. 05, 2018	Nov. 19, 2015
Interest Rate Swap [Member] | Interest Expense [Member]
Derivative [Line Items]
Amount Recognized as Comprehensive Income (Loss)		$ 1,192	$ 2	$ 929
Amount of Gain (Loss) Recognized in Earnings		646	(1,575)	$ (2,385)
Interest Rate Swap [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivative [Line Items]
Estimated fair value		4,286	$ 3,036
Interest Rate Swap [Member] | Accounts Payable and Accrued Expenses [Member]
Derivative [Line Items]
Estimated fair value		$ (59)
Term Loan 3 [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Fixed interest rate						1.725%
Term Loan 3 [Member] | U.S. Bank National Association [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	$ 35,000
Term Loan 3 [Member] | SunTrust Bank [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	15,000
Term Loan 1 [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	14,000
Term Loan 1 [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Fixed interest rate						1.75%
Term Loan 1 [Member] | U.S. Bank National Association [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	6,500
Term Loan 1 [Member] | Wells Fargo Bank, National Association [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	14,000
Term Loan 1 [Member] | SunTrust Bank [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	5,000
Term Loan 1 [Member] | Regions Bank [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	3,800
Term Loan 2 [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Fixed interest rate						1.502%
Term Loan 2 [Member] | U.S. Bank National Association [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	6,500
Term Loan 2 [Member] | Wells Fargo Bank, National Association [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	14,000
Term Loan 2 [Member] | Bank of American, N.A. [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	14,000
Term Loan 2 [Member] | SunTrust Bank [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	5,000
Term Loan 2 [Member] | Regions Bank [Member]
Derivative [Line Items]
Swap amount assigned to counterparty	$ 3,800
Terravita Marketplace [Member] | Extension Loan [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, amount of hedged item					$ 9,600
Fixed interest rate					2.85%

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Numerator:
Net income	$ 8,674	$ 8,033	$ 2,005	$ 3,269	$ 1,975	$ 3,077	$ 2,043	$ 1,493	$ 5,274	$ 13,307	$ 21,981	$ 8,588	$ 8,113
Less: Net income attributable to noncontrolling interests		$ (198)	$ (51)	$ (88)					$ (138)	$ (342)	(550)	(254)	(182)
Distributions paid on unvested restricted shares											(301)	(456)	(620)
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares											$ 21,130	$ 7,878	$ 7,311
Denominator:
Weighted average number of common shares - basic		39,327,000	39,204,000	39,066,000					39,136,000	39,200,000	39,274,000	35,428,000	27,618,000
Effect of dilutive securities:
Unvested restricted shares											1,338,000	827,000	765,000
Weighted average number of common shares - dilutive		40,635,000	40,679,000	40,088,000					40,519,000	40,541,000	40,612,000	36,255,000	28,383,000
Basic:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.21	$ 0.20	$ 0.05	$ 0.08	$ 0.05	$ 0.07	$ 0.05	$ 0.05	$ 0.13	$ 0.33	$ 0.54	$ 0.22	$ 0.26
Diluted:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.21	$ 0.19	$ 0.05	$ 0.08	$ 0.05	$ 0.07	$ 0.05	$ 0.04	$ 0.12	$ 0.31	$ 0.52	$ 0.22	$ 0.26
OP Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
OP units excluded from diluted earnings per share because their effect would be anti-dilutive (in shares)											1,011,268	1,088,292	642,132
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Distributions to holders of certain restricted common shares											$ 317	$ 472	$ 636
Distributions to holders of certain restricted common shares charged against earnings											$ 16

Federal Income Taxes (Details)

Federal Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Contingency [Line Items]
Income Tax Expense (Benefit)	$ 92	$ 59	$ 110	$ 169	$ 261	$ 347	$ 386	$ 289
Ordinary income (unaudited)						39.10%	15.30%	49.00%
Return of capital (unaudited)						26.50%	84.70%	33.70%
Capital gain distributions (unaudited)						34.40%	0.00%	17.30%
Total						100.00%	100.00%	100.00%
Davenport TRS [Member]
Income Tax Contingency [Line Items]
Income Tax Expense (Benefit)								$ 45

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Dec. 08, 2016
Related Party Transaction [Line Items]
Financed receivable due from related party	$ 5,661	$ 14,473	$ 15,473	$ 15,473	$ 0
Beneficial Owner [Member] | Mr. James C. Mastandrea [Member]
Related Party Transaction [Line Items]
Ownership percentage	78.50%
Beneficial Owner [Member] | Mr. John J. Dee [Member]
Related Party Transaction [Line Items]
Ownership percentage	26.60%
Pillarstone OP [Member]
Related Party Transaction [Line Items]
Financed receivable due from related party	$ 5,700					$ 15,400
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Pillarstone OP [Member]
Related Party Transaction [Line Items]
Financing receivable, basis spread on variable rate						1.40%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Pillarstone OP [Member]
Related Party Transaction [Line Items]
Financing receivable, basis spread on variable rate						1.95%

Related Party Transactions - Re

Related Party Transactions - Revenue and Expenses (Details) - Pillarstone OP [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Property operation and maintenance
Related Party Transaction [Line Items]
Rent	$ (779)
Other revenues
Related Party Transaction [Line Items]
Property management fee income	1,008
Interest, dividend and other investment income
Related Party Transaction [Line Items]
Interest income	$ 582

Equity (Details)

Equity (Details) $ / shares in Units, $ in Thousands	Apr. 25, 2017USD ($)$ / sharesshares	Dec. 31, 2018USD ($)$ / sharesshares	Sep. 30, 2018USD ($)$ / sharesshares	Jun. 30, 2018USD ($)$ / sharesshares	Mar. 31, 2018USD ($)$ / sharesshares	Dec. 31, 2017USD ($)$ / sharesshares	Sep. 30, 2017USD ($)$ / shares	Jun. 30, 2017USD ($)$ / shares	Mar. 31, 2017USD ($)$ / shares	Jun. 30, 2018USD ($)$ / sharesshares	Sep. 30, 2018USD ($)$ / sharesshares	Dec. 31, 2018USD ($)$ / sharesshares	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)shares	Jun. 04, 2015USD ($)agreement
Class of Stock [Line Items]
Common shares, authorized (in shares) | shares		400,000,000	400,000,000	400,000,000	400,000,000	400,000,000				400,000,000	400,000,000	400,000,000	400,000,000
Common shares, par value per share (in dollars per share) | $ / shares		$ 0.001	$ 0.001	$ 0.001	$ 0.001	$ 0.001				$ 0.001	$ 0.001	$ 0.001	$ 0.001
Preferred shares, shares authorized (in shares) | shares		50,000,000	50,000,000	50,000,000	50,000,000	50,000,000				50,000,000	50,000,000	50,000,000	50,000,000
Preferred shares, par value per share (in dollars per share) | $ / shares		$ 0.001	$ 0.001	$ 0.001	$ 0.001	$ 0.001				$ 0.001	$ 0.001	$ 0.001	$ 0.001
Proceeds from issuance of common shares, net of offering costs												$ 0	$ 118,412	$ 30,014
Number of equity distribution agreements | agreement															9
Amount authorized															$ 50,000
Common shares, issued (in shares) | shares		39,778,029	39,772,105	39,743,829	39,179,540	39,221,773				39,743,829	39,772,105	39,778,029	39,221,773
Ownership interest in operating partnership												97.70%
Conversion ratio for class A common stock to OP unit (in shares) | shares		1										1
Weighted-average share ownership in operating partnership												97.50%	97.00%	97.80%
Payments of exchange offer costs										$ 128	$ 128	$ 126	$ 0	$ 0
OP Units [Member]
Class of Stock [Line Items]
OP units outstanding (in shares) | shares		40,585,688				40,184,532						40,585,688	40,184,532
Conversion of stock, shares converted (in shares) | shares												155,100	19,055
OP units owned (in shares) | shares		39,657,207				39,100,951						39,657,207	39,100,951
Cash Distribution [Member]
Class of Stock [Line Items]
Total Amount Paid		$ 11,567	$ 11,580	$ 11,498	$ 11,454	$ 11,311	$ 11,257	$ 10,403	$ 8,742			$ 46,099	$ 41,713
Cash Distribution [Member] | Common Stock [Member]
Class of Stock [Line Items]
Distribution Per Common Share (in dollars per share) | $ / shares		$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850			$ 1.1400	$ 1.1400
Total Amount Paid		$ 11,302	$ 11,294	$ 11,203	$ 11,145	$ 11,002	$ 10,948	$ 10,093	$ 8,429			$ 44,944	$ 40,472
Cash Distribution [Member] | OP Units [Member]
Class of Stock [Line Items]
Distribution Per Common Share (in dollars per share) | $ / shares		$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850	$ 0.2850			$ 1.1400	$ 1.1400
Total Amount Paid		$ 265	$ 286	$ 295	$ 309	$ 309	$ 309	$ 310	$ 313			$ 1,155	$ 1,241
Private Placement [Member]
Class of Stock [Line Items]
Issuance of commons shares (in shares) | shares	8,018,500
Share price of equity offering (in dollars per share) | $ / shares	$ 13
Proceeds from issuance of common shares, net of offering costs	$ 99,900
Over-Allotment Option [Member]
Class of Stock [Line Items]
Issuance of commons shares (in shares) | shares	1,018,500
2015 Equity Distribution Agreement [Member]
Class of Stock [Line Items]
Issuance of commons shares (in shares) | shares												0	1,324,038	2,063,697
Proceeds from issuance of common shares, net of offering costs														$ 30,000
Payments for Commissions														$ 500
Proceeds from issuance													$ 18,600
Payments of exchange offer costs													$ 300

Incentive Share Plan (Narrative

Incentive Share Plan (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	Dec. 01, 2018	Sep. 06, 2017	Jun. 30, 2016	Jun. 30, 2015	Apr. 02, 2014	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	May 11, 2017	Dec. 22, 2010
Restricted Common Shares and Restricted Share Units [Member] | Time-Based Vesting [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments granted (in shares)			320,000	143,000
Restricted Stock [Member] | Market-Based Vesting (TSR Units) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period						24 months
Restricted stock granted (in shares)	229,684	267,783
Performance period	3 years	3 years
Award vesting percentage						200.00%
Grant date fair value (in dollars per share)	$ 14.89	$ 12.37
Unrecognized compensation cost						$ 4.6
Restricted Stock [Member] | Market-Based Vesting (TSR Units) [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	0.00%	0.00%
Restricted Stock [Member] | Market-Based Vesting (TSR Units) [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	200.00%	200.00%
Restricted Stock [Member] | Immediate Vesting (CIC Units) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)		965,000				965,000
Grant date fair value (in dollars per share)		$ 13.05
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period						33 months
2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of maximum number of shares issued under plan to aggregate shares (as a percent)										12.50%
Share-based compensation expense						$ 6.8	$ 10.4	$ 10.2
Unrecognized compensation cost						$ 7.5
Period from recognition						22 months
Number of shares authorized (in shares)									3,433,831
2008 Long-Term Equity Incentive Ownership Plan [Member] | Time-Based Vesting [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					1 year
2008 Long-Term Equity Incentive Ownership Plan [Member] | Time-Based Vesting [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					2 years
2008 Long-Term Equity Incentive Ownership Plan [Member] | Restricted Common Shares and Restricted Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage						100.00%
2008 Long-Term Equity Incentive Ownership Plan [Member] | Restricted Common Shares and Restricted Share Units [Member] | Time and Performance-Based Vesting [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments granted (in shares)					633,704
2008 Long-Term Equity Incentive Ownership Plan [Member] | Restricted Common Shares and Restricted Share Units [Member] | Performance Vesting [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments granted (in shares)					2,049,116
2008 Long-Term Equity Incentive Ownership Plan [Member] | Non-Vested Time Based Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost						$ 2.9
Period from recognition						33 months

Incentive Share Plan (Schedule

Incentive Share Plan (Schedule of Share-Based Incentive Plan Activity) (Details) - 2008 Long-Term Equity Incentive Ownership Plan [Member] - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Shares
Non-vested, beginning balance (in shares)	2,481,331
Granted (in shares)	653,472	1,354,534	545,778
Vested (in shares)	(560,126)	(881,710)	(734,261)
Forfeited (in shares)	(651,295)
Non-vested, ending balance (in shares)	1,923,382	2,481,331
Available for grant (in shares)	3,172,158
Weighted-Average Grant Date Fair Value
Non-vested, beginning balance (in dollars per share)	$ 13.60
Granted (in dollars per share)	11.07	$ 12.92	$ 14.85
Vested (in dollars per share)	14.24
Forfeited (in dollars per share)	14.03
Non-vested, ending balance (in dollars per share)	$ 12.41	$ 13.60

Incentive Share Plan (Schedul_2

Incentive Share Plan (Schedule of Nonvested and Vested Shares Activity) (Details) - 2008 Long-Term Equity Incentive Ownership Plan [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Shares Issued (in shares)	653,472	1,354,534	545,778
Weighted Average Grant Date Fair Value (in dollars per share)	$ 11.07	$ 12.92	$ 14.85
Vested Shares (in shares)	(560,126)	(881,710)	(734,261)
Total Vest-Date Fair Value	$ 7,978	$ 12,829	$ 10,577

Grants to Trustees (Details)

Grants to Trustees (Details)	Dec. 12, 2017trustee$ / sharesshares	Dec. 21, 2016trustee$ / sharesshares
Individual Trustee Grant Agreements 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of independent trustees | trustee	6	4
Number of trustee emeritus | trustee	1	1
Individual Trustee Grant Agreements 1 [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock granted to trustees (in shares) | shares	16,281	7,500
Stock granted to trustees, vested in period (in shares) | shares	3,000	1,500
Stock granted to trustees, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 14.46	$ 14.07
Individual Trustee Grant Agreements 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of independent trustees | trustee	3	2
Individual Trustee Grant Agreements 2 [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock granted to trustees (in shares) | shares	2,320	3,128
Stock granted to trustees, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 14.46	$ 14.07

Selected Quarterly Financial _3

Selected Quarterly Financial Data (unaudited) - Unaudited Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 29,901	$ 30,704	$ 29,473	$ 29,785	$ 33,831	$ 33,653	$ 30,208	$ 28,267	$ 59,258	$ 89,962	$ 119,863	$ 125,959	$ 104,437
Net income	8,674	8,033	2,005	3,269	1,975	3,077	2,043	1,493	5,274	13,307	21,981	8,588	8,113
Net income (loss) attributable to Whitestone REIT	$ 8,457	$ 7,835	$ 1,954	$ 3,181	$ 1,921	$ 2,993	$ 1,983	$ 1,440	$ 5,136	$ 12,965	$ 21,431	$ 8,334	$ 7,931
Basic Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.21	$ 0.20	$ 0.05	$ 0.08	$ 0.05	$ 0.07	$ 0.05	$ 0.05	$ 0.13	$ 0.33	$ 0.54	$ 0.22	$ 0.26
Diluted Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.21	$ 0.19	$ 0.05	$ 0.08	$ 0.05	$ 0.07	$ 0.05	$ 0.04	$ 0.12	$ 0.31	$ 0.52	$ 0.22	$ 0.26

Selected Quarterly Financial _4

Selected Quarterly Financial Data (unaudited) - Quarterly Restatement Adjustments - Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Real estate assets, at cost
Property	$ 1,052,238	$ 1,049,315	$ 1,052,771	$ 1,051,984	$ 1,149,454
Accumulated depreciation	(113,300)	(107,165)	(103,696)	(98,788)	(131,034)
Total real estate assets	938,938	942,150	949,075	953,196	1,018,420
Investment in real estate partnership	26,236	20,386	19,884	19,298	4,095
Cash and cash equivalents	13,658	9,389	3,125	6,976	5,005
Restricted cash	128	91	213	257	205
Escrows and acquisition deposits	8,211	7,702	6,515	5,557	7,916
Accrued rents and accounts receivable, net of allowance for doubtful accounts	21,642	21,894	20,464	21,809	21,140
Receivable due from related party	394	308	772	894	0
Financed receivable due from related party	5,661	14,473	15,473	15,473	0
Unamortized lease commissions and loan costs	6,698	6,847	6,911	7,022	7,157
Prepaid expenses and other assets	7,306	10,597	10,217	9,441	6,198
Total assets	1,028,872	1,033,837	1,032,649	1,039,923	1,070,168
Liabilities:
Notes payable	618,205	618,685	619,354	619,986	659,068
Accounts payable and accrued expenses	33,729	33,178	29,504	28,622	35,536
Payable due to related party	58	1,276	1,067	699	0
Tenants' security deposits	6,130	5,920	5,769	5,766	5,694
Dividends and distributions payable	11,600	11,600	11,628	11,489	11,466
Total liabilities	669,722	670,659	667,322	666,562	711,764
Commitments and contingencies:	0	0	0	0	0
Equity:
Preferred shares	0	0	0	0	0
Common shares	39	38	38	38	38
Additional paid-in capital	527,662	525,780	524,191	522,730	521,314
Accumulated deficit	(181,361)	(178,493)	(175,004)	(165,581)	(176,684)
Accumulated other comprehensive gain	4,116	7,034	6,430	5,528	2,936
Total Whitestone REIT shareholders' equity	350,456	354,359	355,655	362,715	347,604
Redeemable operating partnership units				10,646
Noncontrolling interest in Consolidated Partnership				0
Noncontrolling interest in subsidiary	8,694	8,819	9,672		10,800
Total equity	359,150	363,178	365,327	373,361	358,404	$ 267,628	$ 246,991
Total liabilities and equity	$ 1,028,872	1,033,837	1,032,649	1,039,923	$ 1,070,168
Previously Reported
Real estate assets, at cost
Property		1,146,951	1,149,528	1,148,176
Accumulated depreciation		(145,807)	(141,442)	(135,599)
Total real estate assets		1,001,144	1,008,086	1,012,577
Investment in real estate partnership		2,770	4,419	0
Cash and cash equivalents		9,389	3,125	9,337
Restricted cash		91	213	257
Escrows and acquisition deposits		7,702	6,515	6,690
Accrued rents and accounts receivable, net of allowance for doubtful accounts		21,906	20,464	24,675
Receivable due from related party		0	0	0
Financed receivable due from related party		0	0	0
Unamortized lease commissions and loan costs		6,847	6,911	8,260
Prepaid expenses and other assets		10,597	10,217	9,451
Total assets		1,060,446	1,059,950	1,071,247
Liabilities:
Notes payable		666,624	667,595	668,526
Accounts payable and accrued expenses		32,846	29,157	30,198
Payable due to related party		0	0	0
Tenants' security deposits		5,920	5,769	7,028
Dividends and distributions payable		11,600	11,628	11,489
Total liabilities		716,990	714,149	717,241
Commitments and contingencies:		0	0	0
Equity:
Preferred shares		0	0	0
Common shares		38	38	38
Additional paid-in capital		525,780	524,191	522,730
Accumulated deficit		(198,199)	(194,520)	(184,853)
Accumulated other comprehensive gain		7,034	6,430	5,528
Total Whitestone REIT shareholders' equity		334,653	336,139	343,443
Redeemable operating partnership units				10,642
Noncontrolling interest in Consolidated Partnership				(79)
Noncontrolling interest in subsidiary		8,803	9,662
Total equity		343,456	345,801	354,006
Total liabilities and equity		1,060,446	1,059,950	1,071,247
Recognition of Pillarstone OP Investment under equity method accounting | Adjustments
Real estate assets, at cost
Property		(97,636)	(96,757)	(96,192)
Accumulated depreciation		38,642	37,746	36,811
Total real estate assets		(58,994)	(59,011)	(59,381)
Investment in real estate partnership		17,616	15,465	19,298
Cash and cash equivalents		0	0	(2,361)
Restricted cash		0	0	0
Escrows and acquisition deposits		0	0	(1,133)
Accrued rents and accounts receivable, net of allowance for doubtful accounts		(12)	0	(2,866)
Receivable due from related party		308	772	894
Financed receivable due from related party		14,473	15,473	15,473
Unamortized lease commissions and loan costs		0	0	(1,238)
Prepaid expenses and other assets		0	0	(10)
Total assets		(26,609)	(27,301)	(31,324)
Liabilities:
Notes payable		(47,939)	(48,241)	(48,540)
Accounts payable and accrued expenses		332	347	(1,576)
Payable due to related party		1,276	1,067	699
Tenants' security deposits		0	0	(1,262)
Dividends and distributions payable		0	0	0
Total liabilities		(46,331)	(46,827)	(50,679)
Commitments and contingencies:		0	0	0
Equity:
Preferred shares		0	0	0
Common shares		0	0	0
Additional paid-in capital		0	0	0
Accumulated deficit		19,706	19,516	19,272
Accumulated other comprehensive gain		0	0	0
Total Whitestone REIT shareholders' equity		19,706	19,516	19,272
Redeemable operating partnership units				4
Noncontrolling interest in Consolidated Partnership				79
Noncontrolling interest in subsidiary		16	10
Total equity		19,722	19,526	19,355
Total liabilities and equity		$ (26,609)	$ (27,301)	$ (31,324)

Selected Quarterly Financial _5

Selected Quarterly Financial Data (unaudited) - Quarterly Restatement Adjustments - Consolidated Balance Sheets Parenthetical (Details) - $ / shares	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Preferred shares, par value per share (in dollars per share)	$ 0.001	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Preferred shares, shares authorized (in shares)	50,000,000	50,000,000	50,000,000	50,000,000	50,000,000
Preferred shares, shares issued (in shares)	0	0	0	0	0
Preferred shares, shares outstanding (in shares)	0	0	0	0	0
Common shares, par value per share (in dollars per share)	$ 0.001	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Common shares, authorized (in shares)	400,000,000	400,000,000	400,000,000	400,000,000	400,000,000
Common shares, issued (in shares)	39,778,029	39,772,105	39,743,829	39,179,540	39,221,773
Common shares, outstanding (in shares)	39,778,029	39,772,105	39,743,829	39,179,540	39,221,773

Selected Quarterly Financial _6

Selected Quarterly Financial Data (unaudited) - Quarterly Restatement Adjustments - Consolidated Statements of Operations and Comprehensive Income (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property revenues
Rental revenues		$ 21,964	$ 21,382	$ 21,672					$ 43,054	$ 65,018	$ 86,644	$ 94,568	$ 80,068
Other revenues		8,740	8,091	8,113					16,204	24,944	33,219	31,391	24,369
Total property revenues	$ 29,901	30,704	29,473	29,785	$ 33,831	$ 33,653	$ 30,208	$ 28,267	59,258	89,962	119,863	125,959	104,437
Property expenses
Property operation and maintenance		5,452	5,017	4,856					9,873	15,325	21,069	24,213	19,709
Real estate taxes		4,379	3,905	3,976					7,881	12,260	16,362	17,897	14,383
Total property expenses		9,831	8,922	8,832					17,754	27,585	37,431	42,110	34,092
Other expenses (income)
General and administrative		4,982	6,678	6,327					13,005	17,987	23,281	23,949	23,922
Depreciation and amortization		6,477	6,293	6,274					12,567	19,044	25,679	27,240	22,457
Equity in earnings of real estate partnership		(502)	(586)	(674)					(1,260)	(1,762)	(8,431)	0	0
Interest expense		6,419	6,313	5,973					12,286	18,705	25,177	23,651	19,239
Interest, dividend and other investment income		(251)	(284)	(257)					(541)	(792)	(1,055)	(410)	(429)
Total other expense		17,125	18,414	17,643					36,057	53,182	64,651	74,430	65,189
Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense		3,748	2,137	3,310					5,447	9,195	17,781	9,419	5,156
Provision for income taxes		(92)	(59)	(110)					(169)	(261)	(347)	(386)	(289)
Gain on sale of properties		4,380	0	249					249	4,629	4,629	16	3,357
Profit sharing expense		0	0						0	0	0	(278)	(15)
Loss on sale or disposal of assets		(3)	(73)	(180)					(253)	(256)	(82)	(183)	(96)
Net income	8,674	8,033	2,005	3,269	1,975	3,077	2,043	1,493	5,274	13,307	21,981	8,588	8,113
Redeemable operating partnership units				88
Non-controlling interests in Consolidated Partnership				0
Less: Net income attributable to noncontrolling interests		198	51	88					138	342	550	254	182
Net income attributable to Whitestone REIT	$ 8,457	$ 7,835	$ 1,954	$ 3,181	$ 1,921	$ 2,993	$ 1,983	$ 1,440	$ 5,136	$ 12,965	$ 21,431	$ 8,334	$ 7,931
Basic Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.21	$ 0.20	$ 0.05	$ 0.08	$ 0.05	$ 0.07	$ 0.05	$ 0.05	$ 0.13	$ 0.33	$ 0.54	$ 0.22	$ 0.26
Diluted Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.21	$ 0.19	$ 0.05	$ 0.08	$ 0.05	$ 0.07	$ 0.05	$ 0.04	$ 0.12	$ 0.31	$ 0.52	$ 0.22	$ 0.26
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (in shares)		39,327	39,204	39,066					39,136	39,200	39,274	35,428	27,618
Diluted (in shares)		40,635	40,679	40,088					40,519	40,541	40,612	36,255	28,383
Distributions declared per common share / OP unit (in dollars per share)		$ 0.2850	$ 0.2850	$ 0.2850					$ 0.5700	$ 0.8550	$ 1.14	$ 1.1400	$ 1.1400
Consolidated Statements of Comprehensive Income
Net income	$ 8,674	$ 8,033	$ 2,005	$ 3,269	$ 1,975	$ 3,077	$ 2,043	$ 1,493	$ 5,274	$ 13,307	$ 21,981	$ 8,588	$ 8,113
Other comprehensive gain
Unrealized gain on cash flow hedging activities		605	913	2,645					3,558	4,163	1,192	2,022	929
Unrealized gain on available-for-sale marketable securities		0	0	18					18	18	18	118	82
Comprehensive income		8,638	2,918	5,932					8,850	17,488	23,191	10,728	9,124
Less: Net income attributable to noncontrolling interests		198	51	88					138	342	550	254	182
Less: Comprehensive gain attributable to noncontrolling interests		15	23	71					94	107	30	63	23
Comprehensive income attributable to Whitestone REIT		8,425	2,844	5,773					8,618	17,039	$ 22,611	10,411	8,919
Previously Reported
Property revenues
Rental revenues		25,256	24,650	24,946					49,596	74,852
Other revenues		9,340	8,422	8,650					17,072	26,412
Total property revenues		34,596	33,072	33,596					66,668	101,264
Property expenses
Property operation and maintenance		6,374	5,838	5,708					11,546	17,920
Real estate taxes		5,253	4,485	4,657					9,142	14,395
Total property expenses		11,627	10,323	10,365					20,688	32,315
Other expenses (income)
General and administrative		4,959	6,624	6,314					12,938	17,897
Depreciation and amortization		7,483	7,396	7,221					14,617	22,100
Equity in earnings of real estate partnership		0	0	0					0	0
Interest expense		6,951	6,854	6,501					13,355	20,306
Interest, dividend and other investment income		(84)	(119)	(99)					(218)	(302)
Total other expense		19,309	20,755	19,937					40,692	60,001
Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense		3,660	1,994	3,294					5,288	8,948
Provision for income taxes		(115)	(84)	(129)					(213)	(328)
Gain on sale of properties		4,380	0	266					266	4,646
Profit sharing expense		(73)	(81)						(203)	(276)
Loss on sale or disposal of assets		(15)	(74)	(197)					(271)	(286)
Net income		7,837	1,755	3,234					4,867	12,704		8,866	8,128
Redeemable operating partnership units				84
Non-controlling interests in Consolidated Partnership				122
Less: Net income attributable to noncontrolling interests		193	45	206					128	326		532	197
Net income attributable to Whitestone REIT		$ 7,644	$ 1,710	$ 3,028					$ 4,739	$ 12,378
Basic Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)		$ 0.19	$ 0.04	$ 0.08					$ 0.12	$ 0.31
Diluted Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)		$ 0.19	$ 0.04	$ 0.07					$ 0.11	$ 0.30
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (in shares)		39,327	39,204	39,066					39,136	39,200
Diluted (in shares)		40,635	40,679	40,088					40,519	40,541
Distributions declared per common share / OP unit (in dollars per share)		$ 0.2850	$ 0.2850	$ 0.2850					$ 0.5700	$ 0.8550
Consolidated Statements of Comprehensive Income
Net income		$ 7,837	$ 1,755	$ 3,234					$ 4,867	$ 12,704		8,866	8,128
Other comprehensive gain
Unrealized gain on cash flow hedging activities		605	913	2,645					3,558	4,163
Unrealized gain on available-for-sale marketable securities		0	0	18					18	18
Comprehensive income		8,442	2,668	5,897					8,443	16,885
Less: Net income attributable to noncontrolling interests		193	45	206					128	326		$ 532	$ 197
Less: Comprehensive gain attributable to noncontrolling interests		15	23	71					94	107
Comprehensive income attributable to Whitestone REIT		8,234	2,600	5,620					8,221	16,452
Recognition of Pillarstone OP Investment under equity method accounting | Adjustments
Property revenues
Rental revenues		(3,292)	(3,268)	(3,274)					(6,542)	(9,834)
Other revenues		(600)	(331)	(537)					(868)	(1,468)
Total property revenues		(3,892)	(3,599)	(3,811)					(7,410)	(11,302)
Property expenses
Property operation and maintenance		(922)	(821)	(852)					(1,673)	(2,595)
Real estate taxes		(874)	(580)	(681)					(1,261)	(2,135)
Total property expenses		(1,796)	(1,401)	(1,533)					(2,934)	(4,730)
Other expenses (income)
General and administrative		23	54	13					67	90
Depreciation and amortization		(1,006)	(1,103)	(947)					(2,050)	(3,056)
Equity in earnings of real estate partnership		(502)	(586)	(674)					(1,260)	(1,762)
Interest expense		(532)	(541)	(528)					(1,069)	(1,601)
Interest, dividend and other investment income		(167)	(165)	(158)					(323)	(490)
Total other expense		(2,184)	(2,341)	(2,294)					(4,635)	(6,819)
Income before gain (loss) on sale or disposal of properties or assets, income taxes, and profit sharing expense		88	143	16					159	247
Provision for income taxes		23	25	19					44	67
Gain on sale of properties		0	0	(17)					(17)	(17)
Profit sharing expense		73	81						203	276
Loss on sale or disposal of assets		12	1	17					18	30
Net income		196	250	35					407	603
Redeemable operating partnership units				4
Non-controlling interests in Consolidated Partnership				(122)
Less: Net income attributable to noncontrolling interests		5	6	(118)					10	16
Net income attributable to Whitestone REIT		$ 191	$ 244	$ 153					$ 397	$ 587
Basic Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)		$ 0.01	$ 0.01	$ 0					$ 0.01	$ 0.02
Diluted Earnings Per Share:
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)		$ 0	$ 0.01	$ 0.01					$ 0.01	$ 0.01
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (in shares)		0	0	0					0	0
Diluted (in shares)		0	0	0					0	0
Distributions declared per common share / OP unit (in dollars per share)		$ 0	$ 0	$ 0					$ 0	$ 0
Consolidated Statements of Comprehensive Income
Net income		$ 196	$ 250	$ 35					$ 407	$ 603
Other comprehensive gain
Unrealized gain on cash flow hedging activities		0	0	0					0	0
Unrealized gain on available-for-sale marketable securities		0	0	0					0	0
Comprehensive income		196	250	35					407	603
Less: Net income attributable to noncontrolling interests		5	6	(118)					10	16
Less: Comprehensive gain attributable to noncontrolling interests		0	0	0					0	0
Comprehensive income attributable to Whitestone REIT		$ 191	$ 244	$ 153					$ 397	$ 587

Selected Quarterly Financial _7

Selected Quarterly Financial Data (unaudited) - Quarterly Restatement Adjustments - Consolidated Statements of Cash Flows (Details) - USD ($)	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income	$ 8,674,000	$ 8,033,000	$ 2,005,000	$ 3,269,000	$ 1,975,000	$ 3,077,000	$ 2,043,000	$ 1,493,000	$ 5,274,000	$ 13,307,000	$ 21,981,000	$ 8,588,000	$ 8,113,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization				6,274,000					12,567,000	19,044,000	25,679,000	27,240,000	22,457,000
Amortization of deferred loan costs				302,000					603,000	902,000	1,092,000	1,283,000	1,554,000
Loss on sale of marketable securities				20,000					20,000	20,000	20,000	91,000	0
Loss (gain) on sale or disposal of assets and properties				(69,000)					4,000	(4,373,000)	(4,547,000)	167,000	(3,261,000)
Bad debt expense				446,000					662,000	970,000	1,391,000	2,340,000	1,585,000
Share-based compensation				1,845,000					3,246,000	4,894,000	6,741,000	10,410,000	10,231,000
Equity in earnings of real estate partnership		(502,000)	(586,000)	(674,000)					(1,260,000)	(1,762,000)	(8,431,000)	0	0
Changes in operating assets and liabilities:
Escrows and acquisition deposits				2,359,000					1,401,000	214,000	(295,000)	(3,570,000)	2,322,000
Accrued rent and accounts receivable				(1,115,000)					14,000	(1,724,000)	(1,893,000)	(5,430,000)	(3,630,000)
Receivable due from related party				110,000					232,000	696,000	610,000	0	0
Distributions from real estate partnership				505,000					505,000	505,000	1,324,000	0	0
Unamortized lease commissions				(403,000)					(852,000)	(1,396,000)	(1,676,000)	(2,299,000)	(1,474,000)
Prepaid expenses and other assets				437,000					506,000	619,000	1,175,000	168,000	1,396,000
Accounts payable and accrued expenses				(7,297,000)					(6,410,000)	(2,979,000)	(2,429,000)	1,337,000	1,089,000
Payable due to related party				(980,000)					(612,000)	(403,000)	(1,621,000)	0	0
Tenants' security deposits				72,000					75,000	226,000	436,000	565,000	(125,000)
Net cash provided by operating activities				5,101,000					15,975,000	28,760,000	39,557,000	41,398,000	40,648,000
Cash flows from investing activities:
Acquisitions of real estate											0	(125,468,000)	(60,616,000)
Additions to real estate				(4,043,000)					(5,897,000)	(8,733,000)	(11,638,000)	(17,575,000)	(22,036,000)
Proceeds from sales of properties				4,433,000					4,433,000	12,574,000	12,574,000	26,000	6,897,000
Proceeds from financed receivable due from related party										1,000,000	9,812,000	0	0
Investment in real estate partnership				0					0	0	0	(2,394,000)	(2,704,000)
Proceeds from sales of marketable securities				30,000					30,000	30,000	30,000	513,000	0
Net cash provided by (used in) investing activities				420,000					(1,434,000)	4,871,000	10,778,000	(144,898,000)	(78,459,000)
Cash flows from financing activities:
Distributions paid to common shareholders				(11,145,000)					(22,348,000)	(33,642,000)	(44,944,000)	(40,472,000)	(31,911,000)
Distributions paid to OP unit holders				(309,000)					(604,000)	(890,000)	(1,155,000)	(1,241,000)	(729,000)
Payments of exchange offer costs									(128,000)	(128,000)	(126,000)	0	0
Distributions paid to noncontrolling interest in Consolidated Partnership				0
Net proceeds from credit facility				9,000,000					9,000,000	9,000,000	9,000,000	45,600,000	59,000,000
Repayments of notes payable				(578,000)					(1,274,000)	(1,972,000)	(2,543,000)	(11,543,000)	(14,335,000)
Payments of loan origination costs				0						(30,000)	(30,000)	(695,000)	0
Repurchase of common shares				(466,000)					(1,059,000)	(1,699,000)	(1,961,000)	(4,339,000)	(3,948,000)
Net cash provided by (used in) financing activities				(3,498,000)					(16,413,000)	(29,361,000)	(41,759,000)	105,722,000	38,091,000
Net increase in cash, cash equivalents and restricted cash				2,023,000					(1,872,000)	4,270,000	8,576,000	2,222,000	280,000
Cash, cash equivalents and restricted cash at beginning of period	9,480,000	3,338,000	7,233,000	5,210,000				$ 2,988,000	5,210,000	5,210,000	5,210,000	2,988,000	2,708,000
Cash, cash equivalents and restricted cash at end of period	13,786,000	9,480,000	3,338,000	7,233,000	5,210,000				3,338,000	9,480,000	13,786,000	5,210,000	2,988,000
Supplemental disclosure of cash flow information:
Cash paid for interest				5,806,000					11,355,000	18,181,000	24,610,000	22,541,000	18,287,000
Cash paid for taxes									304,000	304,000	304,000	337,000	284,000
Non cash investing and financing activities:
Disposal of fully depreciated real estate									904,000	904,000	937,000	1,036,000	690,000
Financed insurance premiums				1,273,000					1,273,000	1,273,000	1,273,000	1,115,000	1,060,000
Value of shares issued under dividend reinvestment plan				33,000					66,000	101,000	133,000	127,000	114,000
Value of common shares exchanged for OP units				4,000					752,000	1,545,000	1,546,000	206,000	125,000
Change in fair value of available-for-sale securities				18,000					18,000	18,000	18,000	118,000	82,000
Change in fair value of cash flow hedge				2,645,000					3,558,000	4,163,000	1,192,000	2,022,000	929,000
Reallocation of ownership percentage between parent and subsidiary									12,000	24,000	15,000	13,000	11,000
Previously Reported
Cash flows from operating activities:
Net income		7,837,000	1,755,000	3,234,000					4,867,000	12,704,000		8,866,000	$ 8,128,000
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in earnings of real estate partnership		0	0	0					0	0
Previously Reported, March 31, 2018 10-Q
Cash flows from operating activities:
Net income				3,234,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization				7,221,000
Amortization of deferred loan costs				327,000
Loss on sale of marketable securities				20,000
Loss (gain) on sale or disposal of assets and properties				(69,000)
Bad debt expense				478,000
Share-based compensation				1,845,000
Equity in earnings of real estate partnership				0
Changes in operating assets and liabilities:
Escrows and acquisition deposits				3,414,000
Accrued rent and accounts receivable				(1,649,000)
Receivable due from related party				0
Distributions from real estate partnership				0
Unamortized lease commissions				(493,000)
Prepaid expenses and other assets				494,000
Accounts payable and accrued expenses				(8,828,000)
Payable due to related party				0
Tenants' security deposits				143,000
Net cash provided by operating activities				6,137,000
Cash flows from investing activities:
Additions to real estate				(5,090,000)
Proceeds from sales of properties				4,433,000
Investment in real estate partnership				0
Proceeds from sales of marketable securities				30,000
Net cash provided by (used in) investing activities				(627,000)
Cash flows from financing activities:
Distributions paid to common shareholders				(11,145,000)
Distributions paid to OP unit holders				(309,000)
Distributions paid to noncontrolling interest in Consolidated Partnership				(115,000)
Net proceeds from credit facility				9,000,000
Repayments of notes payable				(903,000)
Payments of loan origination costs				0
Repurchase of common shares				(466,000)
Net cash provided by (used in) financing activities				(3,938,000)
Net increase in cash, cash equivalents and restricted cash				1,572,000
Cash, cash equivalents and restricted cash at beginning of period			9,594,000	8,022,000					8,022,000	8,022,000	8,022,000
Cash, cash equivalents and restricted cash at end of period				9,594,000	8,022,000							8,022,000
Supplemental disclosure of cash flow information:
Cash paid for interest				6,316,000
Non cash investing and financing activities:
Financed insurance premiums				1,273,000
Value of shares issued under dividend reinvestment plan				33,000
Value of common shares exchanged for OP units				4,000
Change in fair value of available-for-sale securities				18,000
Change in fair value of cash flow hedge				2,645,000
Previously Reported, June 30, 2018 10-Q
Cash flows from operating activities:
Net income									4,867,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization									14,617,000
Amortization of deferred loan costs									653,000
Loss on sale of marketable securities									20,000
Loss (gain) on sale or disposal of assets and properties									5,000
Bad debt expense									761,000
Share-based compensation									3,246,000
Equity in earnings of real estate partnership									0
Changes in operating assets and liabilities:
Escrows and acquisition deposits									1,401,000
Accrued rent and accounts receivable									15,000
Receivable due from related party									0
Distributions from real estate partnership									0
Unamortized lease commissions									(852,000)
Prepaid expenses and other assets									504,000
Accounts payable and accrued expenses									(6,370,000)
Payable due to related party									0
Tenants' security deposits									75,000
Net cash provided by operating activities									18,942,000
Cash flows from investing activities:
Additions to real estate									(7,566,000)
Proceeds from sales of properties									4,433,000
Investment in real estate partnership									(649,000)
Proceeds from sales of marketable securities									30,000
Net cash provided by (used in) investing activities									(3,752,000)
Cash flows from financing activities:
Distributions paid to common shareholders									(22,348,000)
Distributions paid to OP unit holders									(604,000)
Payments of exchange offer costs									(128,000)
Net proceeds from credit facility									9,000,000
Repayments of notes payable									(1,923,000)
Repurchase of common shares									(1,059,000)
Net cash provided by (used in) financing activities									(17,062,000)
Net increase in cash, cash equivalents and restricted cash									(1,872,000)
Cash, cash equivalents and restricted cash at beginning of period		3,338,000		5,210,000					5,210,000	5,210,000	5,210,000
Cash, cash equivalents and restricted cash at end of period			3,338,000		5,210,000				3,338,000			5,210,000
Supplemental disclosure of cash flow information:
Cash paid for interest									12,377,000
Cash paid for taxes									392,000
Non cash investing and financing activities:
Disposal of fully depreciated real estate									960,000
Financed insurance premiums									1,273,000
Value of shares issued under dividend reinvestment plan									66,000
Value of common shares exchanged for OP units									752,000
Change in fair value of available-for-sale securities									18,000
Change in fair value of cash flow hedge									3,558,000
Reallocation of ownership percentage between parent and subsidiary									12,000
Previously Reported, September 30, 2018 10-Q
Cash flows from operating activities:
Net income										12,704,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization										22,100,000
Amortization of deferred loan costs										976,000
Loss on sale of marketable securities										20,000
Loss (gain) on sale or disposal of assets and properties										(4,360,000)
Bad debt expense										1,123,000
Share-based compensation										4,894,000
Equity in earnings of real estate partnership										0
Changes in operating assets and liabilities:
Escrows and acquisition deposits										214,000
Accrued rent and accounts receivable										(1,736,000)
Receivable due from related party										0
Distributions from real estate partnership										0
Unamortized lease commissions										(1,394,000)
Prepaid expenses and other assets										618,000
Accounts payable and accrued expenses										(2,924,000)
Payable due to related party										0
Tenants' security deposits										226,000
Net cash provided by operating activities										32,461,000
Cash flows from investing activities:
Acquisitions of real estate										0
Additions to real estate										(11,300,000)
Proceeds from sales of properties										12,574,000
Proceeds from financed receivable due from related party										0
Investment in real estate partnership										843,000
Proceeds from sales of marketable securities										30,000
Net cash provided by (used in) investing activities										2,147,000
Cash flows from financing activities:
Distributions paid to common shareholders										(33,642,000)
Distributions paid to OP unit holders										(890,000)
Payments of exchange offer costs										(128,000)
Net proceeds from credit facility										9,000,000
Repayments of notes payable										(2,949,000)
Payments of loan origination costs										(30,000)
Repurchase of common shares										(1,699,000)
Net cash provided by (used in) financing activities										(30,338,000)
Net increase in cash, cash equivalents and restricted cash										4,270,000
Cash, cash equivalents and restricted cash at beginning of period	9,480,000			5,210,000					5,210,000	5,210,000	5,210,000
Cash, cash equivalents and restricted cash at end of period		9,480,000			5,210,000					9,480,000		5,210,000
Supplemental disclosure of cash flow information:
Cash paid for interest										19,879,000
Cash paid for taxes										392,000
Non cash investing and financing activities:
Disposal of fully depreciated real estate										963,000
Financed insurance premiums										1,273,000
Value of shares issued under dividend reinvestment plan										101,000
Value of common shares exchanged for OP units										1,545,000
Change in fair value of available-for-sale securities										18,000
Change in fair value of cash flow hedge										4,163,000
Reallocation of ownership percentage between parent and subsidiary										24,000
Recognition of Pillarstone OP Investment under equity method accounting | Adjustments
Cash flows from operating activities:
Net income		196,000	250,000	35,000					407,000	603,000
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in earnings of real estate partnership		(502,000)	(586,000)	(674,000)					(1,260,000)	(1,762,000)
Recognition of Pillarstone OP Investment under equity method accounting | Adjustments, March 31, 2018 10-Q
Cash flows from operating activities:
Net income				35,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization				(947,000)
Amortization of deferred loan costs				(25,000)
Loss on sale of marketable securities				0
Loss (gain) on sale or disposal of assets and properties				0
Bad debt expense				(32,000)
Share-based compensation				0
Equity in earnings of real estate partnership				(674,000)
Changes in operating assets and liabilities:
Escrows and acquisition deposits				(1,055,000)
Accrued rent and accounts receivable				534,000
Receivable due from related party				110,000
Distributions from real estate partnership				505,000
Unamortized lease commissions				90,000
Prepaid expenses and other assets				(57,000)
Accounts payable and accrued expenses				1,531,000
Payable due to related party				(980,000)
Tenants' security deposits				(71,000)
Net cash provided by operating activities				(1,036,000)
Cash flows from investing activities:
Additions to real estate				1,047,000
Proceeds from sales of properties				0
Investment in real estate partnership				0
Proceeds from sales of marketable securities				0
Net cash provided by (used in) investing activities				1,047,000
Cash flows from financing activities:
Distributions paid to common shareholders				0
Distributions paid to OP unit holders				0
Distributions paid to noncontrolling interest in Consolidated Partnership				115,000
Net proceeds from credit facility				0
Repayments of notes payable				325,000
Payments of loan origination costs				0
Repurchase of common shares				0
Net cash provided by (used in) financing activities				440,000
Net increase in cash, cash equivalents and restricted cash				451,000
Cash, cash equivalents and restricted cash at beginning of period			(2,361,000)	(2,812,000)					(2,812,000)	(2,812,000)	(2,812,000)
Cash, cash equivalents and restricted cash at end of period				(2,361,000)	(2,812,000)							(2,812,000)
Supplemental disclosure of cash flow information:
Cash paid for interest				(510,000)
Non cash investing and financing activities:
Financed insurance premiums				0
Value of shares issued under dividend reinvestment plan				0
Value of common shares exchanged for OP units				0
Change in fair value of available-for-sale securities				0
Change in fair value of cash flow hedge				0
Recognition of Pillarstone OP Investment under equity method accounting | Adjustments, June 30, 2018 10-Q
Cash flows from operating activities:
Net income									407,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization									(2,050,000)
Amortization of deferred loan costs									(50,000)
Loss on sale of marketable securities									0
Loss (gain) on sale or disposal of assets and properties									(1,000)
Bad debt expense									(99,000)
Share-based compensation									0
Equity in earnings of real estate partnership									(1,260,000)
Changes in operating assets and liabilities:
Escrows and acquisition deposits									0
Accrued rent and accounts receivable									(1,000)
Receivable due from related party									232,000
Distributions from real estate partnership									505,000
Unamortized lease commissions									0
Prepaid expenses and other assets									2,000
Accounts payable and accrued expenses									(40,000)
Payable due to related party									(612,000)
Tenants' security deposits									0
Net cash provided by operating activities									(2,967,000)
Cash flows from investing activities:
Additions to real estate									1,669,000
Proceeds from sales of properties									0
Investment in real estate partnership									649,000
Proceeds from sales of marketable securities									0
Net cash provided by (used in) investing activities									2,318,000
Cash flows from financing activities:
Distributions paid to common shareholders									0
Distributions paid to OP unit holders									0
Payments of exchange offer costs									0
Net proceeds from credit facility									0
Repayments of notes payable									649,000
Repurchase of common shares									0
Net cash provided by (used in) financing activities									649,000
Net increase in cash, cash equivalents and restricted cash									0
Cash, cash equivalents and restricted cash at beginning of period		0		0					0	0	0
Cash, cash equivalents and restricted cash at end of period			$ 0		0				0			0
Supplemental disclosure of cash flow information:
Cash paid for interest									(1,022,000)
Cash paid for taxes									(88,000)
Non cash investing and financing activities:
Disposal of fully depreciated real estate									(56,000)
Financed insurance premiums									0
Value of shares issued under dividend reinvestment plan									0
Value of common shares exchanged for OP units									0
Change in fair value of available-for-sale securities									0
Change in fair value of cash flow hedge									0
Reallocation of ownership percentage between parent and subsidiary									0
Recognition of Pillarstone OP Investment under equity method accounting | Adjustments, September 30, 2018 10-Q
Cash flows from operating activities:
Net income										603,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization										(3,056,000)
Amortization of deferred loan costs										(74,000)
Loss on sale of marketable securities										0
Loss (gain) on sale or disposal of assets and properties										(13,000)
Bad debt expense										(153,000)
Share-based compensation										0
Equity in earnings of real estate partnership										(1,762,000)
Changes in operating assets and liabilities:
Escrows and acquisition deposits										0
Accrued rent and accounts receivable										12,000
Receivable due from related party										696,000
Distributions from real estate partnership										505,000
Unamortized lease commissions										(2,000)
Prepaid expenses and other assets										1,000
Accounts payable and accrued expenses										(55,000)
Payable due to related party										(403,000)
Tenants' security deposits										0
Net cash provided by operating activities										(3,701,000)
Cash flows from investing activities:
Acquisitions of real estate										0
Additions to real estate										2,567,000
Proceeds from sales of properties										0
Proceeds from financed receivable due from related party										1,000,000
Investment in real estate partnership										(843,000)
Proceeds from sales of marketable securities										0
Net cash provided by (used in) investing activities										2,724,000
Cash flows from financing activities:
Distributions paid to common shareholders										0
Distributions paid to OP unit holders										0
Payments of exchange offer costs										0
Net proceeds from credit facility										0
Repayments of notes payable										977,000
Payments of loan origination costs										0
Repurchase of common shares										0
Net cash provided by (used in) financing activities										977,000
Net increase in cash, cash equivalents and restricted cash										0
Cash, cash equivalents and restricted cash at beginning of period	$ 0			$ 0					$ 0	0	$ 0
Cash, cash equivalents and restricted cash at end of period		$ 0			$ 0					0		$ 0
Supplemental disclosure of cash flow information:
Cash paid for interest										(1,698,000)
Cash paid for taxes										(88,000)
Non cash investing and financing activities:
Disposal of fully depreciated real estate										(59,000)
Financed insurance premiums										0
Value of shares issued under dividend reinvestment plan										0
Value of common shares exchanged for OP units										0
Change in fair value of available-for-sale securities										0
Change in fair value of cash flow hedge										0
Reallocation of ownership percentage between parent and subsidiary										$ 0

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event [Member]	Jan. 31, 2019USD ($)
2019 Facility [Member]
Subsequent Event [Line Items]
Credit facility, covenant, total debt to total assets ratio, maximum	0.60
Credit facility, covenant, secured debt to total assets ratio, maximum	0.40
Credit facility, covenant, EBITDA to fixed charges ratio, minimum	1.50
Credit facility, covenant, other recourse debt to total assets ratio, maximum	0.15
Credit facility, covenant, tangible net worth threshold before percentage of aggregate net proceeds, amount	$ 372,000,000
Credit facility, covenant, tangible net worth, percentage of aggregate net proceeds, minimum	75.00%
2019 Facility [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Credit facility, accordion feature, increase limit	$ 200,000,000
2018 Facility [Member]
Subsequent Event [Line Items]
Repayments of long-term debt	446,200,000
Unsecured Line of Credit [Member] | 2019 Revolver [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Credit facility, maximum borrowing capacity	250,000,000
Unsecured Line of Credit [Member] | Term Loan A [Member] | Term Loan [Member]
Subsequent Event [Line Items]
Credit facility, maximum borrowing capacity	165,000,000
Unsecured Line of Credit [Member] | Term Loan B [Member] | Term Loan [Member]
Subsequent Event [Line Items]
Credit facility, maximum borrowing capacity	$ 100,000,000

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2018	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Charged to Cost and Expense	$ 446	$ 662	$ 970	$ 1,391	$ 2,340	$ 1,585
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 8,608	$ 8,608	$ 8,608	8,608	7,133	6,647
Deductions from Reserves				(253)	(865)	(1,099)
Balance at End of Year				$ 9,746	$ 8,608	$ 7,133

Schedule III - Real Estate an_2

Schedule III - Real Estate and Accumulated Depreciation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018
Gross Amount at which Carried at End of Period
Total	$ 1,149,454,000	$ 920,310,000	$ 835,538,000	$ 1,052,238,000
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at beginning of period	1,149,454,000	920,310,000	835,538,000
Cumulative effect of accounting change for adoption of ASU 2017-05.	(95,146,000)	0	0
Additions during the period:
Acquisitions	0	213,545,000	69,749,000
Improvements	11,638,000	17,575,000	22,036,000
Real estate, total additions	(83,508,000)	231,120,000	91,785,000
Deductions - cost of real estate sold or retired	(13,708,000)	(1,976,000)	(7,013,000)
Balance at close of period	$ 1,052,238,000	$ 1,149,454,000	$ 920,310,000
New acquisitions through earlier attainment, percent occupancy				90.00%
New acquisitions through earlier attainment, term of ownership	18 months
Anthem Marketplace [Member]
Additions during the period:
Amount of encumbrances				$ 15,100,000
BLVD Place [Member]
Additions during the period:
Amount of encumbrances				80,000,000
Headquarters Village [Member]
Additions during the period:
Amount of encumbrances				19,000,000
Pinnacle of Scottsdale [Member]
Additions during the period:
Amount of encumbrances				14,100,000
Shops at Pecos Ranch [Member]
Additions during the period:
Amount of encumbrances				14,000,000
Shops at Starwood [Member]
Additions during the period:
Amount of encumbrances				14,300,000
Terravita Marketplace [Member]
Additions during the period:
Amount of encumbrances				10,500,000
Village Square at Dana Park [Member]
Additions during the period:
Amount of encumbrances				2,600,000
Woodlake Plaza [Member]
Additions during the period:
Amount of encumbrances				6,500,000
Various Properties owned in Unconsolidated Real Estate Partnership [Member]
Additions during the period:
Amount of encumbrances				37,000,000
Other [Member]
Additions during the period:
Amount of encumbrances				16,500,000
Whitestone [Member]
Initial Cost
Land				305,411,000
Building and Improvements				670,901,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				73,720,000
Carrying Costs				2,206,000
Gross Amount at which Carried at End of Period
Land				305,411,000
Building and Improvements				746,827,000
Total	$ 1,052,238,000			1,052,238,000
Accumulated Depreciation				113,300,000
Additions during the period:
Balance at close of period	1,052,238,000
Aggregate cost of real estate for federal income tax purposes				1,019,001,000
Whitestone [Member] | Retail Communities [Member]
Initial Cost
Land				288,815,000
Building and Improvements				670,901,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				72,512,000
Carrying Costs				2,206,000
Gross Amount at which Carried at End of Period
Land				288,815,000
Building and Improvements				745,619,000
Total	1,034,434,000			1,034,434,000
Accumulated Depreciation				113,300,000
Additions during the period:
Balance at close of period	1,034,434,000
Whitestone [Member] | Retail Communities [Member] | Ahwatukee Plaza [Member]
Initial Cost
Land				5,126,000
Building and Improvements				4,086,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				320,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				5,126,000
Building and Improvements				4,406,000
Total	9,532,000			9,532,000
Accumulated Depreciation				823,000
Additions during the period:
Balance at close of period	9,532,000
Whitestone [Member] | Retail Communities [Member] | Anthem Marketplace [Member]
Initial Cost
Land				4,790,000
Building and Improvements				17,973,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,132,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				4,790,000
Building and Improvements				19,105,000
Total	23,895,000			23,895,000
Accumulated Depreciation				2,659,000
Additions during the period:
Balance at close of period	23,895,000
Whitestone [Member] | Retail Communities [Member] | Bissonnet Beltway [Member]
Initial Cost
Land				415,000
Building and Improvements				1,947,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				469,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				415,000
Building and Improvements				2,416,000
Total	2,831,000			2,831,000
Accumulated Depreciation				1,866,000
Additions during the period:
Balance at close of period	2,831,000
Whitestone [Member] | Retail Communities [Member] | BLVD Place [Member]
Initial Cost
Land				63,893,000
Building and Improvements				90,942,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				513,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				63,893,000
Building and Improvements				91,455,000
Total	155,348,000			155,348,000
Accumulated Depreciation				3,740,000
Additions during the period:
Balance at close of period	155,348,000
Whitestone [Member] | Retail Communities [Member] | The Citadel [Member]
Initial Cost
Land				472,000
Building and Improvements				1,777,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				2,614,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				472,000
Building and Improvements				4,391,000
Total	4,863,000			4,863,000
Accumulated Depreciation				1,757,000
Additions during the period:
Balance at close of period	4,863,000
Whitestone [Member] | Retail Communities [Member] | City View Village [Member]
Initial Cost
Land				2,044,000
Building and Improvements				4,149,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				98,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				2,044,000
Building and Improvements				4,247,000
Total	6,291,000			6,291,000
Accumulated Depreciation				415,000
Additions during the period:
Balance at close of period	6,291,000
Whitestone [Member] | Retail Communities [Member] | Davenport Village [Member]
Initial Cost
Land				11,367,000
Building and Improvements				34,101,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,241,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				11,367,000
Building and Improvements				35,342,000
Total	46,709,000			46,709,000
Accumulated Depreciation				3,498,000
Additions during the period:
Balance at close of period	46,709,000
Whitestone [Member] | Retail Communities [Member] | Desert Canyon [Member]
Initial Cost
Land				1,976,000
Building and Improvements				1,704,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,796,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				1,976,000
Building and Improvements				3,500,000
Total	5,476,000			5,476,000
Accumulated Depreciation				638,000
Additions during the period:
Balance at close of period	5,476,000
Whitestone [Member] | Retail Communities [Member] | El Dorado Plaza [Member]
Initial Cost
Land				16,551,000
Building and Improvements				30,746,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				264,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				16,551,000
Building and Improvements				31,010,000
Total	47,561,000			47,561,000
Accumulated Depreciation				1,257,000
Additions during the period:
Balance at close of period	47,561,000
Whitestone [Member] | Retail Communities [Member] | Fountain Hills Plaza [Member]
Initial Cost
Land				5,113,000
Building and Improvements				15,340,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				215,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				5,113,000
Building and Improvements				15,555,000
Total	20,668,000			20,668,000
Accumulated Depreciation				2,167,000
Additions during the period:
Balance at close of period	20,668,000
Whitestone [Member] | Retail Communities [Member] | Fountain Square [Member]
Initial Cost
Land				5,573,000
Building and Improvements				9,828,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				2,289,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				5,573,000
Building and Improvements				12,117,000
Total	17,690,000			17,690,000
Accumulated Depreciation				2,293,000
Additions during the period:
Balance at close of period	17,690,000
Whitestone [Member] | Retail Communities [Member] | Fulton Ranch Towne Center [Member]
Initial Cost
Land				7,604,000
Building and Improvements				22,612,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				2,226,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				7,604,000
Building and Improvements				24,838,000
Total	32,442,000			32,442,000
Accumulated Depreciation				2,561,000
Additions during the period:
Balance at close of period	32,442,000
Whitestone [Member] | Retail Communities [Member] | Gilbert Tuscany Village [Member]
Initial Cost
Land				1,767,000
Building and Improvements				3,233,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,591,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				1,767,000
Building and Improvements				4,824,000
Total	6,591,000			6,591,000
Accumulated Depreciation				1,453,000
Additions during the period:
Balance at close of period	6,591,000
Whitestone [Member] | Retail Communities [Member] | Gilbert Tuscany Village Hard Corner [Member]
Initial Cost
Land				856,000
Building and Improvements				794,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				168,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				856,000
Building and Improvements				962,000
Total	1,818,000			1,818,000
Accumulated Depreciation				75,000
Additions during the period:
Balance at close of period	1,818,000
Whitestone [Member] | Retail Communities [Member] | Heritage Trace Plaza [Member]
Initial Cost
Land				6,209,000
Building and Improvements				13,821,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				377,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				6,209,000
Building and Improvements				14,198,000
Total	20,407,000			20,407,000
Accumulated Depreciation				1,713,000
Additions during the period:
Balance at close of period	20,407,000
Whitestone [Member] | Retail Communities [Member] | Headquarters Village [Member]
Initial Cost
Land				7,171,000
Building and Improvements				18,439,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,002,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				7,171,000
Building and Improvements				19,441,000
Total	26,612,000			26,612,000
Accumulated Depreciation				3,082,000
Additions during the period:
Balance at close of period	26,612,000
Whitestone [Member] | Retail Communities [Member] | Keller Place [Member]
Initial Cost
Land				5,977,000
Building and Improvements				7,577,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				703,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				5,977,000
Building and Improvements				8,280,000
Total	14,257,000			14,257,000
Accumulated Depreciation				715,000
Additions during the period:
Balance at close of period	14,257,000
Whitestone [Member] | Retail Communities [Member] | Kempwood Plaza [Member]
Initial Cost
Land				733,000
Building and Improvements				1,798,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,989,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				733,000
Building and Improvements				3,787,000
Total	4,520,000			4,520,000
Accumulated Depreciation				1,592,000
Additions during the period:
Balance at close of period	4,520,000
Whitestone [Member] | Retail Communities [Member] | La Mirada [Member]
Initial Cost
Land				12,853,000
Building and Improvements				24,464,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				834,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				12,853,000
Building and Improvements				25,298,000
Total	38,151,000			38,151,000
Accumulated Depreciation				1,484,000
Additions during the period:
Balance at close of period	38,151,000
Whitestone [Member] | Retail Communities [Member] | Lion Square [Member]
Initial Cost
Land				1,546,000
Building and Improvements				4,289,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				4,455,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				1,546,000
Building and Improvements				8,744,000
Total	10,290,000			10,290,000
Accumulated Depreciation				4,691,000
Additions during the period:
Balance at close of period	10,290,000
Whitestone [Member] | Retail Communities [Member] | MarketPlace at Central [Member]
Initial Cost
Land				1,305,000
Building and Improvements				5,324,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,330,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				1,305,000
Building and Improvements				6,654,000
Total	7,959,000			7,959,000
Accumulated Depreciation				1,698,000
Additions during the period:
Balance at close of period	7,959,000
Whitestone [Member] | Retail Communities [Member] | Market Street at DC Ranch [Member]
Initial Cost
Land				9,710,000
Building and Improvements				26,779,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				4,876,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				9,710,000
Building and Improvements				31,655,000
Total	41,365,000			41,365,000
Accumulated Depreciation				5,348,000
Additions during the period:
Balance at close of period	41,365,000
Whitestone [Member] | Retail Communities [Member] | Mercado at Scottsdale Ranch [Member]
Initial Cost
Land				8,728,000
Building and Improvements				12,560,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,548,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				8,728,000
Building and Improvements				14,108,000
Total	22,836,000			22,836,000
Accumulated Depreciation				2,100,000
Additions during the period:
Balance at close of period	22,836,000
Whitestone [Member] | Retail Communities [Member] | Paradise Plaza [Member]
Initial Cost
Land				6,155,000
Building and Improvements				10,221,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,266,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				6,155,000
Building and Improvements				11,487,000
Total	17,642,000			17,642,000
Accumulated Depreciation				2,097,000
Additions during the period:
Balance at close of period	17,642,000
Whitestone [Member] | Retail Communities [Member] | Parkside Village North [Member]
Initial Cost
Land				3,877,000
Building and Improvements				8,629,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				199,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				3,877,000
Building and Improvements				8,828,000
Total	12,705,000			12,705,000
Accumulated Depreciation				814,000
Additions during the period:
Balance at close of period	12,705,000
Whitestone [Member] | Retail Communities [Member] | Parkside Village South [Member]
Initial Cost
Land				5,562,000
Building and Improvements				27,154,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				160,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				5,562,000
Building and Improvements				27,314,000
Total	32,876,000			32,876,000
Accumulated Depreciation				2,479,000
Additions during the period:
Balance at close of period	32,876,000
Whitestone [Member] | Retail Communities [Member] | Pima Norte [Member]
Initial Cost
Land				1,086,000
Building and Improvements				7,162,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				2,149,000
Carrying Costs				517,000
Gross Amount at which Carried at End of Period
Land				1,086,000
Building and Improvements				9,828,000
Total	10,914,000			10,914,000
Accumulated Depreciation				2,822,000
Additions during the period:
Balance at close of period	10,914,000
Whitestone [Member] | Retail Communities [Member] | Pinnacle of Scottsdale [Member]
Initial Cost
Land				6,648,000
Building and Improvements				22,466,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,665,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				6,648,000
Building and Improvements				24,131,000
Total	30,779,000			30,779,000
Accumulated Depreciation				4,648,000
Additions during the period:
Balance at close of period	30,779,000
Whitestone [Member] | Retail Communities [Member] | Pinnacle of Scottsdale Phase II [Member]
Initial Cost
Land				883,000
Building and Improvements				4,659,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,998,000
Carrying Costs				592,000
Gross Amount at which Carried at End of Period
Land				883,000
Building and Improvements				7,249,000
Total	8,132,000			8,132,000
Accumulated Depreciation				598,000
Additions during the period:
Balance at close of period	8,132,000
Whitestone [Member] | Retail Communities [Member] | The Promenade at Fulton Ranch [Member]
Initial Cost
Land				5,198,000
Building and Improvements				13,367,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				661,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				5,198,000
Building and Improvements				14,028,000
Total	19,226,000			19,226,000
Accumulated Depreciation				1,475,000
Additions during the period:
Balance at close of period	19,226,000
Whitestone [Member] | Retail Communities [Member] | Providence [Member]
Initial Cost
Land				918,000
Building and Improvements				3,675,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				2,321,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				918,000
Building and Improvements				5,996,000
Total	6,914,000			6,914,000
Accumulated Depreciation				2,261,000
Additions during the period:
Balance at close of period	6,914,000
Whitestone [Member] | Retail Communities [Member] | Quinlan Crossing [Member]
Initial Cost
Land				9,561,000
Building and Improvements				28,683,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				640,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				9,561,000
Building and Improvements				29,323,000
Total	38,884,000			38,884,000
Accumulated Depreciation				2,525,000
Additions during the period:
Balance at close of period	38,884,000
Whitestone [Member] | Retail Communities [Member] | Seville [Member]
Initial Cost
Land				6,913,000
Building and Improvements				25,518,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				567,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				6,913,000
Building and Improvements				26,085,000
Total	32,998,000			32,998,000
Accumulated Depreciation				1,541,000
Additions during the period:
Balance at close of period	32,998,000
Whitestone [Member] | Retail Communities [Member] | Shaver [Member]
Initial Cost
Land				184,000
Building and Improvements				633,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				82,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				184,000
Building and Improvements				715,000
Total	899,000			899,000
Accumulated Depreciation				358,000
Additions during the period:
Balance at close of period	899,000
Whitestone [Member] | Retail Communities [Member] | Shops at Pecos Ranch [Member]
Initial Cost
Land				3,781,000
Building and Improvements				15,123,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				744,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				3,781,000
Building and Improvements				15,867,000
Total	19,648,000			19,648,000
Accumulated Depreciation				2,608,000
Additions during the period:
Balance at close of period	19,648,000
Whitestone [Member] | Retail Communities [Member] | Shops at Starwood [Member]
Initial Cost
Land				4,093,000
Building and Improvements				11,487,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				415,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				4,093,000
Building and Improvements				11,902,000
Total	15,995,000			15,995,000
Accumulated Depreciation				2,250,000
Additions during the period:
Balance at close of period	15,995,000
Whitestone [Member] | Retail Communities [Member] | Shops at Starwood Phase III [Member]
Initial Cost
Land				1,818,000
Building and Improvements				7,069,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				2,045,000
Carrying Costs				1,097,000
Gross Amount at which Carried at End of Period
Land				1,818,000
Building and Improvements				10,211,000
Total	12,029,000			12,029,000
Accumulated Depreciation				652,000
Additions during the period:
Balance at close of period	12,029,000
Whitestone [Member] | Retail Communities [Member] | The Shops at Williams Trace [Member]
Initial Cost
Land				5,920,000
Building and Improvements				14,297,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				599,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				5,920,000
Building and Improvements				14,896,000
Total	20,816,000			20,816,000
Accumulated Depreciation				1,590,000
Additions during the period:
Balance at close of period	20,816,000
Whitestone [Member] | Retail Communities [Member] | South Richey [Member]
Initial Cost
Land				778,000
Building and Improvements				2,584,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,917,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				778,000
Building and Improvements				4,501,000
Total	5,279,000			5,279,000
Accumulated Depreciation				2,319,000
Additions during the period:
Balance at close of period	5,279,000
Whitestone [Member] | Retail Communities [Member] | Spoerlein Commons [Member]
Initial Cost
Land				2,340,000
Building and Improvements				7,296,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				840,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				2,340,000
Building and Improvements				8,136,000
Total	10,476,000			10,476,000
Accumulated Depreciation				2,116,000
Additions during the period:
Balance at close of period	10,476,000
Whitestone [Member] | Retail Communities [Member] | The Strand at Huebner Oaks [Member]
Initial Cost
Land				5,805,000
Building and Improvements				12,335,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				383,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				5,805,000
Building and Improvements				12,718,000
Total	18,523,000			18,523,000
Accumulated Depreciation				1,486,000
Additions during the period:
Balance at close of period	18,523,000
Whitestone [Member] | Retail Communities [Member] | SugarPark Plaza [Member]
Initial Cost
Land				1,781,000
Building and Improvements				7,125,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,059,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				1,781,000
Building and Improvements				8,184,000
Total	9,965,000			9,965,000
Accumulated Depreciation				3,010,000
Additions during the period:
Balance at close of period	9,965,000
Whitestone [Member] | Retail Communities [Member] | Sunridge [Member]
Initial Cost
Land				276,000
Building and Improvements				1,186,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				606,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				276,000
Building and Improvements				1,792,000
Total	2,068,000			2,068,000
Accumulated Depreciation				886,000
Additions during the period:
Balance at close of period	2,068,000
Whitestone [Member] | Retail Communities [Member] | Sunset at Pinnacle Peak [Member]
Initial Cost
Land				3,610,000
Building and Improvements				2,734,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				736,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				3,610,000
Building and Improvements				3,470,000
Total	7,080,000			7,080,000
Accumulated Depreciation				729,000
Additions during the period:
Balance at close of period	7,080,000
Whitestone [Member] | Retail Communities [Member] | Terravita Marketplace [Member]
Initial Cost
Land				7,171,000
Building and Improvements				9,392,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				992,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				7,171,000
Building and Improvements				10,384,000
Total	17,555,000			17,555,000
Accumulated Depreciation				2,002,000
Additions during the period:
Balance at close of period	17,555,000
Whitestone [Member] | Retail Communities [Member] | Town Park [Member]
Initial Cost
Land				850,000
Building and Improvements				2,911,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				403,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				850,000
Building and Improvements				3,314,000
Total	4,164,000			4,164,000
Accumulated Depreciation				2,086,000
Additions during the period:
Balance at close of period	4,164,000
Whitestone [Member] | Retail Communities [Member] | Village Square at Dana Park [Member]
Initial Cost
Land				10,877,000
Building and Improvements				40,250,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				3,331,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				10,877,000
Building and Improvements				43,581,000
Total	54,458,000			54,458,000
Accumulated Depreciation				7,421,000
Additions during the period:
Balance at close of period	54,458,000
Whitestone [Member] | Retail Communities [Member] | Westchase [Member]
Initial Cost
Land				423,000
Building and Improvements				1,751,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				3,270,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				423,000
Building and Improvements				5,021,000
Total	5,444,000			5,444,000
Accumulated Depreciation				2,130,000
Additions during the period:
Balance at close of period	5,444,000
Whitestone [Member] | Retail Communities [Member] | Williams Trace Plaza [Member]
Initial Cost
Land				6,800,000
Building and Improvements				14,003,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				381,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				6,800,000
Building and Improvements				14,384,000
Total	21,184,000			21,184,000
Accumulated Depreciation				1,519,000
Additions during the period:
Balance at close of period	21,184,000
Whitestone [Member] | Retail Communities [Member] | Windsor Park [Member]
Initial Cost
Land				2,621,000
Building and Improvements				10,482,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				8,490,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				2,621,000
Building and Improvements				18,972,000
Total	21,593,000			21,593,000
Accumulated Depreciation				8,638,000
Additions during the period:
Balance at close of period	21,593,000
Whitestone [Member] | Retail Communities [Member] | Woodlake Plaza [Member]
Initial Cost
Land				1,107,000
Building and Improvements				4,426,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)				2,543,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				1,107,000
Building and Improvements				6,969,000
Total	8,076,000			8,076,000
Accumulated Depreciation				2,615,000
Additions during the period:
Balance at close of period	8,076,000
Whitestone [Member] | Land Held for Development [Member]
Initial Cost
Land				16,596,000
Building and Improvements				0
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,208,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				16,596,000
Building and Improvements				1,208,000
Total	17,804,000			17,804,000
Accumulated Depreciation				0
Additions during the period:
Balance at close of period	17,804,000
Whitestone [Member] | Land Held for Development [Member] | Anthem Marketplace [Member]
Initial Cost
Land				204,000
Building and Improvements				0
Costs Capitalized Subsequent to Acquisition
Improvements (net)				0
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				204,000
Building and Improvements				0
Total	204,000			204,000
Accumulated Depreciation				0
Additions during the period:
Balance at close of period	204,000
Whitestone [Member] | Land Held for Development [Member] | Market Street at DC Ranch [Member]
Initial Cost
Land				704,000
Building and Improvements				0
Costs Capitalized Subsequent to Acquisition
Improvements (net)				0
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				704,000
Building and Improvements				0
Total	704,000			704,000
Accumulated Depreciation				0
Additions during the period:
Balance at close of period	704,000
Whitestone [Member] | Land Held for Development [Member] | BLVD Place Phase II-B [Member]
Initial Cost
Land				10,500,000
Building and Improvements				0
Costs Capitalized Subsequent to Acquisition
Improvements (net)				1,155,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				10,500,000
Building and Improvements				1,155,000
Total	11,655,000			11,655,000
Accumulated Depreciation				0
Additions during the period:
Balance at close of period	11,655,000
Whitestone [Member] | Land Held for Development [Member] | Dana Park Development [Member]
Initial Cost
Land				4,000,000
Building and Improvements				0
Costs Capitalized Subsequent to Acquisition
Improvements (net)				25,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				4,000,000
Building and Improvements				25,000
Total	4,025,000			4,025,000
Accumulated Depreciation				0
Additions during the period:
Balance at close of period	4,025,000
Whitestone [Member] | Land Held for Development [Member] | Eldorado Plaza Development [Member]
Initial Cost
Land				911,000
Building and Improvements				0
Costs Capitalized Subsequent to Acquisition
Improvements (net)				28,000
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				911,000
Building and Improvements				28,000
Total	939,000			939,000
Accumulated Depreciation				0
Additions during the period:
Balance at close of period	939,000
Whitestone [Member] | Land Held for Development [Member] | Fountain Hills [Member]
Initial Cost
Land				277,000
Building and Improvements				0
Costs Capitalized Subsequent to Acquisition
Improvements (net)				0
Carrying Costs				0
Gross Amount at which Carried at End of Period
Land				277,000
Building and Improvements				0
Total	277,000			277,000
Accumulated Depreciation				$ 0
Additions during the period:
Balance at close of period	$ 277,000
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Ahwatukee Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Anthem Marketplace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Bissonnet Beltway [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | BLVD Place [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | The Citadel [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | City View Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Davenport Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Desert Canyon [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | El Dorado Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Fountain Hills Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Fountain Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Fulton Ranch Towne Center [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Gilbert Tuscany Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Gilbert Tuscany Village Hard Corner [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Heritage Trace Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Headquarters Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Keller Place [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Kempwood Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | La Mirada [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Lion Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | MarketPlace at Central [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Market Street at DC Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Mercado at Scottsdale Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Paradise Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Parkside Village North [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Parkside Village South [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Pima Norte [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Pinnacle of Scottsdale [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Pinnacle of Scottsdale Phase II [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | The Promenade at Fulton Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Providence [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Quinlan Crossing [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Seville [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Shaver [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Shops at Pecos Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Shops at Starwood [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Shops at Starwood Phase III [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | The Shops at Williams Trace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | South Richey [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Spoerlein Commons [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | The Strand at Huebner Oaks [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | SugarPark Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Sunridge [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Sunset at Pinnacle Peak [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Terravita Marketplace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Town Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Village Square at Dana Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Westchase [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Williams Trace Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Windsor Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Minimum [Member] | Retail Communities [Member] | Woodlake Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Ahwatukee Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Anthem Marketplace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Bissonnet Beltway [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | BLVD Place [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | The Citadel [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | City View Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Davenport Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Desert Canyon [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | El Dorado Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Fountain Hills Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Fountain Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Fulton Ranch Towne Center [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Gilbert Tuscany Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Gilbert Tuscany Village Hard Corner [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Heritage Trace Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Headquarters Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Keller Place [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Kempwood Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | La Mirada [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Lion Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | MarketPlace at Central [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Market Street at DC Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Mercado at Scottsdale Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Paradise Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Parkside Village North [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Parkside Village South [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Pima Norte [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Pinnacle of Scottsdale [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Pinnacle of Scottsdale Phase II [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | The Promenade at Fulton Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Providence [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Quinlan Crossing [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Seville [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Shaver [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Shops at Pecos Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Shops at Starwood [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Shops at Starwood Phase III [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | The Shops at Williams Trace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | South Richey [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Spoerlein Commons [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | The Strand at Huebner Oaks [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | SugarPark Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Sunridge [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Sunset at Pinnacle Peak [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Terravita Marketplace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Town Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Village Square at Dana Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Westchase [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Williams Trace Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Windsor Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Whitestone [Member] | Maximum [Member] | Retail Communities [Member] | Woodlake Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years

Uncategorized Items - wsr-20181

Label	Element	Value
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ 377,523,000
Additional Paid-in Capital [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	521,314,000
Retained Earnings [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	(157,565,000)
Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	19,119,000	[1]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	366,723,000
Common Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ 38,000
Common Stock, Shares, Outstanding	us-gaap_CommonStockSharesOutstanding	39,222,000
Noncontrolling Interest [Member]
Units of Partnership Interest, Amount	us-gaap_UnitsOfPartnershipInterestAmount	1,084,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ 10,800,000
AOCI Attributable to Parent [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ 2,936,000
[1]	Represents the impact of change in accounting principal for our modified retrospective adoption of ASU 2014-09. See Note 2 of the notes to the consolidated financial statements for additional disclosure.