Whitestone REIT (WSR) 10-K 2 Mar 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 26, 2015	Jun. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	Whitestone REIT
Entity Central Index Key	1175535
Current Fiscal Year End Date	-19
Entity Filer Category	Accelerated Filer
Document Type	10-K
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		22,837,405
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$334,089,772

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Real estate assets, at cost
Property	$673,655	$537,872
Accumulated depreciation	-71,587	-63,112
Total real estate assets	602,068	474,760
Cash and cash equivalents	4,236	6,491
Marketable securities	973	877
Escrows and acquisition deposits	4,092	2,094
Accrued rents and accounts receivable, net of allowance for doubtful accounts	11,834	9,768
Unamortized lease commissions and loan costs	8,879	6,143
Prepaid expenses and other assets	2,215	2,085
Other assets - discontinued operations	0	5,756
Total assets	634,297	507,974
Liabilities:
Notes payable	394,093	261,372
Accounts payable and accrued expenses	15,882	12,500
Tenants' security deposits	4,372	3,472
Dividends and distributions payable	6,627	6,418
Other liabilities - discontinued operations	0	3,297
Total liabilities	420,974	287,059
Commitments and contingencies:	0	0
Equity:
Preferred shares, $0.001 par value per share; 50,000,000 shares authorized; none issued and outstanding as of December 31, 2014 and December 31, 2013, respectively	0	0
Common shares, $0.001 par value per share; 400,000,000 shares authorized; 22,835,695 and 21,943,700 issued and outstanding as of December 31, 2014 and December 31, 2013, respectively	23	22
Additional paid-in capital	304,078	291,571
Accumulated other comprehensive loss	-93,938	-75,721
Accumulated deficit	-91	-54
Total Whitestone REIT shareholders' equity	210,072	215,818
Noncontrolling interest in subsidiary	3,251	5,097
Total equity	213,323	220,915
Total liabilities and equity	$634,297	$507,974

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Stockholders' Equity:
Preferred shares, par value per share (in dollars per share)	$0.00	$0.00
Preferred shares, shares authorized (in shares)	50,000,000	50,000,000
Preferred shares, shares issued (in shares)	0	0
Preferred shares, shares outstanding (in shares)	0	0
Common shares, par value per share (in dollars per share)	$0.00	$0.00
Common shares, authorized (in shares)	400,000,000	400,000,000
Common shares, issued (in shares)	22,835,695	21,943,700
Common shares, outstanding (in shares)	22,835,695	21,943,700

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Income (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property revenues
Rental revenues	$56,293	$47,297	$34,598
Other revenues	16,089	13,195	10,396
Total property revenues	72,382	60,492	44,994
Property expenses
Property operation and maintenance	15,405	14,079	10,627
Real estate taxes	9,747	8,599	6,215
Total property expenses	25,152	22,678	16,842
Other expenses (income)
General and administrative	15,274	10,912	7,616
Depreciation and amortization	15,725	13,100	9,889
Executive relocation expense	0	0	2,177
Interest expense	10,579	9,975	8,553
Interest, dividend and other investment income	-90	-136	-290
Total other expense	41,488	33,851	27,945
Income from continuing operations before loss on sale or disposal of assets and income taxes	5,742	3,963	207
Provision for income taxes	-282	-293	-275
Loss on sale or disposal of assets	-111	-49	-97
Income (loss) from continuing operations	5,349	3,621	-165
Income from discontinued operations	510	298	218
Gain on sale of property from discontinued operations	1,887	0	0
Income from discontinued operations	2,397	298	218
Net income	7,746	3,919	53
Less: Net income attributable to noncontrolling interests	160	125	3
Net income attributable to Whitestone REIT	7,586	3,794	50
Basic Earnings Per Share:
Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.23	$0.19	($0.01)
Income from discontinued operations attributable to Whitestone REIT (in dollars per share)	$0.10	$0.02	$0.01
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.33	$0.21	$0
Diluted Earnings Per Share:
Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.22	$0.19	($0.01)
Income from discontinued operations attributable to Whitestone REIT (in dollars per share)	$0.10	$0.01	$0.01
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.32	$0.20	$0
Weighted average number of common shares outstanding:
Basic (in shares)	22,278	18,027	13,496
Diluted (in shares)	22,793	18,273	13,613
Distributions declared per common share / OP unit (in dollars per share)	$1.14	$1.14	$1.14
Consolidated Statements of Comprehensive Income
Net income	7,746	3,919	53
Other comprehensive gain (loss)
Unrealized gain (loss) on cash flow hedging activities	-136	173	1
Unrealized gain on available-for-sale marketable securities	96	180	920
Comprehensive income	7,706	4,272	974
Less: Comprehensive income attributable to noncontrolling interests	160	136	57
Comprehensive income attributable to Whitestone REIT	$7,546	$4,136	$917

Consolidated_Statement_of_Chan

Consolidated Statement of Changes in Equity (USD $)		Total	ATM Program [Member]		Overnight Offering [Member]		Total Shareholders' Equity [Member]	Total Shareholders' Equity [Member]		Total Shareholders' Equity [Member]		Common Stock [Member]		Common Stock [Member]		Common Stock [Member]		Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member]		Additional Paid-in Capital [Member]		Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
In Thousands, except Share data, unless otherwise specified		USD ($)	USD ($)		USD ($)		USD ($)	ATM Program [Member]		Overnight Offering [Member]		USD ($)		ATM Program [Member]		Overnight Offering [Member]		USD ($)	ATM Program [Member]		Overnight Offering [Member]		USD ($)	USD ($)	USD ($)
								USD ($)		USD ($)									USD ($)		USD ($)
Beginning Balance at Dec. 31, 2011		$130,707					$115,958					$10						$158,127					($41,060)	($1,119)	$14,749
Beginning Balance (in units), at Dec. 31, 2011																									1,361,000
Beginning Balance (in shares), at Dec. 31, 2011												11,438,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of commons shares (in shares)	[1]											4,830,000
Issuance of common shares	[1]	58,679					58,666					5						58,674						-13	13
Exchange of noncontrolling interest OP units for common shares (in shares)												-676,000													-676,000
Exchange of noncontrolling interest OP units for common shares		0					7,146					1						7,272						-127	-7,146
Exchange offer costs		-479					-479											-479
Issuance of common shares under dividend reinvestment plan (in shares)												7,000
Issuance of common shares under dividend reinvestment plan		90					90											90
Shared-based compensation		8,000
Share-based compensation		553					553											553
Distributions		-17,637					-16,820																-16,820		-817
Unrealized gain on change in fair value of cash flow hedge		1					1																	1
Unrealized gain (loss) on change in fair value of available-for-sale marketable securities		920					866																866		54
Net income		53					50																50		3
Ending Balance at Dec. 31, 2012		172,887					166,031					16						224,237					-57,830	-392	6,856
Ending Balance (in units), at Dec. 31, 2012																									685,000
Ending Balance (in shares), at Dec. 31, 2012												16,943,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of commons shares (in shares)														282,000	[2]	4,600,000	[3]
Issuance of common shares			4,191	[2]	59,696	[3]		4,191	[2]	59,696	[3]	5	[3]						4,191	[2]	59,691	[3]
Exchange of noncontrolling interest OP units for common shares (in shares)												-123,000													-123,000
Exchange of noncontrolling interest OP units for common shares		0					1,234					1						1,236						-3	-1,234
Exchange offer costs		-40					-40											-40
Issuance of common shares under dividend reinvestment plan (in shares)												7,000
Issuance of common shares under dividend reinvestment plan		99					99											99
Shared-based compensation		11,000
Share-based compensation		2,157					2,157											2,157
Distributions		-22,347					-21,685																-21,685		-662
Unrealized gain on change in fair value of cash flow hedge		173					167																	167	6
Unrealized gain (loss) on change in fair value of available-for-sale marketable securities		180					174																	174	6
Net income		3,919					3,794																3,794		125
Ending Balance at Dec. 31, 2013		220,915					215,818					22						291,571					-75,721	-54	5,097
Ending Balance (in units), at Dec. 31, 2013																									562,000
Ending Balance (in shares), at Dec. 31, 2013		21,943,700										21,944,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of commons shares (in shares)	[4]											456,000
Issuance of common shares	[4]	6,458					6,458											6,458
Exchange of noncontrolling interest OP units for common shares (in shares)												-164,000													-164,000
Exchange of noncontrolling interest OP units for common shares		0					1,487					1						1,484						2	-1,487
Exchange offer costs		-136					-136											-136
Issuance of common shares under dividend reinvestment plan (in shares)												7,000
Issuance of common shares under dividend reinvestment plan		94					94											94
Repurchase of common shares (in shares)	[5]											-2,000
Repurchase of common shares	[5]	-24					-24											-24
Shared-based compensation		267,000
Share-based compensation		4,631					4,631											4,631
Distributions		-26,321					-25,803																-25,803		-518
Unrealized gain on change in fair value of cash flow hedge		-136					-133																	-133	-3
Unrealized gain (loss) on change in fair value of available-for-sale marketable securities		96					94																	94	2
Net income		7,746					7,586																7,586		160
Ending Balance at Dec. 31, 2014		$213,323					$210,072					$23						$304,078					($93,938)	($91)	$3,251
Ending Balance (in units), at Dec. 31, 2014																									398,000
Ending Balance (in shares), at Dec. 31, 2014		22,835,695										22,836,000
[1]	Net of offering costs of $3.1 million.
[2]	Net of offering costs of $0.2 million.
[3]	Net of offering costs of $2.6 million.
[4]	Net of offering costs of $0.1 million.
[5]	During the year ended December 31, 2014, 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_Statement_of_Chan1

Consolidated Statement of Changes in Equity (Parenthetical) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
ATM Program [Member]
Offering costs	$0.20
Overnight Offering [Member]
Offering costs	$2.60

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income (loss) from continuing operations	$5,349	$3,621	($165)
Net income from discontinued operations	2,397	298	218
Net income	7,746	3,919	53
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	15,725	13,100	9,889
Amortization of deferred loan costs	899	1,046	1,426
Amortization of notes payable discount	304	463	317
Gain on sale of marketable securities	0	-41	-110
Loss on sale or disposal of assets and properties	111	49	97
Bad debt expense	1,602	1,638	986
Share-based compensation	4,631	2,284	725
Changes in operating assets and liabilities:
Escrows and acquisition deposits	-1,998	4,920	-1,103
Accrued rent and accounts receivable	-3,668	-3,589	-2,906
Related party receivable	0	652	-652
Unamortized lease commissions	-1,526	-1,170	-943
Prepaid expenses and other assets	605	938	-506
Accounts payable and accrued expenses	2,257	-1,242	2,754
Tenants' security deposits	900	561	798
Net cash provided by operating activities	25,191	23,230	10,607
Net cash provided by operating activities of discontinued operations	450	654	611
Cash flows from investing activities:
Acquisitions of real estate	-129,439	-119,102	-98,350
Additions to real estate	-9,330	-6,138	-10,664
Investments in marketable securities	0	0	-750
Proceeds from sales of marketable securities	0	747	5,508
Net cash used in investing activities	-138,769	-124,493	-104,256
Net cash provided by (used in) investing activities of discontinued operations	7,311	-153	-151
Cash flows from financing activities:
Distributions paid to common shareholders	-25,539	-20,294	-15,324
Distributions paid to OP unit holders	-550	-691	-1,004
Proceeds from issuance of common shares, net of offering costs	6,458	63,887	58,679
Payments of exchange offer costs	-136	-40	-479
Proceeds from revolving credit facility, net	85,300	65,800	58,000
Proceeds from notes payable	47,300	105,710	0
Repayments of notes payable	-3,306	-110,829	-4,112
Payments of loan origination costs	-3,036	-2,796	-1,688
Repurchase of common shares	-24	0	0
Net cash provided by financing activities	106,467	100,747	94,072
Net cash used in financing activities of discontinued operations	-2,905	-38	-34
Net increase (decrease) in cash and cash equivalents	-2,255	-53	849
Cash and cash equivalents at beginning of period	6,491	6,544	5,695
Cash and cash equivalents at end of period	4,236	6,491	6,544
Supplemental disclosure of cash flow information:
Cash paid for interest	9,562	9,179	7,137
Cash paid for taxes	238	237	326
Non cash investing and financing activities:
Disposal of fully depreciated real estate	6,092	278	0
Financed insurance premiums	888	883	856
Value of shares issued under dividend reinvestment plan	94	99	90
Acquired interest rate swap	0	0	1,901
Debt discount on acquired note payable	0	0	-1,329
Value of common shares exchanged for OP units	1,484	1,236	7,272
Change in fair value of available-for-sale securities	96	180	920
Change in fair value of cash flow hedge	-136	173	1
Debt assumed with acquisitions of real estate	2,586	11,100	9,166
Interest supplement assumed with acquisition of real estate	$0	$932	$0

Description_of_Business_and_Na

Description of Business and Nature of Operations	12 Months Ended
	Dec. 31, 2014
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, 2014, 2013 and 2012, we owned and operated 63, 60, and 51 properties, respectively, including retail, warehouse and office properties in and around Houston, Dallas, San Antonio, Chicago and Phoenix.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
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, 2014, 2013 and 2012, 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.  All significant inter-company balances have been eliminated. 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.
	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. These reclassifications had no effect on net income, total assets, total liabilities or equity. During 2012, we reclassified the amortization of our loan fees, previously classified as general and administrative expenses, to interest expense for all periods presented. On June 27, 2012, our Class A and Class B common shares were consolidated into a single class of common shares. See Note 13 for additional discussion related to the consolidation of Class A and Class B common shares into a single class of common shares. During 2014, we reclassified certain properties classified as discontinued operations to conform to the current year presentation. See Note 4 for additional discussion.
	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 $4.7 million, $2.3 million and $0.7 million in share-based compensation expense for the years ended December 31, 2014, 2013 and 2012, respectively.
	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, 2014 and 2013 consisted of demand deposits at commercial banks and brokerage accounts.
	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, 2014, approximately $93,000 and $58,000 in interest expense and real estate taxes, respectively, were capitalized. For the year ended December 31, 2013, approximately $114,000 and $100,000 in interest expense and real estate taxes, respectively, were capitalized. For the year ended December 31, 2012, approximately $176,000 and $147,000 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, 2014.
	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, 2014 and 2013, we had an allowance for uncollectible accounts of $5.0 million and $3.6 million, respectively. As of December 31, 2014, 2013 and 2012, we recorded bad debt expense in the amount of $1.6 million, $1.6 million and $1.0 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. As part of the executive relocation arrangement discussed in Note 12, we issued a note receivable for $975,000 to the buyer, with an interest rate of 4.5% and a maturity of December 31, 2013. On December 5, 2013, the note was renewed through June 30, 2014 and bears interest at a rate of 5.2% during the renewal period. We are currently working with the buyer to renew the note receivable.
	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.  We have recorded a margin tax expense of $0.3 million for the Texas Margin Tax for each of the years ended December 31, 2014, 2013 and 2012.
	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 $394.9 million and $262.0 million as compared to the book value of approximately $394.1 million and $264.3 million as of December 31, 2014 and 2013, 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.
	Disclosure about fair value of financial instruments is based on pertinent information available to management as of December 31, 2014 and 2013. 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, 2014 and current estimates of fair value may differ significantly from the amounts presented herein.
	Derivative Instruments and Hedging Activities. We occasionally 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 (loss) and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. Any ineffective portion of a cash flow hedges' 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, 2014, 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 Houston, Dallas, San Antonio, Phoenix and Chicago 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 April 2014, the FASB issued guidance updating the criteria for reporting the disposal of a component of an entity as a discontinued operation. This guidance was effective for reporting periods beginning on or after December 15, 2014 with early adoption permitted only for disposals that have not been reported in financial statements previously issued or available for issuance. We have adopted the guidance for the year ended December 31, 2014.

Marketable_Securities

Marketable Securities	12 Months Ended
	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
MARKETABLE SECURITIES	MARKETABLE SECURITIES
	All of our marketable securities were classified as available-for-sale securities as of December 31, 2014, 2013 and 2012. Available-for-sale securities consist of the following (in thousands):
		December 31, 2014
		Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
	Real estate sector common stock	$	1,106	$	—	$	(133	)	$	973
	Total available-for-sale securities	$	1,106	$	—	$	(133	)	$	973
		December 31, 2013
		Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
	Real estate sector common stock	$	1,106	$	—	$	(229	)	$	877
	Total available-for-sale securities	$	1,106	$	—	$	(229	)	$	877
	During the year ended December 31, 2014, no available-for-sale securities were sold. During the years ended December 31, 2013 and 2012, available-for-sale securities were sold for total proceeds of $747,000 and $5,508,000, respectively. The gross realized gains and losses on these sales totaled $44,000 and $3,000, respectively, in 2013, and $152,000 and $42,000, respectively, in 2012. 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 $133,000 and $229,000 for the years ended December 31, 2014 and 2013, respectively, has been included in accumulated other comprehensive income.

Real_Estate

Real Estate	12 Months Ended
	Dec. 31, 2014
Real Estate [Abstract]
REAL ESTATE	REAL ESTATE
	As of December 31, 2014, we owned 63 commercial properties in the Houston, Dallas, San Antonio, Phoenix and Chicago areas comprised of approximately 5.5 million square feet of gross leasable area.
	Property Acquisitions. On December 24, 2014, we acquired the hard corner at our Village Square at Dana Park property for approximately $4.7 million, in exchange for the assumption of a $2.6 million non-recourse loan and cash of $2.1 million. The 12,047 square foot property was 88% leased at the time of purchase and is located in the Mesa submarket of Phoenix, Arizona. Revenue and income of $10,000 and $6,000, respectively, have been included in our results of operations for the year ended December 31, 2014 since the date of acquisition.
	On December 24, 2014, we acquired The Shops at Williams Trace, a property that meets our Community Centered Property strategy, for approximately $20.2 million in cash and net prorations. The 132,991 square foot property was 87% leased at the time of purchase and is located in Sugar Land, Texas. Revenue and income of $49,000 and $41,000, respectively, have been included in our results of operations for the year ended December 31, 2014 since the date of acquisition.
	On December 24, 2014, we acquired Williams Trace Plaza, a property that meets our Community Centered Property strategy, for approximately $20.4 million in cash and net prorations. The 129,222 square foot property was 95% leased at the time of purchase and is located in Sugar Land, Texas. Revenue and income of $40,000 and $32,000, respectively, have been included in our results of operations for the year ended December 31, 2014 since the date of acquisition.
	On December 19, 2014, we acquired a 1.39 acre parcel of undeveloped land for $0.9 million in cash and net prorations. The undeveloped land parcel is adjacent to our Fulton Ranch Towne Center property.
	On November 5, 2014, we acquired Fulton Ranch Towne Center, a property that meets our Community Centered Property strategy, for approximately $29.3 million in cash and net prorations. The 113,281 square foot property was 86% leased at the time of purchase and is located in Chandler, Arizona. Revenue and income of $399,000 and $228,000, respectively, have been included in our results of operations for the year ended December 31, 2014 since the date of acquisition.
	On November 5, 2014, we acquired The Promenade at Fulton Ranch, a property that meets our Community Centered Property strategy, for approximately $18.6 million in cash and net prorations. The 98,792 square foot property was 76% leased at the time of purchase and is located in Chandler, Arizona. Revenue and income of $283,000 and $146,000, respectively, have been included in our results of operations for the year ended December 31, 2014 since the date of acquisition.
	On September 19, 2014, we acquired The Strand at Huebner Oaks, a property that meets our Community Centered Property strategy, for approximately $18.0 million in cash and net prorations. The 73,920 square foot property was 90% leased at the time of purchase and is located in San Antonio, Texas. Revenue and income of $553,000 and $339,000, respectively, have been included in our results of operations for the year ended December 31, 2014 since the date of acquisition.
	On July 1, 2014, we acquired Heritage Trace Plaza, a property that meets our Community Centered Property strategy, for approximately $20.1 million in cash and net prorations. The 70,431 square foot property was 98% leased at the time of purchase and is located in Fort Worth, Texas. Revenue and income of $938,000 and $473,000, respectively, have been included in our results of operations for the year ended December 31, 2014 since the date of acquisition.
	On December 5, 2013, we acquired Market Street at DC Ranch, a property that meets our Community Centered Property strategy, for approximately $37.4 million in cash and net prorations. The 241,280 square foot property was 80% leased at the time of purchase and is located in Scottsdale, Arizona.
	On October 17, 2013, we acquired a 2.50 acre parcel for $2.8 million in cash and net prorations. The parcel is located in Spring, Texas, a suburb of Houston, and is contiguous to our Corporate Park Woodland property. At the time of purchase, the parcel had 16,220 square feet and was 63% leased.
	On October 7, 2013, we acquired Fountain Hills Plaza, a property that meets our Community Centered Property strategy, for approximately $20.6 million in cash and net prorations. The 111,289 square foot property was 87% leased at the time of purchase and is located in Fountain Hills, Arizona, a suburb of Phoenix.
	On June 28, 2013, we acquired Anthem Marketplace, a property that meets our Community Centered Property strategy, for approximately $23.3 million in cash and net prorations. The 113,293 square foot property was 100% leased at the time of purchase and is located in Phoenix, Arizona. In the same purchase, we also acquired an adjacent development pad site of 0.83 acres.
	On June 19, 2013, we acquired Mercado at Scottsdale Ranch, a property that meets our Community Centered Property strategy, for approximately $21.3 million, including the assumption of a $11.1 million non-recourse loan, a $0.9 million interest rate supplement and cash of $9.3 million. The 118,730 square foot property was 100% leased at the time of purchase and is located in Scottsdale, Arizona.
	On March 28, 2013, we acquired Headquarters Village Shopping Center, a property that meets our Community Centered Property strategy, for approximately $25.7 million in cash and net prorations. The 89,134 square foot property was 100% leased at the time of purchase and is located in Plano, Texas.
	On December 28, 2012, we acquired the Shops at Pecos Ranch, a property that meets our Community Centered Property strategy, for approximately $19.0 million in cash and net prorations. The 78,767 square foot property was 100% leased at the time of purchase and is located in Chandler, Arizona, a suburb of Phoenix.
	On September 21, 2012, we acquired Village Square at Dana Park, a property that meets our Community Centered Property strategy, for approximately $46.5 million in cash and net prorations. The 310,979 square foot property was 71% leased at the time of purchase and is located in the Mesa submarket of Phoenix, Arizona. In the same purchase, we also acquired an adjacent development parcel of 4.7 acres for approximately $4.0 million in cash.
	On September 21, 2012, we acquired Fountain Square, a property that meets our Community Centered Property strategy, for approximately $15.4 million in cash and net prorations. The 118,209 square foot property was 76% leased at the time of purchase and is located in Scottsdale, Arizona.
	On August 8, 2012, we acquired Paradise Plaza, a property that meets our Community Centered Property strategy, for approximately $16.3 million, including the assumption of a $9.2 million non-recourse loan, and cash of $7.1 million. The 125,898 square foot property was 100% leased at the time of purchase and is located in Paradise Valley, Arizona, a suburb of Phoenix.
	On May 29, 2012, we acquired Sunset at Pinnacle Peak, formerly the Shops at Pinnacle Peak, a property that meets our Community Centered Property strategy, for approximately $6.4 million in cash and net prorations. The 41,530 square foot property was 76% leased at the time of purchase and is located in North Scottsdale, Arizona.
	Unaudited pro forma results of operations. The pro forma unaudited results summarized below reflect our consolidated pro forma results of operations as if our acquisitions for the years ended December 31, 2014, 2013 and 2012 were acquired on January 1, 2012 and includes no other material adjustments:
	INCOME STATEMENT DATA	Year Ended December 31,
		2014		2013		2012
	Operating revenue	$	82,818	$	81,798	$	79,445
	Net income	$	10,910	$	10,422	$	9,072
	Acquisition costs. Acquisition-related costs of $1,341,000, $1,010,000 and $698,000 are included in general and administrative expenses in our income statements for the years ended December 31, 2014, 2013 and 2012, respectively.
	Property dispositions. On December 31, 2014, we completed the sale of three office buildings, Zeta, Royal Crest and Featherwood, located in the Clear Lake suburb of Houston, Texas, for $10.3 million. This disposition was pursuant to our strategy of recycling capital by disposing of non-core, primarily Legacy Properties that do not fit our Community Centered Property strategy. As part of the transaction, we provided short-term seller financing of $2.5 million. We recorded a gain on sale of $4.4 million, including recognizing a $1.9 million gain on sale for the year ended December 31, 2014 and deferring the remaining $2.5 million gain on sale to be recognized upon receipt of principal payments on the financing provided by us.
	The operating results for properties classified as discontinued operations consists of the following (in thousands):
		Year Ended December 31,
		2014		2013		2012
	Property revenues	$	1,626	$	1,653	$	1,560
	Property expenses	734		832		797
	Depreciation and amortization	314		329		340
	Interest expense	58		175		179
	Provision for income taxes	10		12		11
	Loss on sale or disposal of assets	—		7		15
	Operating income from discontinued operations	510		298		218
	Gain on sale of property from discontinued operations	1,887		—		—
	Income from discontinued operations	$	2,397	$	298	$	218

Accrued_Rents_and_Accounts_Rec

Accrued Rents and Accounts Receivable, Net	12 Months Ended
	Dec. 31, 2014
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,
		2014			2013
	Tenant receivables	$	7,998		$	5,623
	Accrued rents and other recoveries	8,800			7,758
	Allowance for doubtful accounts	(4,964		)	(3,613		)
	Totals	$	11,834		$	9,768

Unamortized_Lease_Commissions_

Unamortized Lease Commissions and Loan Costs	12 Months Ended
	Dec. 31, 2014
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,
		2014			2013
	Leasing commissions	$	5,936		$	6,306
	Deferred financing cost	5,785			5,146
	Total cost	11,721			11,452
	Less: leasing commissions accumulated amortization	(2,373		)	(3,378		)
	Less: deferred financing cost accumulated amortization	(469		)	(1,931		)
	Total cost, net of accumulated amortization	$	8,879		$	6,143
	A summary of expected future amortization of deferred costs is as follows (in thousands):
	Years Ended December 31,	Leasing Commissions			Deferred Financing Costs			Total
	2015	$	935		$	1,198		$	2,133
	2016	788			1,191			1,979
	2017	626			1,041			1,667
	2018	422			900			1,322
	2019	272			299			571
	Thereafter	520			687			1,207
	Total	$	3,563		$	5,316		$	8,879

Future_Minimum_Lease_Income

Future Minimum Lease Income	12 Months Ended
	Dec. 31, 2014
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, 2014 is as follows (in thousands):
	Years Ended December 31,	Minimum Future Rents
	2015	$	59,186
	2016	50,889
	2017	41,289
	2018	30,721
	2019	22,257
	Thereafter	68,886
	Total	$	273,228

Debt

Debt	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Debt Disclosure	DEBT
	Mortgages and other notes payable consist of the following (in thousands):
			December 31,
	Description		2014		2013
	Fixed rate notes
	$10.5 million, LIBOR plus 2.00% Note, due September 24, 2018 (1)		$	10,460	$	10,500
	$50.0 million, 0.84% plus 1.35% to 1.90% Note, due February 17, 2017 (2)		50,000		50,000
	$37.0 million 3.76% Note, due December 1, 2020		36,090		37,000
	$6.5 million 3.80% Note, due January 1, 2019		6,355		6,500
	$19.0 million 4.15% Note, due December 1, 2024		19,000		—
	$20.2 million 4.28% Note, due June 6, 2023		20,200		20,200
	$14.0 million 4.34% Note, due September 11, 2024		14,000		—
	$14.3 million 4.34% Note, due September 11, 2024		14,300		—
	$1.0 million 4.75% Note, due December 31, 2014		—		1,087
	$16.5 million 4.97% Note, due September 26, 2023		16,450		16,450
	$15.1 million 4.99% Note, due January 6, 2024		15,060		15,060
	$9.2 million, Prime Rate less 2.00%, due December 29, 2017 (3)		7,888		7,875
	$2.6 million 5.46% Note, due October 1, 2023		2,583		—
	$11.1 million 5.87% Note, due August 6, 2016		11,607		11,900
	Floating rate notes
	Unsecured line of credit, LIBOR plus 1.40% to 1.95%, due November 7, 2018		120,100		84,800
	$50.0 million, LIBOR plus 1.35% to 1.90% Note, due November 7, 2019		50,000		—
			$	394,093	$	261,372
	-1	Promissory note includes an interest rate swap that fixed the interest rate at 3.55% for the duration of the term.
	-2	Promissory note includes an interest rate swap that fixed the LIBOR portion of our $50 million term loan under our unsecured credit facility at 0.84%.
	(3)	Promissory note includes an interest rate swap that fixed the interest rate at 5.72% for the duration of the term. As part of our acquisition of Paradise Plaza in August 2012, we recorded a discount on the note of $1.3 million, which amortizes into interest expense over the life of the loan and results in an imputed interest rate of 4.13%.
	Our mortgage debt was collateralized by 20 operating properties as of December 31, 2014 with a combined net book value of $216.9 million and 19 operating properties as of December 31, 2013 with a combined net book value of $161.1 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 the assignment of certain rents and leases associated with those properties.
	On December 24, 2014, we assumed a $2.6 million promissory note as part of our acquisition of the hard corner at Village Square at Dana Park (see Note 4). The 5.46% fixed interest rate note matures October 1, 2023.
	On November 26, 2014, we, operating through our subsidiary, Whitestone Headquarters Village, LLC, a Delaware limited liability company, entered into a $19.0 million promissory note (the “Headquarters Note”), with a fixed interest rate of 4.15% payable to Morgan Stanley Bank, N.A. and a maturity date of December 1, 2024. Proceeds from the Headquarters Note were used to repay a portion of our unsecured revolving credit facility.
	On November 7, 2014, we, through our Operating Partnership, entered into an unsecured credit facility (the “2014 Facility”) with the lenders party thereto, with BMO Capital Markets, 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 credit facility. Proceeds from the 2014 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 2014 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.
	The 2014 Facility is comprised of three tranches:
	•	$400 million unsecured revolving credit facility (the “Revolver”);
	•	$50 million unsecured term loan (the “Term Loan 1”); and
	•	$50 million unsecured term loan (the “Term Loan 2”).
	The 2014 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. The Revolver will mature on November 7, 2018, with an option to extend for one additional year to November 7, 2019, subject to certain conditions, including payment of an extension fee. The Term Loan 1 will mature on February 17, 2017, and the Term Loan 2 will mature on November 7, 2019.
	Borrowings under the 2014 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. The applicable margin for Adjusted LIBOR borrowings ranges from 1.40% to 1.95% for the Revolver and 1.35% to 1.90% 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 will serve as the guarantor for funds borrowed by the Operating Partnership under the 2014 Facility. The 2014 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 2014 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.
	On September 3, 2014, we, operating through our subsidiary, Whitestone Pecos Ranch, LLC, a Delaware limited liability company, entered into a $14.0 million promissory note (the “Pecos Note”), with a fixed interest rate of 4.34% payable to Wells Fargo Bank, National Association and a maturity date of September 11, 2024. Proceeds from the Pecos Note were used to repay a portion of our unsecured revolving credit facility.
	On August 26, 2014, we, operating through our subsidiary, Whitestone Shops at Starwood, LLC, a Delaware limited liability company, entered into a $14.3 million promissory note (the “Starwood Note”), with a fixed interest rate of 4.34% payable to Wells Fargo Bank, National Association and a maturity date of September 11, 2024. Proceeds from the Starwood Note were used to repay a portion of our unsecured revolving credit facility.
	On December 23, 2013, we, operating through our subsidiary, Whitestone Woodlake Plaza, LLC, a Delaware limited liability company, entered into a $6.5 million promissory note (the “Woodlake Note”), with a fixed interest rate of 3.80% payable to Western Reserve Life Assurance Company of Ohio and a maturity of January 1, 2019. Proceeds from the Woodlake Note were used to repay a portion of our unsecured revolving credit facility.
	On December 16, 2013, we, operating through our subsidiary, Whitestone Anthem Marketplace, LLC, a Delaware limited liability company, entered into a $15.1 million promissory note (the “Anthem Note”), with a fixed interest rate of 4.99% payable to Citigroup Global Markets Realty Corporation and a maturity of January 6, 2024. Proceeds from the Anthem Note were used to repay a portion of our unsecured revolving credit facility.
	On November 26, 2013, we, operating through our subsidiary, Whitestone Industrial-Office LLC, a Texas limited liability company (“Whitestone Industrial”), entered into a $37.0 million promissory note (the “Industrial Note”), with a fixed interest rate of 3.76% payable to Jackson Life National Insurance Company and a maturity of December 1, 2020. Proceeds from the Industrial Note were used to repay our existing $26.9 million floating rate loan that matured on December 1, 2013. The remainder of the proceeds were used to pay off approximately $10.1 million in fixed rate indebtedness maturing in 2014.
	The Industrial Note is a non-recourse loan secured by Whitestone Industrial's nine properties, including Corporate Park Woodland, Holly Hall Industrial Park, Interstate 10 Warehouse, Main Park, Plaza Park, Westbelt Plaza, Westgate Service Center, Corporate Park West and Dairy Ashford.
	On September 26, 2013, we, operating through our subsidiary, Whitestone Uptown Tower, LLC, a Delaware limited liability company (“Whitestone Uptown”), entered into a $16.5 million promissory note (the “Uptown Note”), with a fixed interest rate of 4.97% payable to Morgan Stanley Capital Holdings LLC and a maturity of September 26, 2023. Proceeds from the Uptown Note were used to repay a portion of our unsecured revolving credit facility.
	On September 24, 2013, we, operating through our subsidiary, Whitestone Terravita Marketplace, LLC, a Delaware limited liability company (“Whitestone Terravita”), entered into a $10.5 million promissory note (the “Terravita Note”), with an applicable interest rate of LIBOR plus 2.00%, payable to Bank of America, N.A. and a maturity of September 24, 2018. Proceeds from the Terravita Note were used to repay a portion of our unsecured revolving credit facility.
	The Terravita Note is a non-recourse loan secured by Whitestone Terravita's Terravita Marketplace property, located in Scottsdale, Arizona, and a limited guarantee by the Operating Partnership. In conjunction with the Terravita Note, a deed of trust was executed by Whitestone Terravita that contains customary terms and conditions, including representations, warranties and covenants by Whitestone Terravita that include, without limitation, assignment of rents, warranty of title, insurance requirements and maintenance, use and management of the property.
	On June 19, 2013, we assumed a $11.1 million promissory note as part of our acquisition of Mercado at Scottsdale Ranch (see Note 4). The 5.87% fixed interest rate note matures on August 16, 2016. In conjunction with our acquisition, we received an interest rate supplement from the seller in the amount of $932,000, which we will accrete into expense over the life of the note. As a result of the supplement, the imputed interest rate is 3.052%, which we consider to be an appropriate market rate.
	On May 31, 2013, we, operating through our subsidiary, Whitestone Pinnacle of Scottsdale, LLC, a Delaware limited liability company (“Whitestone Pinnacle”), refinanced our $14.1 million promissory note, with an applicable interest rate of 5.695% and a maturity of June 1, 2013, with a $20.2 million promissory note (the “Pinnacle Note”) payable to Cantor Commercial Real Estate Lending, L.P. with an applicable interest rate of 4.2805%, and a maturity of June 6, 2023.
	The Pinnacle Note is a non-recourse loan secured by Whitestone Pinnacle's Pinnacle of Scottsdale property, located in Scottsdale, Arizona, and a limited guarantee by Whitestone. In conjunction with the Pinnacle Note, a deed of trust was executed by Whitestone Pinnacle that contains customary terms and conditions, including representations, warranties and covenants by Whitestone Pinnacle that include, without limitation, assignment of rents, warranty of title, insurance requirements and maintenance, use and management of the property.
	The Pinnacle Note contains events of default that include, among other things, non-payment and default under the deed of trust. Upon occurrence of an event of default, the lender is entitled to accelerate all obligations of Whitestone Pinnacle. The lender will also be entitled to receive the entire unpaid balance and unpaid interest at a default rate.
	On August 8, 2012, we assumed a $9.2 million variable rate note as part of our acquisition of Paradise Plaza (See Note 4). The variable rate is based on the prime rate less 2.00% and matures on December 29, 2017. We consider the variable rate to be below-market and have imputed an interest rate of 4.13%, which we consider to be an appropriate market rate. As a result, we recorded a discount on the note of $1.3 million, which will amortize into interest expense over the life of the loan. See Note 9 for a discussion of the interest rate swap included with this note.
	As of December 31, 2014, $220.1 million was drawn on the 2014 Facility, and our remaining borrowing capacity was $279.9 million, assuming that we use proceeds of the 2014 Facility to acquire properties, or to repay debt on properties, that are eligible to be included in the unsecured borrowing base.
	Certain other of our loans are subject to customary covenants.  As of December 31, 2014, we were in compliance with all loan covenants.
	Annual maturities of notes payable as of December 31, 2014 are due during the following years:
			Amount Due
	Year		(in thousands)
	2015		$	1,855
	2016		13,269
	2017		60,213
	2018		132,236
	2019		58,049
	Thereafter		128,471
	Total		$	394,093
	Contractual Obligations
As of December 31, 2014, we had the following contractual obligations:
				Payment due by period (in thousands)
				Less than 1		1 - 3 years		3 - 5 years		More than
		Total		year (2014)		(2015 - 2016)		(2017 - 2018)		5 years
Contractual Obligations										(after 2018)
Long-Term Debt - Principal		$	394,093	$	1,855	$	73,482	$	190,285	$	128,471
Long-Term Debt - Fixed Interest		52,544		7,702		13,976		11,862		19,004
Long-Term Debt - Variable Interest (1)		9,206		3,134		4,411		1,661		—
Unsecured credit facility - Unused commitment fee (2)		2,741		700		1,400		641		—
Operating Lease Obligations		49		29		20		—		—
Total		$	458,633	$	13,420	$	93,289	$	204,449	$	147,475
(1)	As of December 31, 2014, we had two loans totaling $170.1 million which bore interest at a floating rate.  The variable interest rate payments are based on LIBOR plus 1.35% to LIBOR plus 1.95%, which reflects our new interest rates under our 2014 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, 2014, of 0.17%.
(2)	The unused commitment fees on our unsecured credit facility, payable quarterly, are based on the average daily unused amount of our unsecured credit 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 our unsecured credit facility based on our December 31, 2014 balance of $220.1 million.

Derivatives_and_Hedging_Activi

Derivatives and Hedging Activities (Notes)	12 Months Ended
	Dec. 31, 2014
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):
			Balance Sheet Location		Estimated Fair Value
	Interest rate swaps:
	31-Dec-14		Accounts payable and accrued expenses		$	1,016
	31-Dec-13		Accounts payable and accrued expenses		$	1,231
	On November 1, 2013, we, through our subsidiary, Whitestone Terravita, entered into an interest rate swap with Bank of America, N.A. that fixed the LIBOR portion of our $10.5 million term loan at 1.55%. See Note 8 for additional information regarding the Terravita Note. The swap began on November 1, 2013 and will mature on September 24, 2018. 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 (loss) 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.
	On March 8, 2013, we, through our Operating Partnership, entered into an interest rate swap with U.S. Bank National Association that fixed the LIBOR portion of our $50.0 million term loan under our unsecured credit facility at 0.84%. See Note 8 for additional information regarding our credit facility. The swap began on January 7, 2014 and will mature on February 3, 2017. 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 (loss) 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.
	On August 8, 2012, as part of our acquisition of Paradise Plaza (see Note 4), we assumed a $9.2 million variable rate note (see Note 8). The note included an interest rate swap that had a fixed interest rate of 5.72%. We have designated the interest rate swap as a cash flow hedge with the effective portion of the changes in fair value recorded in comprehensive income (loss) 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, is recognized directly in earnings.
	A summary of our interest rate swap activity is as follows (in thousands):
	Year Ended		Amount Recognized as Comprehensive Income (Loss)				Location of Loss Recognized in Earnings	Amount of Loss Recognized in Earnings (1)
	2014		$	(136	)		Interest expense	$	(838	)
	2013		$	173			Interest expense	$	(363	)
	2012		$	1			Interest expense	$	(146	)
	(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, 2014, 2013 and 2012.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2014
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, 2014, 2013 and 2012, 471,310, 595,782 and 848,284 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, 2014, 2013 and 2012, distributions of $272,000, $177,000 and $194,000, respectively, were made to the holders of certain restricted common shares, $71,000, $127,000 and $172,000 of which were charged against earnings, respectively.  See Note 14 for information related to restricted common shares under the 2008 Plan.
		Year Ended
		December 31,
	(in thousands, except per share data)	2014			2013			2012
	Numerator:
	Income (loss) from continuing operations	$	5,349		$	3,621		$	(165	)
	Less: Net (income) loss attributable to noncontrolling interests	(111		)	(115		)	10
	Distributions paid on unvested restricted shares	(201		)	(50		)	(22		)
	Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares	5,037			3,456			(177		)
	Income from discontinued operations	2,397			298			218
	Less: Net income attributable to noncontrolling interests	(49		)	(10		)	(13		)
	Income from discontinued operations attributable to Whitestone REIT	2,348			288			205
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	7,385		$	3,744		$	28
	Denominator:
	Weighted average number of common shares - basic	22,278			18,027			13,496
	Effect of dilutive securities:
	Unvested restricted shares	515			246			117
	Weighted average number of common shares - dilutive	22,793			18,273			13,613
	Earnings Per Share:
	Basic:
	Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares	$	0.23		$	0.19		$	(0.01	)
	Income from discontinued operations attributable to Whitestone REIT	0.1			0.02			0.01
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.33		$	0.21		$	0
	Diluted:
	Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares	$	0.22		$	0.19		$	(0.01	)
	Income from discontinued operations attributable to Whitestone REIT	0.1			0.01			0.01
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.32		$	0.2		$	0

Federal_Income_Taxes

Federal Income Taxes	12 Months Ended
	Dec. 31, 2014
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 Internal Revenue 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 (including any applicable alternative minimum tax) on our taxable income at regular corporate tax rates.
	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:
		2014		2013		2012
	Ordinary income (unaudited)	53.3	%	38.5	%	34.1	%
	Return of capital (unaudited)	21.3	%	61.3	%	65.2	%
	Capital gain distributions (unaudited)	25.4	%	0.2	%	0.7	%
	Total	100	%	100	%	100	%

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2014
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS
	Executive Relocation. On July 9, 2010, upon the unanimous recommendation of our Compensation Committee, we entered into an arrangement with Mr. Mastandrea with respect to the disposition of his residence in Cleveland, Ohio. Mr. Mastandrea listed the residence in the second half of 2007 and has had to pay for security, taxes, insurance and maintenance expenses related to the residence. Under the relocation arrangement as amended on August 9, 2012, we agreed to pay Mr. Mastandrea the shortfall, if any, in the amount realized from the sale of the Cleveland residence, below $2,450,000, plus tax on the amount of such payment at the maximum federal income tax rate. The amount of the shortfall was to be paid in a combination of cash and common shares at the market value of the shares, as determined upon agreement between Mr. Mastandrea and the Compensation Committee.
	In addition, the arrangement required us to continue paying the previously agreed upon cost of housing expenses for the Mastandrea family in Houston, Texas for a period of one year following the date of sale of the residence. We had previously agreed to reimburse Mr. Mastandrea for out-of-pocket moving costs including packing, temporary storage, transportation and moving supplies.
	On December 21, 2012, Mr. Mastandrea sold the residence to a third party for a price of $1,125,000. Pursuant to the relocation arrangement, we paid cash of $1,325,000, representing the shortfall of the amount realized from the sale of the property, and $852,000, which represented moving expenses and closing costs incurred by Mr. Mastandrea and federal taxes. No common shares were issued. The total expense incurred by us of $2,177,000 is shown separately in our consolidated financial statements. In addition, we issued a note receivable for $975,000 to the buyer, with an interest rate of 4.5% and a maturity of December 31, 2013. On December 5, 2013, the note was renewed through June 30, 2014 and bears interest at a rate of 5.2% during the renewal period. We are currently working with the buyer to renew the note receivable. As a result of this transaction, we also recorded a related party receivable of $652,000, which represents the federal income tax withholding not deducted from our payment to Mr. Mastandrea. Subsequent to December 31, 2012, we received the $652,000 and paid it to the federal government on behalf of Mr. Mastandrea.

Equity

Equity	12 Months Ended
	Dec. 31, 2014
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.
	Reclassification of common shares and transfer of listing
	On June 27, 2012, we filed with the State Department of Assessments and Taxation of Maryland amendments to our declaration of trust that (i) reclassified each issued and unissued Class A common share of beneficial interest, par value $0.001 per share (the “Class A common shares”) into one Class B common share of beneficial interest, par value $0.001 per share (the “Class B common shares”) and (ii) changed the designation of all of the Class B common shares to “common shares.” The amendment setting forth the reclassification of the Class A common shares into Class B common shares was approved by our shareholders at the 2012 annual meeting of shareholders held on May 22, 2012. The amendment approving the redesignation of the Class B common shares to common shares was approved by our board of trustees and did not require shareholder approval. On June 29, 2012, we transferred the listing of our common shares to the New York Stock Exchange under our existing ticker symbol “WSR.” As a result of the transfer, we voluntarily delisted our common shares from the NYSE MKT LLC effective June 28, 2012.
	Equity Offerings
	On October 8, 2013, we completed the sale of 4,000,000 common shares, $0.001 par value per share, and on October 28, 2013, upon the underwriters' exercise of the over-allotment option, we completed the sale of 600,000 additional common shares, at a price to the public of $13.54 per share. Total net proceeds from the offering, including the over-allotment shares, and after deducting the underwriting discount and offering expenses, were approximately $59.7 million, which we contributed to the Operating Partnership in exchange for OP units. The Operating Partnership used the net proceeds from this offering for general corporate purposes, which included acquisitions of additional properties, the repayment of outstanding indebtedness, capital expenditures (including tenant improvements), the expansion, redevelopment and/or re-tenanting of properties in our portfolio, working capital and other general purposes.
	On June 19, 2013, we entered into five equity distribution agreements for an at-the-market distribution program.  Pursuant to the terms and conditions of the agreements, we can issue and sell up to an aggregate of $50 million of our common shares. Actual sales will depend on a variety of factors to be 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 will be made in transactions that will be deemed to be “at-the-market” offerings as defined in Rule 415 under the Securities Act of 1933, as amended. We have no obligation to sell any of our common shares, and could at any time suspend offers under the agreements or terminate the agreements. For the year ended December 31, 2014, we sold 456,090 common shares under the equity distribution program, with net proceeds to us of approximately $6.4 million. In connection with such sales, we paid compensation of $0.1 million to the sales agents. For the year ended December 31, 2013, we sold 282,239 common shares under the equity distribution program, with net proceeds to us of approximately $4.2 million. In connection with such sales, we paid compensation of $0.2 million to the sales agents.
	On August 28, 2012, we completed the sale of 4,830,000 common shares, $0.001 par value per share, including 630,000 common shares pursuant to the exercise of the underwriters' over-allotment option, at a price to the public of $12.80 per share. Total net proceeds from the offering, including over-allotment shares, and after deducting the underwriting discount and offering expenses, were approximately $58.7 million, which we used for general corporate purposes, including property acquisitions, debt repayment, capital expenditures, the expansion, redevelopment and/or re-tenanting of properties in our portfolio, working capital and other general purposes.
	Exchange Offers
	On May 10, 2012, we commenced a third offer to exchange Class B common shares on a one-for-one basis for (i) up to 867,789 outstanding Class A common shares; and (ii) up to 453,642 outstanding OP units (the “Third Exchange Offer”). The Third Exchange Offer expired on June 8, 2012, and 426,986 Class A common shares and 121,156 OP units were accepted for change.
	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, 2014, we owned a 98.3% 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, 2014 and December 31, 2013, there were 22,926,599 and 22,384,970 OP units outstanding, respectively.  We owned 22,528,207 and 21,822,878 OP units as of December 31, 2014 and December 31, 2013, 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 97.9%, 96.8% and 94.1% for the years ended December 31, 2014, 2013 and 2012, respectively.
	On October 9, 2012, we filed with the SEC a prospectus supplement covering the issuance of up to 786,191 of our common shares of beneficial interest, par value $0.001 per share, to certain holders of OP units. The OP units may be issued to the extent that OP unit holders tender their OP units for redemption in accordance with the terms of the limited partnership agreement of the Operating Partnership and we elect, in our sole discretion, to issue common shares to the tendering OP unit holders. The prospectus supplement supplements a base prospectus, dated July 25, 2012, relating to our effective shelf registration statement of Form S-3 (File No. 333-182667). During the years ended December 31, 2014 and 2013, 163,700 and 123,394 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
	2014
	Fourth Quarter	$	0.285	$	6,484	$	0.285	$	114	$	6,598
	Third Quarter	0.285		6,457		0.285		126		6,583
	Second Quarter	0.285		6,367		0.285		152		6,519
	First Quarter	0.285		6,231		0.285		158		6,389
	Total	$	1.14	$	25,539	$	1.14	$	550	$	26,089
	2013
	Fourth Quarter	$	0.285	$	5,790	$	0.285	$	163	$	5,953
	Third Quarter	0.285		4,865		0.285		165		5,030
	Second Quarter	0.285		4,832		0.285		169		5,001
	First Quarter	0.285		4,807		0.285		194		5,001
	Total	$	1.14	$	20,294	$	1.14	$	691	$	20,985

Incentive_Share_Plan

Incentive Share Plan	12 Months Ended
	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
INCENTIVE SHARE PLAN	INCENTIVE SHARE PLAN
	On July 29, 2008, our shareholders approved the 2008 Long-Term Equity Incentive Ownership Plan (the “Plan”). On December 22, 2010, our board of trustees amended the Plan to allow for the issuance of common shares pursuant to the Plan. The Plan, as amended, provides that awards may be made with respect to common shares of Whitestone or OP units. The maximum aggregate number of common shares that may be issued under the Plan is increased upon each issuance of common shares by Whitestone so that at any time the maximum number of shares that may be issued under the 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 Plan, except with respect to awards to non-employee trustees, for which the 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 51 of our employees. The modified time-based shares will vest 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. If the performance targets are not met prior to December 31, 2018, any unvested restricted common shares and restricted common units will be forfeited.
	A summary of the share-based incentive plan activity as of and for the year ended December 31, 2014 is as follows:
			Shares		Weighted-Average
					Grant Date
					Fair Value (1)
	Non-vested at January 1, 2014		759,711		$	13.69
	Granted		2,058,930		14.4
	Modified to new agreements		(633,704	)	13.88
	Modified from existing agreements		633,704		14.59
	Vested		(133,774	)	12.86
	Forfeited		(273,799	)	14.41
	Non-vested at December 31, 2014		2,411,068		$	14.45
	Available for grant at December 31, 2014		629,178
	(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, 2014, 2013 and 2012 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, 2014		2,058,930		$	14.4	(133,774	)	$	1,721
	Year Ended December 31, 2013		328,005		$	15.43	(15,270	)	$	224
	Year Ended December 31, 2012		99,700		$	13.03	(16,208	)	$	223
	Total compensation recognized in earnings for share-based payments for the years ended December 31, 2014, 2013 and 2012 was $4.7 million, $2.3 million and $0.7 million, respectively.
	Based on our current financial projections, we expect approximately 81% of the unvested awards to vest over the next 54 months. As of December 31, 2014, there was approximately $15.7 million, in unrecognized compensation cost related to outstanding non-vested performance-based shares, which are expected to vest over a period of 54 months and approximately $0.8 million in unrecognized compensation cost related to outstanding non-vested time-based shares, which are expected to be recognized over a period of approximately 27 months beginning on January 1, 2015.
	We expect to record approximately $16.5 million in share-based compensation subsequent to the year ended December 31, 2014. The unrecognized share-based compensation cost is expected to vest over a weighted average period of 38 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.

Grants_to_Trustees

Grants to Trustees	12 Months Ended
	Dec. 31, 2014
Grants to Trustees [Abstract]
GRANTS TO TRUSTEES	GRANTS TO TRUSTEES
	On October 24, 2014, each of our four independent trustees and one trustee emeritus was granted 1,500 common shares, which vested immediately. The 7,500 common shares granted to our trustees had a grant date fair value of $14.53 per share. On December 9, 2014, two of our independent trustees elected to receive a total of 2,314 common shares with a grant date fair value of $14.69 in lieu of cash for board fees. The fair value of the shares granted during the year ended December 31, 2014 was determined using quoted prices available on the date of grant.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2014
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, 2014
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION
	Our management historically has not differentiated by property types and therefore does not present segment information.

Select_Quarterly_Financial_Dat

Select Quarterly Financial Data (unaudited)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
SELECT QUARTERLY FINANCIAL DATA (unaudited)	SELECT QUARTERLY FINANCIAL DATA (unaudited)
	The following is a summary of our unaudited quarterly financial information for the years ended December 31, 2014 and 2013 (in thousands, except per share data):
			First		Second		Third		Fourth
			Quarter		Quarter		Quarter		Quarter
	2014
	Revenues from continuing operations		$	17,376	$	17,261	$	18,540	$	19,205
	Income from continuing operations		2,312		1,135		1,012		890
	Income from discontinued operations		120		145		109		2,023
	Net income attributable to Whitestone REIT		2,372		1,252		1,100		2,862
	Basic Earnings per share:
	Income from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares		$	0.1	$	0.05	$	0.04	$	0.04
	Income from discontinued operations attributable to Whitestone REIT		0.01		0		0.01		0.08
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1)		$	0.11	$	0.05	$	0.05	$	0.12
	Diluted Earnings per share:
	Income from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares		$	0.1	$	0.05	$	0.04	$	0.03
	Income from discontinued operations attributable to Whitestone REIT		0.01		0		0.01		0.09
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1)		$	0.11	$	0.05	$	0.05	$	0.12
	2013
	Revenues		$	13,466	$	14,375	$	15,870	$	16,781
	Income from continuing operations		$	873	$	902	$	592	$	1,254
	Income from discontinued operations		$	113	$	101	$	43	$	41
	Net income attributable to Whitestone REIT		$	949	$	970	$	614	$	1,261
	Basic Earnings per share:
	Income from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares		$	0.05	$	0.05	$	0.03	$	0.06
	Income from discontinued operations attributable to Whitestone REIT		0.01		0.01		0.01		0
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1)		$	0.06	$	0.06	$	0.04	$	0.06
	Diluted Earnings per share:
	Income from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares		$	0.05	$	0.05	$	0.03	$	0.06
	Income from discontinued operations attributable to Whitestone REIT		0.01		0.01		0		0
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1)		$	0.06	$	0.06	$	0.03	$	0.06
	(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_II_Valuation_and_Qual

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2014
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, 2014	$	3,613	$	1,602	$	(251	)	$	4,964
	Year ended December 31, 2013	2,226		1,638		(251		)	3,613
	Year ended December 31, 2012	1,343		986		(103		)	2,226

Schedule_III_Real_Estate_and_A

Schedule III - Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2014
SEC Schedule III, 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
	Retail Communities:
	Ahwatukee Plaza		$	5,126			$	4,086		$	196		$	—	$	5,126	$	4,282	$	9,408
	Anthem Marketplace		4,790				17,973			135			—		4,790		18,108		22,898
	Bellnott Square		1,154				4,638			322			—		1,154		4,960		6,114
	Bissonnet Beltway		415				1,947			399			—		415		2,346		2,761
	Centre South		481				1,596			580			—		481		2,176		2,657
	The Citadel		472				1,777			2,492			—		472		4,269		4,741
	Desert Canyon		1,976				1,704			500			—		1,976		2,204		4,180
	Fountain Square		5,573				9,828			1,162			—		5,573		10,990		16,563
	Gilbert Tuscany Village		1,767				3,233			1,261			—		1,767		4,494		6,261
	Heritage Trace Plaza		6,209				13,821			(38		)	—		6,209		13,783		19,992
	Holly Knight		320				1,293			165			—		320		1,458		1,778
	Headquarters Village		7,171				18,439			93			—		7,171		18,532		25,703
	Kempwood Plaza		733				1,798			557			—		733		2,355		3,088
	Lion Square		1,546				4,289			2,918			—		1,546		7,207		8,753
	The Marketplace at Central		1,305				5,324			975			—		1,305		6,299		7,604
	Market Street at DC Ranch		9,710				26,779			857			—		9,710		27,636		37,346
	Mercado at Scottsdale Ranch		8,728				12,560			137			—		8,728		12,697		21,425
	Paradise Plaza		6,155				10,221			406			—		6,155		10,627		16,782
	Pinnacle of Scottsdale		6,648				22,466			901			—		6,648		23,367		30,015
	Providence		918				3,675			630			—		918		4,305		5,223
	Shaver		184				633			(33		)	—		184		600		784
	Shops at Pecos Ranch		3,781				15,123			481			—		3,781		15,604		19,385
	Shops at Starwood		4,093				11,487			121			—		4,093		11,608		15,701
	South Richey		778				2,584			1,895			—		778		4,479		5,257
	Spoerlein Commons		2,340				7,296			322			—		2,340		7,618		9,958
	The Strand at Huebner Oaks		5,805				12,335			—			—		5,805		12,335		18,140
	SugarPark Plaza		1,781				7,125			793			—		1,781		7,918		9,699
	Sunridge		276				1,186			280			—		276		1,466		1,742
	Sunset at Pinnacle Peak		3,610				2,734			319			—		3,610		3,053		6,663
	Terravita Marketplace		7,171				9,392			544			—		7,171		9,936		17,107
	Torrey Square		1,981				2,971			1,155			—		1,981		4,126		6,107
	Town Park		850				2,911			173			—		850		3,084		3,934
	Village Square at Dana Park		10,877				40,252			1,295			—		10,877		41,547		52,424
	Webster Pointe		720				1,150			171			—		720		1,321		2,041
	Westchase		423				1,751			2,742			—		423		4,493		4,916
	Williams Trace Plaza		6,800				14,003			—			—		6,800		14,003		20,803
	Windsor Park		2,621				10,482			7,454			—		2,621		17,936		20,557
			$	125,288			$	310,862		$	32,360		$	—	$	125,288	$	343,222	$	468,510
	Office/Flex Communities:
	Brookhill		$	186			$	788		$	357		$	—	$	186	$	1,145	$	1,331
	Corporate Park Northwest		1,534				6,306			1,583			—		1,534		7,889		9,423
	Corporate Park West		2,555				10,267			903			—		2,555		11,170		13,725
	Corporate Park Woodland		652				5,330			514			—		652		5,844		6,496
	Dairy Ashford		226				1,211			80			—		226		1,291		1,517
										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
	Holly Hall Industrial Park		608				2,516			383			—		608		2,899		3,507
	Interstate 10 Warehouse		208				3,700			386			—		208		4,086		4,294
	Main Park		1,328				2,721			523			—		1,328		3,244		4,572
	Plaza Park		902				3,294			1,029			—		902		4,323		5,225
	Westbelt Plaza		568				2,165			641			—		568		2,806		3,374
	Westgate Service Center		672				2,776			529			—		672		3,305		3,977
			$	9,439			$	41,074		$	6,928		$	—	$	9,439	$	48,002	$	57,441
	Office Communities:
	9101 LBJ Freeway		$	1,597			$	6,078		$	1,120		$	—	$	1,597	$	7,198	$	8,795
	Pima Norte		1,086				7,162			1,690			517		1,086		9,369		10,455
Uptown Tower		1,621				15,551			3,149			—		1,621		18,700		20,321
Woodlake Plaza		1,107				4,426			1,251			—		1,107		5,677		6,784
		$	5,411			$	33,217		$	7,210		$	517	$	5,411	$	40,944	$	46,355
Total Operating Portfolio		$	140,138			$	385,153		$	46,498		$	517	$	140,138	$	432,168	$	572,306
Corporate Park Woodland II		$	2,758			$	—		$	5		$	—	$	2,758	$	5	$	2,763
Fountain Hills Plaza		5,113				15,340			11			—		5,113		15,351		20,464
Fulton Ranch Towne Center		7,604				22,612			3			—		7,604		22,615		30,219
The Promenade at Fulton Ranch		5,198				13,367			6			—		5,198		13,373		18,571
The Shops at Williams Trace		5,920				14,297			—			—		5,920		14,297		20,217
Total - Development Portfolio (3)		$	26,593			$	65,616		$	25		$	—	$	26,593	$	65,641	$	92,234
Anthem Marketplace		$	204			$	—		$	—		$	—	$	204	$	—	$	204
Dana Park Development		4,000				—			—			—		4,000		—		4,000
Fountain Hills		277				—			—			—		277		—		277
Market Street at DC Ranch		704				—			—			—		704		—		704
Pinnacle Phase II		1,000				—			219			337		1,000		556		1,556
Shops at Starwood Phase III		1,818				—			176			380		1,818		556		2,374
Total - Property Held for Development		$	8,003			$	—		$	395		$	717	$	8,003	$	1,112	$	9,115
Grand Totals		$	174,734			$	450,769		$	46,918		$	1,234	$	174,734	$	498,921	$	673,655
				Accumulated Depreciation				Date of	Date		Depreciation
Property Name		Encumbrances		(in thousands)				Construction	Acquired		Life
Retail Communities:
Ahwatukee Plaza				$	416				8/16/11		5-39 years
Anthem Marketplace		-4		702					6/28/13		5-39 years
Bellnott Square				1,660					1/1/02		5-39 years
Bissonnet Beltway				1,455					1/1/99		5-39 years
Centre South				929					1/1/00		5-39 years
The Citadel				675					9/28/10		5-39 years
Desert Canyon				271					4/13/11		5-39 years
Fountain Square				676					9/21/12		5-39 years
Gilbert Tuscany Village				609					6/28/11		5-39 years
Heritage Trace Plaza				177					7/1/14		5-39 years
Holly Knight				902					8/1/00		5-39 years
Headquarters Village		-5		846					3/28/13		5-39 years
Kempwood Plaza				1,092					2/2/99		5-39 years
Lion Square				2,783					1/1/00		5-39 years
The Marketplace at Central				693					11/1/10		5-39 years
Market Street at DC Ranch				808					12/5/13		5-39 years
Mercado at Scottsdale Ranch		-6		515					6/19/13		5-39 years
Paradise Plaza		-7		663					8/8/12		5-39 years
Pinnacle of Scottsdale		-8		1,908					12/22/11		5-39 years
Providence				1,704					3/30/01		5-39 years
Shaver				280					12/17/99		5-39 years
Shops at Pecos Ranch		-9		817					12/28/12		5-39 years
Shops at Starwood		-10		908					12/28/11		5-39 years
South Richey				1,554					8/25/99		5-39 years
Spoerlein Commons				1,273					1/16/09		5-39 years
The Strand at Huebner Oaks				79					9/19/14		5-39 years
SugarPark Plaza				2,202					9/8/04		5-39 years
Sunridge				564					1/1/02		5-39 years
Sunset at Pinnacle Peak				210					5/29/12		5-39 years
Terravita Marketplace		-11		914					8/8/11		5-39 years
Torrey Square				1,875					1/1/00		5-39 years
Town Park				1,598					1/1/99		5-39 years
Village Square at Dana Park		-12		2,344					9/21/12		5-39 years
Webster Pointe				631					1/1/00		5-39 years
Westchase				1,314					1/1/02		5-39 years
Williams Trace Plaza				—					12/24/14		5-39 years
Windsor Park				4,828					12/16/03		5-39 years
				$	40,875
Office/Flex Communities:
Brookhill				$	397				1/1/02		5-39 years
Corporate Park Northwest				2,725					1/1/02		5-39 years
Corporate Park West		-13		4,007					1/1/02		5-39 years
Corporate Park Woodland		-13		2,761				11/1/00			5-39 years
Dairy Ashford		-13		603					1/1/99		5-39 years
Holly Hall Industrial Park		-13		1,040					1/1/02		5-39 years
Interstate 10 Warehouse		-13		2,434					1/1/99		5-39 years
Main Park		-13		1,445					1/1/99		5-39 years
				Accumulated Depreciation				Date of	Date		Depreciation
Property Name		Encumbrances		(in thousands)				Construction	Acquired		Life
Plaza Park		-13		1,987					1/1/00		5-39 years
Westbelt Plaza		-13		1,501					1/1/99		5-39 years
Westgate Service Center		-13		1,239					1/1/02		5-39 years
				$	20,139
Office Communities:
9101 LBJ Freeway				$	1,816				8/10/05		5-39 years
Pima Norte				1,548					10/4/07		5-39 years
Uptown Tower		-14		5,076					11/22/05		5-39 years
Woodlake Plaza		-15		1,561					3/14/05		5-39 years
				$	10,001
Total Operating Portfolio				$	71,015
Corporate Park Woodland II				$	3				10/17/13		5-39 years
Fountain Hills Plaza				492					10/7/13		5-39 years
Fulton Ranch Towne Center				48					11/5/14		5-39 years
The Promenade at Fulton Ranch				29					11/5/14		5-39 years
The Shops at Williams Trace				—					12/24/14		5-39 years
Total - Development Portfolio (3)				$	572
Anthem Marketplace				$	—				6/28/13		Land - Not Depreciated
Dana Park Development				—					9/21/12		Land - Not Depreciated
Fountain Hills				—					10/7/13		Land - Not Depreciated
Market Street at DC Ranch				—					12/5/13		Land - Not Depreciated
Pinnacle Phase II				—					12/28/11		Land - Not Depreciated
Shops at Starwood Phase III				—					12/28/11		Land - Not Depreciated
Total - Property Held For Development				$	—
Grand Total				$	71,587
-1	Reconciliations of total real estate carrying value for the three years ended December 31, follows:
		( in thousands)
		2014				2013			2012
Balance at beginning of period		$	537,872			$	401,325		$	284,152
Additions during the period:
Acquisitions		132,734				130,731			107,392
Improvements		9,330				6,164			12,631
		142,064				136,895			120,023
Deductions - cost of real estate sold or retired		(6,281		)		(348		)	(2,850		)
Balance at close of period		$	673,655			$	537,872		$	401,325
(2)	The aggregate cost of real estate (in thousands) for federal income tax purposes is $649,771.
(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 $19.0 million mortgage note.
(6)	This property secures a $11.1 million mortgage note.
(7)	This property secures a $9.2 million mortgage note.
(8)	This property secures a $14.1 million mortgage note.
(9)	This property secures a $14.0 million mortgage note.
(10)	This property secures a $14.3 million mortgage note.
(11)	This property secures a $10.5 million mortgage note.
(12)	This property secures a $2.6 million mortgage note.
(13)	These properties secure a $37.0 million mortgage note.
(14)	This property secures a $16.5 million mortgage note.
(15)	This property secures a $6.5 million mortgage note.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Basis of Consolidation	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, 2014, 2013 and 2012, 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.  All significant inter-company balances have been eliminated. 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.
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. These reclassifications had no effect on net income, total assets, total liabilities or equity. During 2012, we reclassified the amortization of our loan fees, previously classified as general and administrative expenses, to interest expense for all periods presented. On June 27, 2012, our Class A and Class B common shares were consolidated into a single class of common shares. See Note 13 for additional discussion related to the consolidation of Class A and Class B common shares into a single class of common shares. During 2014, we reclassified certain properties classified as discontinued operations to conform to the current year presentation. See Note 4 for additional discussion.
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.
Noncontrolling Interests	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	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, 2014 and 2013 consisted of demand deposits at commercial banks and brokerage accounts.
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.
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, 2014.
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, 2014 and 2013, we had an allowance for uncollectible accounts of $5.0 million and $3.6 million, respectively. As of December 31, 2014, 2013 and 2012, we recorded bad debt expense in the amount of $1.6 million, $1.6 million and $1.0 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.
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 $394.9 million and $262.0 million as compared to the book value of approximately $394.1 million and $264.3 million as of December 31, 2014 and 2013, 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.
	Disclosure about fair value of financial instruments is based on pertinent information available to management as of December 31, 2014 and 2013. 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, 2014 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 occasionally 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 (loss) and subsequently reclassified into earnings in the period that the hedged transaction affects earnings. Any ineffective portion of a cash flow hedges' 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, 2014, 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 Houston, Dallas, San Antonio, Phoenix and Chicago 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 April 2014, the FASB issued guidance updating the criteria for reporting the disposal of a component of an entity as a discontinued operation. This guidance was effective for reporting periods beginning on or after December 15, 2014 with early adoption permitted only for disposals that have not been reported in financial statements previously issued or available for issuance. We have adopted the guidance for the year ended December 31, 2014.

Marketable_Securities_Tables

Marketable Securities (Tables)	12 Months Ended
	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-Sale Securities	Available-for-sale securities consist of the following (in thousands):
		December 31, 2014
		Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
	Real estate sector common stock	$	1,106	$	—	$	(133	)	$	973
	Total available-for-sale securities	$	1,106	$	—	$	(133	)	$	973
		December 31, 2013
		Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
	Real estate sector common stock	$	1,106	$	—	$	(229	)	$	877
	Total available-for-sale securities	$	1,106	$	—	$	(229	)	$	877

Real_Estate_Tables

Real Estate (Tables)	12 Months Ended
	Dec. 31, 2014
Real Estate [Abstract]
Schedule of pro forma results of operations	The pro forma unaudited results summarized below reflect our consolidated pro forma results of operations as if our acquisitions for the years ended December 31, 2014, 2013 and 2012 were acquired on January 1, 2012 and includes no other material adjustments:
	INCOME STATEMENT DATA	Year Ended December 31,
		2014		2013		2012
	Operating revenue	$	82,818	$	81,798	$	79,445
	Net income	$	10,910	$	10,422	$	9,072
Schedule of operating results for properties classified as discontinued operations	The operating results for properties classified as discontinued operations consists of the following (in thousands):
		Year Ended December 31,
		2014		2013		2012
	Property revenues	$	1,626	$	1,653	$	1,560
	Property expenses	734		832		797
	Depreciation and amortization	314		329		340
	Interest expense	58		175		179
	Provision for income taxes	10		12		11
	Loss on sale or disposal of assets	—		7		15
	Operating income from discontinued operations	510		298		218
	Gain on sale of property from discontinued operations	1,887		—		—
	Income from discontinued operations	$	2,397	$	298	$	218

Accrued_Rents_and_Accounts_Rec1

Accrued Rents and Accounts Receivable, Net (Tables)	12 Months Ended
	Dec. 31, 2014
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,
		2014			2013
	Tenant receivables	$	7,998		$	5,623
	Accrued rents and other recoveries	8,800			7,758
	Allowance for doubtful accounts	(4,964		)	(3,613		)
	Totals	$	11,834		$	9,768

Unamortized_Lease_Commissions_1

Unamortized Lease Commissions and Loan Costs (Tables)	12 Months Ended
	Dec. 31, 2014
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,
		2014			2013
	Leasing commissions	$	5,936		$	6,306
	Deferred financing cost	5,785			5,146
	Total cost	11,721			11,452
	Less: leasing commissions accumulated amortization	(2,373		)	(3,378		)
	Less: deferred financing cost accumulated amortization	(469		)	(1,931		)
	Total cost, net of accumulated amortization	$	8,879		$	6,143
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 Financing Costs			Total
	2015	$	935		$	1,198		$	2,133
	2016	788			1,191			1,979
	2017	626			1,041			1,667
	2018	422			900			1,322
	2019	272			299			571
	Thereafter	520			687			1,207
	Total	$	3,563		$	5,316		$	8,879

Future_Minimum_Lease_Income_Ta

Future Minimum Lease Income (Tables)	12 Months Ended
	Dec. 31, 2014
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, 2014 is as follows (in thousands):
	Years Ended December 31,	Minimum Future Rents
	2015	$	59,186
	2016	50,889
	2017	41,289
	2018	30,721
	2019	22,257
	Thereafter	68,886
	Total	$	273,228

Debt_Tables

Debt (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Schedule of Debt	Mortgages and other notes payable consist of the following (in thousands):
			December 31,
	Description		2014		2013
	Fixed rate notes
	$10.5 million, LIBOR plus 2.00% Note, due September 24, 2018 (1)		$	10,460	$	10,500
	$50.0 million, 0.84% plus 1.35% to 1.90% Note, due February 17, 2017 (2)		50,000		50,000
	$37.0 million 3.76% Note, due December 1, 2020		36,090		37,000
	$6.5 million 3.80% Note, due January 1, 2019		6,355		6,500
	$19.0 million 4.15% Note, due December 1, 2024		19,000		—
	$20.2 million 4.28% Note, due June 6, 2023		20,200		20,200
	$14.0 million 4.34% Note, due September 11, 2024		14,000		—
	$14.3 million 4.34% Note, due September 11, 2024		14,300		—
	$1.0 million 4.75% Note, due December 31, 2014		—		1,087
	$16.5 million 4.97% Note, due September 26, 2023		16,450		16,450
	$15.1 million 4.99% Note, due January 6, 2024		15,060		15,060
	$9.2 million, Prime Rate less 2.00%, due December 29, 2017 (3)		7,888		7,875
	$2.6 million 5.46% Note, due October 1, 2023		2,583		—
	$11.1 million 5.87% Note, due August 6, 2016		11,607		11,900
	Floating rate notes
	Unsecured line of credit, LIBOR plus 1.40% to 1.95%, due November 7, 2018		120,100		84,800
	$50.0 million, LIBOR plus 1.35% to 1.90% Note, due November 7, 2019		50,000		—
			$	394,093	$	261,372
	-1	Promissory note includes an interest rate swap that fixed the interest rate at 3.55% for the duration of the term.
	-2	Promissory note includes an interest rate swap that fixed the LIBOR portion of our $50 million term loan under our unsecured credit facility at 0.84%.
	(3)	Promissory note includes an interest rate swap that fixed the interest rate at 5.72% for the duration of the term. As part of our acquisition of Paradise Plaza in August 2012, we recorded a discount on the note of $1.3 million, which amortizes into interest expense over the life of the loan and results in an imputed interest rate of 4.13%.
Schedule of Maturities of Debt	Annual maturities of notes payable as of December 31, 2014 are due during the following years:
			Amount Due
	Year		(in thousands)
	2015		$	1,855
	2016		13,269
	2017		60,213
	2018		132,236
	2019		58,049
	Thereafter		128,471
	Total		$	394,093
Schedule of Contractual Obligations	As of December 31, 2014, we had the following contractual obligations:
					Payment due by period (in thousands)
					Less than 1		1 - 3 years		3 - 5 years		More than
			Total		year (2014)		(2015 - 2016)		(2017 - 2018)		5 years
	Contractual Obligations										(after 2018)
	Long-Term Debt - Principal		$	394,093	$	1,855	$	73,482	$	190,285	$	128,471
	Long-Term Debt - Fixed Interest		52,544		7,702		13,976		11,862		19,004
	Long-Term Debt - Variable Interest (1)		9,206		3,134		4,411		1,661		—
	Unsecured credit facility - Unused commitment fee (2)		2,741		700		1,400		641		—
	Operating Lease Obligations		49		29		20		—		—
	Total		$	458,633	$	13,420	$	93,289	$	204,449	$	147,475

Derivatives_and_Hedging_Activi1

Derivatives and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of activity and fair value of interest rate swaps	The fair value of our interest rate swaps is as follows (in thousands):
		Balance Sheet Location		Estimated Fair Value
	Interest rate swaps:
	31-Dec-14	Accounts payable and accrued expenses		$	1,016
	31-Dec-13	Accounts payable and accrued expenses		$	1,231
	A summary of our interest rate swap activity is as follows (in thousands):
	Year Ended	Amount Recognized as Comprehensive Income (Loss)				Location of Loss Recognized in Earnings	Amount of Loss Recognized in Earnings (1)
	2014	$	(136	)		Interest expense	$	(838	)
	2013	$	173			Interest expense	$	(363	)
	2012	$	1			Interest expense	$	(146	)

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Schedule of Earnings Per Share
		Year Ended
		December 31,
	(in thousands, except per share data)	2014			2013			2012
	Numerator:
	Income (loss) from continuing operations	$	5,349		$	3,621		$	(165	)
	Less: Net (income) loss attributable to noncontrolling interests	(111		)	(115		)	10
	Distributions paid on unvested restricted shares	(201		)	(50		)	(22		)
	Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares	5,037			3,456			(177		)
	Income from discontinued operations	2,397			298			218
	Less: Net income attributable to noncontrolling interests	(49		)	(10		)	(13		)
	Income from discontinued operations attributable to Whitestone REIT	2,348			288			205
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	7,385		$	3,744		$	28
	Denominator:
	Weighted average number of common shares - basic	22,278			18,027			13,496
	Effect of dilutive securities:
	Unvested restricted shares	515			246			117
	Weighted average number of common shares - dilutive	22,793			18,273			13,613
	Earnings Per Share:
	Basic:
	Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares	$	0.23		$	0.19		$	(0.01	)
	Income from discontinued operations attributable to Whitestone REIT	0.1			0.02			0.01
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.33		$	0.21		$	0
	Diluted:
	Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares	$	0.22		$	0.19		$	(0.01	)
	Income from discontinued operations attributable to Whitestone REIT	0.1			0.01			0.01
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	0.32		$	0.2		$	0

Federal_Income_Taxes_Tables

Federal Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
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:
		2014		2013		2012
	Ordinary income (unaudited)	53.3	%	38.5	%	34.1	%
	Return of capital (unaudited)	21.3	%	61.3	%	65.2	%
	Capital gain distributions (unaudited)	25.4	%	0.2	%	0.7	%
	Total	100	%	100	%	100	%

Equity_Tables

Equity (Tables)	12 Months Ended
	Dec. 31, 2014
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
	2014
	Fourth Quarter	$	0.285	$	6,484	$	0.285	$	114	$	6,598
	Third Quarter	0.285		6,457		0.285		126		6,583
	Second Quarter	0.285		6,367		0.285		152		6,519
	First Quarter	0.285		6,231		0.285		158		6,389
	Total	$	1.14	$	25,539	$	1.14	$	550	$	26,089
	2013
	Fourth Quarter	$	0.285	$	5,790	$	0.285	$	163	$	5,953
	Third Quarter	0.285		4,865		0.285		165		5,030
	Second Quarter	0.285		4,832		0.285		169		5,001
	First Quarter	0.285		4,807		0.285		194		5,001
	Total	$	1.14	$	20,294	$	1.14	$	691	$	20,985

Incentive_Share_Plan_Tables

Incentive Share Plan (Tables)	12 Months Ended
	Dec. 31, 2014
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, 2014 is as follows:
			Shares		Weighted-Average
					Grant Date
					Fair Value (1)
	Non-vested at January 1, 2014		759,711		$	13.69
	Granted		2,058,930		14.4
	Modified to new agreements		(633,704	)	13.88
	Modified from existing agreements		633,704		14.59
	Vested		(133,774	)	12.86
	Forfeited		(273,799	)	14.41
	Non-vested at December 31, 2014		2,411,068		$	14.45
	Available for grant at December 31, 2014		629,178
	(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, 2014, 2013 and 2012 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, 2014		2,058,930		$	14.4	(133,774	)	$	1,721
	Year Ended December 31, 2013		328,005		$	15.43	(15,270	)	$	224
	Year Ended December 31, 2012		99,700		$	13.03	(16,208	)	$	223

Select_Quarterly_Financial_Dat1

Select Quarterly Financial Data (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Schedule of unaudited quarterly financial information	The following is a summary of our unaudited quarterly financial information for the years ended December 31, 2014 and 2013 (in thousands, except per share data):
			First		Second		Third		Fourth
			Quarter		Quarter		Quarter		Quarter
	2014
	Revenues from continuing operations		$	17,376	$	17,261	$	18,540	$	19,205
	Income from continuing operations		2,312		1,135		1,012		890
	Income from discontinued operations		120		145		109		2,023
	Net income attributable to Whitestone REIT		2,372		1,252		1,100		2,862
	Basic Earnings per share:
	Income from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares		$	0.1	$	0.05	$	0.04	$	0.04
	Income from discontinued operations attributable to Whitestone REIT		0.01		0		0.01		0.08
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1)		$	0.11	$	0.05	$	0.05	$	0.12
	Diluted Earnings per share:
	Income from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares		$	0.1	$	0.05	$	0.04	$	0.03
	Income from discontinued operations attributable to Whitestone REIT		0.01		0		0.01		0.09
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1)		$	0.11	$	0.05	$	0.05	$	0.12
	2013
	Revenues		$	13,466	$	14,375	$	15,870	$	16,781
	Income from continuing operations		$	873	$	902	$	592	$	1,254
	Income from discontinued operations		$	113	$	101	$	43	$	41
	Net income attributable to Whitestone REIT		$	949	$	970	$	614	$	1,261
	Basic Earnings per share:
	Income from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares		$	0.05	$	0.05	$	0.03	$	0.06
	Income from discontinued operations attributable to Whitestone REIT		0.01		0.01		0.01		0
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1)		$	0.06	$	0.06	$	0.04	$	0.06
	Diluted Earnings per share:
	Income from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares		$	0.05	$	0.05	$	0.03	$	0.06
	Income from discontinued operations attributable to Whitestone REIT		0.01		0.01		0		0
	Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (1)		$	0.06	$	0.06	$	0.03	$	0.06
	(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.

Description_of_Business_and_Na1

Description of Business and Nature of Operations (Details)	1 Months Ended
	Jul. 31, 2004	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
		CommercialProperties	CommercialProperties	CommercialProperties
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reorganization and conversion, number of common shares (in shares)	1.42857
Wholly Owned Properties [Member]
Real Estate Properties [Line Items]
Number of commercial properties (in commerical property)		63	60	51

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$4,631,000	$2,284,000	$725,000
Interest expense capitalized	93,000	114,000	176,000
Real estate taxes capitalized	58,000	100,000	147,000
Allowance for doubtful accounts	-4,964,000	-3,613,000
Provision for doubtful accounts	1,602,000	1,638,000	986,000
Fair value of long-term debt	394,900,000	262,000,000
Book value of long-term debt	394,100,000	264,300,000
2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$4,736,000	$2,284,000	$725,000

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Depreciation (Details) (Building and Building Improvements [Member])	12 Months Ended
	Dec. 31, 2014
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_Account4

Summary of Significant Accounting Policies - Prepaids and Other Assets (Details) (USD $)	31-May-13	Dec. 31, 2013	Dec. 05, 2013
In Thousands, unless otherwise specified
Related Party Transaction [Line Items]
Stated interest rate	5.70%
Four Point Five Percent Due December 2013 [Member] | Executive Officer [Member]
Related Party Transaction [Line Items]
Note receivable, related party		$975
Stated interest rate		4.50%	5.20%

Summary_of_Significant_Account5

Summary of Significant Accounting Policies - Taxes (Details) (TEXAS, State and Local Jurisdiction [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
TEXAS | State and Local Jurisdiction [Member]
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	$0.30	$0.30	$0.30

Marketable_Securities_Details

Marketable Securities (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$1,106,000	$1,106,000
Gains in Accumulated Other Comprehensive Income	0	0
Losses in Accumulated Other Comprehensive Income	-133,000	-229,000
Estimated Fair Value	973,000	877,000
Proceeds from sales of marketable securities	0	747,000	5,508,000
Gross realized gains on sale of marketable securities		44,000	152,000
Gross realized losses on sale of marketable securities		-3,000	-42,000
Real estate sector common stock
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,106,000	1,106,000
Gains in Accumulated Other Comprehensive Income	0	0
Losses in Accumulated Other Comprehensive Income	-133,000	-229,000
Estimated Fair Value	$973,000	$877,000

Real_Estate_Details

Real Estate (Details) (USD $)	3 Months Ended								12 Months Ended			0 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 24, 2014	Dec. 19, 2014	Nov. 05, 2014	Sep. 19, 2014	Jul. 01, 2014	Dec. 05, 2013	Oct. 17, 2013	Oct. 07, 2013	Jun. 28, 2013	Jun. 19, 2013	Mar. 28, 2013	Dec. 28, 2012	Sep. 21, 2012	Aug. 08, 2012	29-May-12	Dec. 31, 2014	Jul. 22, 2011	31-May-13
																	sqft	acre	sqft	acre	sqft	sqft	sqft	sqft	sqft	sqft
																		sqft		sqft
Real Estate Properties [Line Items]
Payments to acquire property									$129,439,000	$119,102,000	$98,350,000
Face amount of debt																													14,100,000
INCOME STATEMENT DATA
Operating revenue									82,818,000	81,798,000	79,445,000
Net income									10,910,000	10,422,000	9,072,000
Acquisition-related costs									1,341,000	1,010,000	698,000
Gain on property dispositions									-111,000	-49,000	-97,000
Operating results for properties classified as discontinued operations
Operating income from discontinued operations									510,000	298,000	218,000
Gain on sale of property from discontinued operations									1,887,000	0	0
Income from discontinued operations	2,023,000	109,000	145,000	120,000	41,000	43,000	101,000	113,000	2,397,000	298,000	218,000
Village Square at Dana Park Hard Corner [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)												12,047
Property acquisitions, purchase price												4,700,000
Payments to acquire property												2,100,000
Property percentage occupied												88.00%
Face amount of debt												2,600,000
Revenue since date of acqusition included in results of operations									10,000
Income (loss) since date of acqusition included in results of operations									6,000
The Shops at Williams Trace [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)												132,991
Payments to acquire property												20,200,000
Property percentage occupied												87.00%
Revenue since date of acqusition included in results of operations									49,000
Income (loss) since date of acqusition included in results of operations									41,000
Williams Trace Plaza [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)												129,222
Payments to acquire property												20,400,000
Property percentage occupied												95.00%
Revenue since date of acqusition included in results of operations									40,000
Income (loss) since date of acqusition included in results of operations									32,000
Fulton Ranch Towne Center Adjacent Parcel [Member]
Real Estate Properties [Line Items]
Payments to acquire property													900,000
Area of land (in acres)													1.39
Fulton Ranch Towne Center [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)														113,281
Payments to acquire property														29,300,000
Property percentage occupied														86.00%
Revenue since date of acqusition included in results of operations									399,000
Income (loss) since date of acqusition included in results of operations									228,000
The Promenade at Fulton Ranch [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)														98,792
Payments to acquire property														18,600,000
Property percentage occupied														76.00%
Revenue since date of acqusition included in results of operations									283,000
Income (loss) since date of acqusition included in results of operations									146,000
The Strand at Huebner Oaks [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)															73,920
Payments to acquire property															18,000,000
Property percentage occupied															90.00%
Revenue since date of acqusition included in results of operations									553,000
Income (loss) since date of acqusition included in results of operations									339,000
Heritage Trace Plaza [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																70,431
Payments to acquire property																20,100,000
Property percentage occupied																98.00%
Revenue since date of acqusition included in results of operations									938,000
Income (loss) since date of acqusition included in results of operations									473,000
Market Street at DC Ranch [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																	241,280
Payments to acquire property																	37,400,000
Property percentage occupied																	80.00%
Corporate Park Woodland Parcel [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																		16,220
Payments to acquire property																		2,800,000
Property percentage occupied																		63.00%
Area of land (in acres)																		2.5
Fountain Hills Plaza [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																			111,289
Payments to acquire property																			20,600,000
Property percentage occupied																			87.00%
Anthem Marketplace [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																				113,293
Payments to acquire property																				23,300,000
Property percentage occupied																				100.00%
Area of land (in acres)																				0.83
Mercado at Scottsdale Ranch [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																					118,730
Property acquisitions, purchase price																					21,300,000
Payments to acquire property																					9,300,000
Property percentage occupied																					100.00%
Face amount of debt																					11,100,000
Mercado at Scottsdale Ranch [Member] | Interest Rate Supplement [Member]
Real Estate Properties [Line Items]
Face amount of debt																					900,000
Headquarters Village Shopping Center [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																						89,134
Payments to acquire property																						25,700,000
Property percentage occupied																						100.00%
Shops at Pecos Ranch [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																							78,767
Payments to acquire property																							19,000,000
Property percentage occupied																							100.00%
Village Square at Dana Park [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																								310,979
Payments to acquire property																								46,500,000
Property percentage occupied																								71.00%
Village Square at Dana Park Adjacent Parcel [Member]
Real Estate Properties [Line Items]
Payments to acquire property																								4,000,000
Area of land (in acres)																								4.7
Fountain Square [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																								118,209
Payments to acquire property																								15,400,000
Property percentage occupied																								76.00%
Paradise Plaza [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																									125,898
Property acquisitions, purchase price																									16,300,000
Payments to acquire property																									7,100,000
Property percentage occupied																									100.00%
Paradise Plaza [Member] | Floating Rate Notes [Member]
Real Estate Properties [Line Items]
Face amount of debt																									9,200,000
Shops at Pinnacle Peak [Member]
Real Estate Properties [Line Items]
Gross leasable area (in square feet)																										41,530
Payments to acquire property																										6,400,000
Property percentage occupied																										76.00%
Zeta, Royal Crest and Featherwood [Member]
INCOME STATEMENT DATA
Proceeds from sale of real estate																												10,300,000
Short-term seller financing provided	2,500,000								2,500,000																		2,500,000
Gain on property dispositions									1,900,000																		4,400,000
Deferred gain on sale of property	2,500,000								2,500,000																		2,500,000
Operating results for properties classified as discontinued operations
Property revenues									1,626,000	1,653,000	1,560,000
Property expenses									734,000	832,000	797,000
Depreciation and amortization									314,000	329,000	340,000
Interest expense									58,000	175,000	179,000
Provision for income taxes									10,000	12,000	11,000
Loss on sale or disposal of assets									0	7,000	15,000
Operating income from discontinued operations									510,000	298,000	218,000
Gain on sale of property from discontinued operations									1,887,000	0	0
Income from discontinued operations									$2,397,000	$298,000	$218,000
Wholly Owned Properties [Member]
Real Estate Properties [Line Items]
Number of commercial properties (in commerical property)	63				60				63	60	51																63
Gross leasable area (in square feet)	5,500,000								5,500,000																		5,500,000

Accrued_Rents_and_Accounts_Rec2

Accrued Rents and Accounts Receivable, Net (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables [Abstract]
Tenant receivables	$7,998	$5,623
Accrued rents and other recoveries	8,800	7,758
Allowance for doubtful accounts	-4,964	-3,613
Totals	$11,834	$9,768

Unamortized_Lease_Commissions_2

Unamortized Lease Commissions and Loan Costs (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Leasing commissions	$5,936	$6,306
Deferred financing cost	5,785	5,146
Total cost	11,721	11,452
Less: leasing commissions accumulated amortization	-2,373	-3,378
Less: deferred financing cost accumulated amortization	-469	-1,931
Total cost, net of accumulated amortization	$8,879	$6,143

Unamortized_Lease_Commissions_3

Unamortized Lease Commissions and Loan Costs (Details 2) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Expected Amortization of Deferred Leasing Commissions Year 2015	$935
Expected Amortization of Deferred Leasing Commissions Year 2016	788
Expected Amortization of Deferred Leasing Commissions Year 2017	626
Expected Amortization of Deferred Leasing Commissions Year 2018	422
Expected Amortization of Deferred Leasing Commissions Year 2019	272
Expected Amortization of Deferred Leasing Commissions Thereafter	520
Expected Amortization of Deferred Leasing Commissions	3,563
Expected Amortization of Deferred Financing Costs Year 2015	1,198
Expected Amortization of Deferred Financing Costs Year 2016	1,191
Expected Amortization of Deferred Financing Costs Year 2017	1,041
Expected Amortization of Deferred Financing Costs Year 2018	900
Expected Amortization of Deferred Financing Costs Year 2019	299
Expected Amortization of Deferred Financing Costs Thereafter	687
Expected Amortization of Deferred Financing Costs	5,316
Expected Amortization of Deferred Costs Year 2015	2,133
Expected Amortization of Deferred Costs Year 2016	1,979
Expected Amortization of Deferred Costs Year 2017	1,667
Expected Amortization of Deferred Costs Year 2018	1,322
Expected Amortization of Deferred Costs Year 2019	571
Expected Amortization of Deferred Costs Thereafter	1,207
Expected Amortization of Deferred Costs	$8,879

Future_Minimum_Lease_Income_De

Future Minimum Lease Income (Details) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Leases [Abstract]
2015	$59,186
2016	50,889
2017	41,289
2018	30,721
2019	22,257
Thereafter	68,886
Total	$273,228

Debt_Schedule_of_Debt_Details

Debt (Schedule of Debt) (Details) (USD $)	12 Months Ended		0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Nov. 07, 2014	31-May-13	Aug. 08, 2012
Debt Instrument [Line Items]
Notes payable	$394,093,000	$261,372,000
Face amount of debt				14,100,000
Stated interest rate				5.70%
Fixed Rate Notes [Member] | $10.5 million, LIBOR plus 2.00% Note, due September 24, 2018 | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Notes payable	10,460,000	10,500,000
Face amount of debt	10,500,000	10,500,000
Basis spread on variable rate	2.00%	2.00%
Fixed Rate Notes [Member] | $50.0 million, 0.84% plus 1.35% to 1.90% Note, due February 17, 2017
Debt Instrument [Line Items]
Notes payable	50,000,000	50,000,000
Face amount of debt	50,000,000	50,000,000
Imputed interest rate	0.84%	0.84%
Fixed Rate Notes [Member] | $50.0 million, 0.84% plus 1.35% to 1.90% Note, due February 17, 2017 | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.35%	1.35%
Fixed Rate Notes [Member] | $50.0 million, 0.84% plus 1.35% to 1.90% Note, due February 17, 2017 | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%	1.90%
Fixed Rate Notes [Member] | $37.0 million 3.76% Note, due December 1, 2020
Debt Instrument [Line Items]
Notes payable	36,090,000	37,000,000
Face amount of debt	37,000,000	37,000,000
Stated interest rate	3.76%	3.76%
Fixed Rate Notes [Member] | $6.5 million 3.80% Note, due January 1, 2019
Debt Instrument [Line Items]
Notes payable	6,355,000	6,500,000
Face amount of debt	6,500,000	6,500,000
Stated interest rate	3.80%	3.80%
Fixed Rate Notes [Member] | $19.0 million 4.15% Note, due December 1, 2024
Debt Instrument [Line Items]
Notes payable	19,000,000	0
Face amount of debt	19,000,000	19,000,000
Stated interest rate	4.15%	4.15%
Fixed Rate Notes [Member] | $20.2 million 4.28% Note, due June 6, 2023
Debt Instrument [Line Items]
Notes payable	20,200,000	20,200,000
Face amount of debt	20,200,000	20,200,000
Stated interest rate	4.28%	4.28%
Fixed Rate Notes [Member] | $14.0 million 4.34% Note, due September 11, 2024
Debt Instrument [Line Items]
Notes payable	14,000,000	0
Face amount of debt	14,000,000	14,000,000
Stated interest rate	4.34%	4.34%
Fixed Rate Notes [Member] | $14.3 million 4.34% Note, due September 11, 2024
Debt Instrument [Line Items]
Notes payable	14,300,000	0
Face amount of debt	14,300,000	14,300,000
Stated interest rate	4.34%	4.34%
Fixed Rate Notes [Member] | $1.0 million 4.75% Note, due December 31, 2014
Debt Instrument [Line Items]
Notes payable	0	1,087,000
Face amount of debt	1,000,000	1,000,000
Stated interest rate	4.75%	4.75%
Fixed Rate Notes [Member] | $16.5 million 4.97% Note, due September 26, 2023
Debt Instrument [Line Items]
Notes payable	16,450,000	16,450,000
Face amount of debt	16,500,000	16,500,000
Stated interest rate	4.97%	4.97%
Fixed Rate Notes [Member] | $15.1 million 4.99% Note, due January 6, 2024
Debt Instrument [Line Items]
Notes payable	15,060,000	15,060,000
Face amount of debt	15,100,000	15,100,000
Stated interest rate	4.99%	4.99%
Fixed Rate Notes [Member] | $9.2 million, Prime Rate less 2.00%, due December 29, 2017
Debt Instrument [Line Items]
Debt discount					1,300,000
Imputed interest rate					4.13%
Fixed Rate Notes [Member] | $9.2 million, Prime Rate less 2.00%, due December 29, 2017 | Prime Rate [Member]
Debt Instrument [Line Items]
Notes payable	7,888,000	7,875,000
Face amount of debt	9,200,000	9,200,000
Basis spread on variable rate	2.00%	2.00%
Fixed Rate Notes [Member] | $2.6 million 5.46% Note, due October 1, 2023
Debt Instrument [Line Items]
Notes payable	2,583,000	0
Face amount of debt	2,600,000	2,600,000
Stated interest rate	5.46%	5.46%
Fixed Rate Notes [Member] | $11.1 million 5.87% Note, due August 6, 2016
Debt Instrument [Line Items]
Notes payable	11,607,000	11,900,000
Face amount of debt	11,100,000	11,100,000
Stated interest rate	5.87%	5.87%
Floating Rate Notes [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.17%
Floating Rate Notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.35%
Floating Rate Notes [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 November 7, 2018 | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Notes payable	120,100,000	84,800,000
Floating Rate Notes [Member] | Unsecured line of credit, LIBOR plus 1.40% to 1.95%, due November 7, 2018 | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.40%	1.40%
Floating Rate Notes [Member] | Unsecured line of credit, LIBOR plus 1.40% to 1.95%, due November 7, 2018 | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.95%	1.95%
Floating Rate Notes [Member] | $50.0 million, LIBOR plus 1.35% to 1.90% Note, due November 7, 2019 | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Notes payable	50,000,000	0
Face amount of debt	50,000,000	50,000,000
Floating Rate Notes [Member] | $50.0 million, LIBOR plus 1.35% to 1.90% Note, due November 7, 2019 | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.35%	1.35%
Floating Rate Notes [Member] | $50.0 million, LIBOR plus 1.35% to 1.90% Note, due November 7, 2019 | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%	1.90%
Interest Rate Swap [Member] | $10.5 million, LIBOR plus 2.00% Note, due September 24, 2018
Debt Instrument [Line Items]
Stated interest rate	3.55%
Interest Rate Swap [Member] | $50.0 million, 0.84% plus 1.35% to 1.90% Note, due February 17, 2017
Debt Instrument [Line Items]
Stated interest rate	0.84%
Interest Rate Swap [Member] | $9.2 million, Prime Rate less 2.00%, due December 29, 2017
Debt Instrument [Line Items]
Stated interest rate	5.72%
Term Loan [Member]
Debt Instrument [Line Items]
Face amount of debt			50,000,000
Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			1.35%
Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			1.90%
Term Loan [Member] | $50.0 million, 0.84% plus 1.35% to 1.90% Note, due February 17, 2017
Debt Instrument [Line Items]
Face amount of debt	$50,000,000

Debt_Narrative_Details

Debt (Narrative) (Details) (USD $)

12 Months Ended

0 Months Ended

Dec. 31, 2014

Nov. 26, 2013

Jun. 19, 2013

Sep. 24, 2013

Aug. 08, 2012

Nov. 07, 2014

Dec. 31, 2013

31-May-13

Dec. 24, 2014

Nov. 26, 2014

Sep. 03, 2014

Aug. 26, 2014

Dec. 23, 2013

Dec. 16, 2013

Sep. 26, 2013

CollateralizedProperties

Debt Instrument [Line Items]

Long-term Debt

394,100,000

$264,300,000

Notes payable

394,093,000

261,372,000

Stated interest rate

5.70%

Number of collateralized properties (in collateralized properties)

20

19

Carrying value of collateralized properties

216,900,000

161,100,000

Face amount of debt

14,100,000

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%

Floating Rate Loan [Member]

Debt Instrument [Line Items]

Extinguishment of Debt, Amount

26,900,000

Fixed Rate Indebtedness [Member]

Debt Instrument [Line Items]

Extinguishment of Debt, Amount

10,100,000

Mercado at Scottsdale Ranch [Member]

Debt Instrument [Line Items]

Stated interest rate

5.87%

Noncash or Part Noncash Acquisition, Other Liabilities Assumed

932,000

Face amount of debt

11,100,000

Imputed interest rate

3.05%

Village Square at Dana Park Note [Member]

Debt Instrument [Line Items]

Stated interest rate

5.46%

Face amount of debt

2,600,000

Headquarters Note [Member]

Debt Instrument [Line Items]

Stated interest rate

4.15%

Face amount of debt

19,000,000

Pecos Note [Member]

Debt Instrument [Line Items]

Stated interest rate

4.34%

Face amount of debt

14,000,000

Starwood Note [Member]

Debt Instrument [Line Items]

Stated interest rate

4.34%

Face amount of debt

14,300,000

Woodlake Note [Member]

Debt Instrument [Line Items]

Stated interest rate

3.80%

Face amount of debt

6,500,000

Anthem Note [Member]

Debt Instrument [Line Items]

Stated interest rate

4.99%

Face amount of debt

15,100,000

Industrial Note [Member]

Debt Instrument [Line Items]

Stated interest rate

3.76%

Face amount of debt

37,000,000

Uptown Note [Member]

Debt Instrument [Line Items]

Stated interest rate

4.97%

Face amount of debt

16,500,000

Terravita Note [Member]

Debt Instrument [Line Items]

Face amount of debt

10,500,000

Terravita Note [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument [Line Items]

Description of variable rate basis

LIBOR

Basis spread on variable rate

2.00%

Pinnacle Note [Member]

Debt Instrument [Line Items]

Stated interest rate

4.28%

Face amount of debt

20,200,000

Floating Rate Notes [Member]

Debt Instrument [Line Items]

Long-term Debt

170,100,000

Description of variable rate basis

one-month LIBOR

Basis spread on variable rate

0.17%

Number of loans (in loans)

2

Floating Rate Notes [Member] | Minimum [Member]

Debt Instrument [Line Items]

Description of variable rate basis

LIBOR

Basis spread on variable rate

1.35%

Floating Rate Notes [Member] | Maximum [Member]

Debt Instrument [Line Items]

Description of variable rate basis

LIBOR

Basis spread on variable rate

1.95%

Floating Rate Notes [Member] | Paradise Plaza [Member]

Debt Instrument [Line Items]

Face amount of debt

9,200,000

Description of variable rate basis

prime

Basis spread below variable rate

2.00%

Imputed interest rate

4.13%

Debt discount

1,300,000

Floating Rate Notes [Member] | Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017

Debt Instrument [Line Items]

Credit facility, amount outstanding

220,100,000

Revolving Credit Facility [Member]

Debt Instrument [Line Items]

Line of Credit Facility, Expanded Maximum Borrowing Capacity

700,000,000

Credit facility, maximum borrowing capacity

400,000,000

Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument [Line Items]

Basis spread on variable rate

1.00%

Revolving Credit 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] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]

Debt Instrument [Line Items]

Basis spread on variable rate

1.95%

Revolving Credit Facility [Member] | Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017

Debt Instrument [Line Items]

Credit facility, remaining borrowing capacity

279,900,000

Term Loan [Member]

Debt Instrument [Line Items]

Face amount of debt

50,000,000

Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]

Debt Instrument [Line Items]

Basis spread on variable rate

1.35%

Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]

Debt Instrument [Line Items]

Basis spread on variable rate

1.90%

Existing Term Loan [Member]

Debt Instrument [Line Items]

Face amount of debt

50,000,000

Debt_Schedule_of_Maturities_of

Debt (Schedule of Maturities of Debt) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]
2015	$1,855
2016	13,269
2017	60,213
2018	132,236
2019	58,049
Thereafter	128,471
Long-Term Debt - Principal, Total	$394,093	$261,372

Debt_Contractual_Obligations_D

Debt (Contractual Obligations) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]
Long-Term Debt - Principal, Total	$394,093	$261,372
Long-Term Debt - Principal, Less than 1 year (2015)	1,855
Long-Term Debt - Principal, 1 - 3 years (2016 - 2017)	73,482
Long-Term Debt - Principal, 3 - 5 years (2018 - 2019)	190,285
Long-Term Debt - Principal, More than 5 years (after 2019)	128,471
Long-Term Debt - Fixed Interest, Total	52,544
Long-Term Debt - Fixed Interest, Less than 1 year (2015)	7,702
Long-Term Debt - Fixed Interest, 1 - 3 years (2016 - 2017)	13,976
Long-Term Debt - Fixed Interest, 3 - 5 years (2018 - 2019)	11,862
Long-Term Debt - Fixed Interest, More than 5 years (after 2019)	19,004
Long-Term Debt - Variable Interest, Total	9,206
Long-Term Debt - Variable Interest, Less than 1 year (2015)	3,134
Long-Term Debt - Variable Interest, 1 - 3 years (2016 - 2017)	4,411
Long-Term Debt - Variable Interest, 3 - 5 years (2018 - 2019)	1,661
Long-Term Debt - Variable Interest, More than 5 years (after 2019)	0
Unsecured revolving credit facility - Unused commitment fee, Total	2,741
Unsecured revolving credit facility - Unused commitment fee, Less than 1 year (2015)	700
Unsecured revolving credit facility - Unused commitment fee, 1 - 3 years (2016 - 2017)	1,400
Unsecured revolving credit facility - Unused commitment fee, 3 - 5 years (2018 - 2019)	641
Unsecured revolving credit facility - Unused commitment fee, More than 5 years (after 2019)	0
Operating Lease Obligations, Total	49
Operating Lease Obligations, Less than 1 year (2015)	29
Operating Lease Obligations, 1 - 3 years (2016 - 2017)	20
Operating Lease Obligations, 3 - 5 years (2018 - 2019)	0
Operating Lease Obligations, More than 5 years (after 2019)	0
Contractual Obligations, Total	458,633
Contractual Obligations, Less than 1 year (2015)	13,420
Contractual Obligations, 1 - 3 years (2016 - 2017)	93,289
Contractual Obligations, 3 - 5 years (2018 - 2019)	204,449
Contractual Obligations, More than 5 years (after 2019)	$147,475

Derivatives_and_Hedging_Activi2

Derivatives and Hedging Activities (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	31-May-13	Nov. 01, 2013	Mar. 08, 2013	Aug. 08, 2012
Derivative [Line Items]
Face amount of debt				$14,100,000
Interest Rate Swaps [Member] | Interest Expense [Member]
Derivative [Line Items]
Amount Recognized as Comprehensive Income (Loss)	-136,000	173,000	1,000
Amount of Gain (Loss) Recognized in Earnings	-838,000	-363,000	-146,000
Interest Rate Swaps [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Face amount of debt					10,500,000	50,000,000	9,200,000
Fixed interest rate					1.55%	0.84%	5.72%
Interest Rate Swaps [Member] | Accounts Payable and Accrued Expenses [Member]
Derivative [Line Items]
Estimated Fair Value	$1,016,000	$1,231,000

Earnings_Loss_Per_Share_Detail

Earnings (Loss) Per Share (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator:
Income (loss) from continuing operations	$890	$1,012	$1,135	$2,312	$1,254	$592	$902	$873	$5,349	$3,621	($165)
Less: Net (income) loss attributable to noncontrolling interests									-111	-115	10
Distributions paid on unvested restricted shares									-201	-50	-22
Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares									5,037	3,456	-177
Income from discontinued operations	2,023	109	145	120	41	43	101	113	2,397	298	218
Less: Net income attributable to noncontrolling interests									-49	-10	-13
Income from discontinued operations attributable to Whitestone REIT									2,348	288	205
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares									7,385	3,744	28
Denominator:
Weighted average number of common shares - basic									22,278,000	18,027,000	13,496,000
Effect of dilutive securities:
Unvested restricted shares									515,000	246,000	117,000
Weighted average number of common shares - dilutive									22,793,000	18,273,000	13,613,000
Basic:
Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.04	$0.04	$0.05	$0.10	$0.06	$0.03	$0.05	$0.05	$0.23	$0.19	($0.01)
Income from discontinued operations attributable to Whitestone REIT (in dollars per share)	$0.08	$0.01	$0	$0.01	$0	$0.01	$0.01	$0.01	$0.10	$0.02	$0.01
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.12	$0.05	$0.05	$0.11	$0.06	$0.04	$0.06	$0.06	$0.33	$0.21	$0
Diluted:
Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.03	$0.04	$0.05	$0.10	$0.06	$0.03	$0.05	$0.05	$0.22	$0.19	($0.01)
Income from discontinued operations attributable to Whitestone REIT (in dollars per share)	$0.09	$0.01	$0	$0.01	$0	$0	$0.01	$0.01	$0.10	$0.01	$0.01
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.12	$0.05	$0.05	$0.11	$0.06	$0.03	$0.06	$0.06	$0.32	$0.20	$0
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)									471,310	595,782	848,284
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Distributions to holders of certain restricted common shares									272	177	194
Distributions to holders of certain restricted common shares charged against earnings									$71	$127	$172

Federal_Income_Taxes_Details

Federal Income Taxes (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Ordinary income (unaudited)	53.30%	38.50%	34.10%
Return of capital (unaudited)	21.30%	61.30%	65.20%
Capital gain distributions (unaudited)	25.40%	0.20%	0.70%
Total	100.00%	100.00%	100.00%

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 21, 2012	Jul. 09, 2010	31-May-13	Dec. 05, 2013
Related Party Transaction [Line Items]
Executive relocation expense	$0	$0	$2,177,000
Stated interest rate						5.70%
Related party receivable		652,000
Executive Officer [Member]
Related Party Transaction [Line Items]
Sale of residence, shortfall threshold					2,450,000
Term of payment of housing expenses					1 year
Sale of residence, amount				1,125,000
Shortfall paid in cash				1,325,000
Expenses paid in cash				852,000
Executive relocation expense				2,177,000
Four Point Five Percent Due December 2013 [Member] | Executive Officer [Member]
Related Party Transaction [Line Items]
Note receivable, related party		$975,000
Stated interest rate		4.50%					5.20%

Equity_Details

Equity (Details) (USD $)	0 Months Ended		12 Months Ended			0 Months Ended	3 Months Ended
	Oct. 08, 2013	Aug. 28, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 08, 2012	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Jun. 19, 2013	Jun. 27, 2012	Oct. 09, 2012	10-May-12
Class of Stock [Line Items]
Common shares, authorized (in shares)			400,000,000	400,000,000			400,000,000				400,000,000
Common shares, par value per share (in dollars per share)	$0.00	$0.00	$0.00	$0.00			$0.00				$0.00
Preferred shares, shares authorized (in shares)			50,000,000	50,000,000			50,000,000				50,000,000
Preferred shares, par value per share (in dollars per share)			$0.00	$0.00			$0.00				$0.00
Conversion ratio for class A common stock to class B common stock (in shares)																1
Common shares, issued (in shares)	4,000,000	4,830,000	22,835,695	21,943,700			22,835,695				21,943,700
Amount authorized															$50,000,000
Share price of equity offering (in dollars per share)	$13.54	$12.80
Proceeds from issuance of common shares, net of offering costs	59,700,000	58,700,000	6,458,000	63,887,000	58,679,000
Ownership interest in operating partnership			98.30%
Conversion ratio for class A common stock to OP unit (in shares)			1				1
Weighted-average share ownership in operating partnership			97.90%	96.80%	94.10%
Offering costs					3,100,000
Payments of exchange offer costs			136,000	40,000	479,000
Common Class B [Member]
Class of Stock [Line Items]
Common shares, par value per share (in dollars per share)																0.001
Common Class A [Member]
Class of Stock [Line Items]
Common shares, par value per share (in dollars per share)																0.001
Common Stock [Member]
Class of Stock [Line Items]
Common shares, par value per share (in dollars per share)																	$0.00
OP Units [Member]
Class of Stock [Line Items]
OP units outstanding (in shares)			22,926,599	22,384,970			22,926,599				22,384,970
Conversion of stock, shares converted (in shares)			163,700	123,394
OP units owned (in shares)			22,528,207	21,822,878			22,528,207				21,822,878
Third Exchange Offer [Member] | Common Class A [Member]
Class of Stock [Line Items]
OP units outstanding (in shares)																		867,789
Conversion of stock, shares converted (in shares)						426,986
Third Exchange Offer [Member] | OP Units [Member]
Class of Stock [Line Items]
Common shares, authorized (in shares)																	786,191
OP units outstanding (in shares)																		453,642
Conversion of stock, shares converted (in shares)						121,156
Cash Distribution [Member]
Class of Stock [Line Items]
Total Amount Paid			26,089,000	20,985,000			6,598,000	6,583,000	6,519,000	6,389,000	5,953,000	5,030,000	5,001,000	5,001,000
Cash Distribution [Member] | Common Stock [Member]
Class of Stock [Line Items]
Distribution Per Common Share (in dollars per share)			$1.14	$1.14			$0.28	$0.28	$0.28	$0.28	$0.28	$0.28	$0.28	$0.28
Total Amount Paid			25,539,000	20,294,000			6,484,000	6,457,000	6,367,000	6,231,000	5,790,000	4,865,000	4,832,000	4,807,000
Cash Distribution [Member] | OP Units [Member]
Class of Stock [Line Items]
Distribution Per Common Share (in dollars per share)			$1.14	$1.14			$0.28	$0.28	$0.28	$0.28	$0.28	$0.28	$0.28	$0.28
Total Amount Paid			550,000	691,000			114,000	126,000	152,000	158,000	163,000	165,000	169,000	194,000
Portion Attributable to Over-Allotment Option [Member]
Class of Stock [Line Items]
Common shares, issued (in shares)	600,000	630,000
ATM Program [Member]
Class of Stock [Line Items]
Offering costs			100,000	200,000
ATM Program [Member] | Common Stock [Member]
Class of Stock [Line Items]
Common shares sold			456,090	282,239
Proceeds from issuance			6,400,000	4,200,000
Payments of exchange offer costs			$100,000

Incentive_Share_Plan_Narrative

Incentive Share Plan (Narrative) (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 02, 2014	Dec. 22, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$4,631,000	$2,284,000	$725,000
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%
Award vesting period	54 months
Share-based compensation	4,736,000	2,284,000	725,000
Unrecognized compensation cost	16,500,000
Period from recognition	38 months
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]
Other than options vesting percentage	81.00%
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
Number of employees granted an award				51
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] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	54 months
Unrecognized compensation cost	15,700,000
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	$800,000
Period from recognition	27 months

Incentive_Share_Plan_Schedule_

Incentive Share Plan (Schedule of Share-Based Incentive Plan Activity) (Details) (2008 Long-Term Equity Incentive Ownership Plan [Member], USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares, Non-vested (in shares)	759,711
Shares, Granted (in shares)	2,058,930	328,005	99,700
Modified to new agreements (in shares)	-633,704
Modified from existing agreements (in shares)	633,704
Shares, Vested (in shares)	-133,774	-15,270	-16,208
Shares, Forfeited (in shares)	-273,799
Shares, Non-vested (in shares)	2,411,068	759,711
Shares, Available for grant (in shares)	629,178
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted-Average Grant Date Fair Value, Non-vested (in dollars per share)	$13.69
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$14.40	$15.43	$13.03
Modified to new agreements (in dollars per share)	$13.88
Modified from existing agreements (in dollars per share)	$14.59
Weighted-Average Grant Date Fair Value, Vested (in dollars per share)	$12.86
Weighted-Average Grant Date Fair Value, Forfeited (in dollars per share)	$14.41
Weighted-Average Grant Date Fair Value, Non-vested (in dollars per share)	$14.45	$13.69

Incentive_Share_Plan_Schedule_1

Incentive Share Plan (Schedule of Nonvested and Vested Shares Activity) (Details) (2008 Long-Term Equity Incentive Ownership Plan [Member], USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
2008 Long-Term Equity Incentive Ownership Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares, Granted, Non-Vested Shares Isused (in shares)	2,058,930	328,005	99,700
Shares, Vested (in shares)	133,774	15,270	16,208
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Shares Granted, Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$14.40	$15.43	$13.03
Shares Vested, Total Vest-Date Fair Value	$1,721	$224	$223

Grants_to_Trustees_Details

Grants to Trustees (Details) (Individual Trustee Grant Agreements [Member], USD $)	0 Months Ended
	Dec. 09, 2014	Oct. 24, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of independent trustees	2	4
Number of trustee emeritus		1
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock granted to trustees (in shares)	2,314	7,500
Stock granted to trustees, vested in period (in shares)		1,500
Stock granted to trustees, weighted-average grant date fair value (in dollars per share)	$14.69	$14.53

Select_Quarterly_Financial_Dat2

Select Quarterly Financial Data (unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Revenues from continuing operations	$19,205	$18,540	$17,261	$17,376	$16,781	$15,870	$14,375	$13,466	$72,382	$60,492	$44,994
Income from continuing operations	890	1,012	1,135	2,312	1,254	592	902	873	5,349	3,621	-165
Income from discontinued operations	2,023	109	145	120	41	43	101	113	2,397	298	218
Net income (loss) attributable to Whitestone REIT	$2,862	$1,100	$1,252	$2,372	$1,261	$614	$970	$949	$7,586	$3,794	$50
Basic Earnings Per Share:
Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.04	$0.04	$0.05	$0.10	$0.06	$0.03	$0.05	$0.05	$0.23	$0.19	($0.01)
Income from discontinued operations attributable to Whitestone REIT (in dollars per share)	$0.08	$0.01	$0	$0.01	$0	$0.01	$0.01	$0.01	$0.10	$0.02	$0.01
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.12	$0.05	$0.05	$0.11	$0.06	$0.04	$0.06	$0.06	$0.33	$0.21	$0
Diluted Earnings Per Share:
Income (loss) from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.03	$0.04	$0.05	$0.10	$0.06	$0.03	$0.05	$0.05	$0.22	$0.19	($0.01)
Income from discontinued operations attributable to Whitestone REIT (in dollars per share)	$0.09	$0.01	$0	$0.01	$0	$0	$0.01	$0.01	$0.10	$0.01	$0.01
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares (in dollars per share)	$0.12	$0.05	$0.05	$0.11	$0.06	$0.03	$0.06	$0.06	$0.32	$0.20	$0

Schedule_II_Valuation_and_Qual1

Schedule II - Valuation and Qualifying Accounts Schedule II - Valuation and Qualifying Accounts (Details) (Allowance for Doubtful Accounts [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$3,613	$2,226	$1,343
Charged to Costs and Expense	1,602	1,638	986
Deductions from Reserves	-251	-251	-103
Balance at End of Year	$4,964	$3,613	$2,226

Schedule_III_Real_Estate_and_A1

Schedule III - Real Estate and Accumulated Depreciation (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Initial Cost
Land	$174,734,000
Building and Improvements	450,769,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	46,918,000
Carrying Costs	1,234,000
Gross Amount at which Carried at End of Period
Land	174,734,000
Building and Improvements	498,921,000
Total	673,655,000	537,872,000	401,325,000
Accumulated Depreciation		71,587,000
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at beginning of period	537,872,000	401,325,000	284,152,000
Additions during the period:
Acquisitions	132,734,000	130,731,000	107,392,000
Improvements	9,330,000	6,164,000	12,631,000
Real estate, total additions	142,064,000	136,895,000	120,023,000
Deductions - cost of real estate sold or retired	-6,281,000	-348,000	-2,850,000
Balance at close of period	673,655,000	537,872,000	401,325,000
Aggregate cost of real estate for federal income tax purposes	649,771,000
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
Headquarters Village [Member]
Additions during the period:
Amount of encumbrances	19,000,000
Mercado at Scottsdale Ranch [Member]
Additions during the period:
Amount of encumbrances	11,100,000
Paradise Plaza [Member]
Additions during the period:
Amount of encumbrances	9,200,000
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
Uptown Tower [Member]
Additions during the period:
Amount of encumbrances	16,500,000
Woodlake Plaza [Member]
Additions during the period:
Amount of encumbrances	6,500,000
All Office/Flex Communities Except Corporate Park Northwest and Brookhill [Member]
Additions during the period:
Amount of encumbrances	37,000,000
Total Operating Portfolio [Member]
Initial Cost
Land	140,138,000
Building and Improvements	385,153,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	46,498,000
Carrying Costs	517,000
Gross Amount at which Carried at End of Period
Land	140,138,000
Building and Improvements	432,168,000
Total	572,306,000
Accumulated Depreciation		71,015,000
Additions during the period:
Balance at close of period	572,306,000
Retail Communities [Member]
Initial Cost
Land	125,288,000
Building and Improvements	310,862,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	32,360,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	125,288,000
Building and Improvements	343,222,000
Total	468,510,000
Accumulated Depreciation		40,875,000
Additions during the period:
Balance at close of period	468,510,000
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)	196,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	5,126,000
Building and Improvements	4,282,000
Total	9,408,000
Accumulated Depreciation		416,000
Date Acquired	16-Aug-11
Additions during the period:
Balance at close of period	9,408,000
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)	135,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	4,790,000
Building and Improvements	18,108,000
Total	22,898,000
Accumulated Depreciation		702,000
Date Acquired	28-Jun-13
Additions during the period:
Balance at close of period	22,898,000
Retail Communities [Member] | Bellnot Square [Member]
Initial Cost
Land	1,154,000
Building and Improvements	4,638,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	322,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,154,000
Building and Improvements	4,960,000
Total	6,114,000
Accumulated Depreciation		1,660,000
Date Acquired	1-Jan-02
Additions during the period:
Balance at close of period	6,114,000
Retail Communities [Member] | Bissonnet Beltway [Member]
Initial Cost
Land	415,000
Building and Improvements	1,947,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	399,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	415,000
Building and Improvements	2,346,000
Total	2,761,000
Accumulated Depreciation		1,455,000
Date Acquired	1-Jan-99
Additions during the period:
Balance at close of period	2,761,000
Retail Communities [Member] | Centre South [Member]
Initial Cost
Land	481,000
Building and Improvements	1,596,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	580,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	481,000
Building and Improvements	2,176,000
Total	2,657,000
Accumulated Depreciation		929,000
Date Acquired	1-Jan-00
Additions during the period:
Balance at close of period	2,657,000
Retail Communities [Member] | The Citadel [Member]
Initial Cost
Land	472,000
Building and Improvements	1,777,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	2,492,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	472,000
Building and Improvements	4,269,000
Total	4,741,000
Additions during the period:
Balance at close of period	4,741,000
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)	500,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,976,000
Building and Improvements	2,204,000
Total	4,180,000
Additions during the period:
Balance at close of period	4,180,000
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)	1,162,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	5,573,000
Building and Improvements	10,990,000
Total	16,563,000
Additions during the period:
Balance at close of period	16,563,000
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)	1,261,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,767,000
Building and Improvements	4,494,000
Total	6,261,000
Additions during the period:
Balance at close of period	6,261,000
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)	-38,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	6,209,000
Building and Improvements	13,783,000
Total	19,992,000
Additions during the period:
Balance at close of period	19,992,000
Retail Communities [Member] | Holly Knight [Member]
Initial Cost
Land	320,000
Building and Improvements	1,293,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	165,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	320,000
Building and Improvements	1,458,000
Total	1,778,000
Accumulated Depreciation		902,000
Date Acquired	1-Aug-00
Additions during the period:
Balance at close of period	1,778,000
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)	93,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	7,171,000
Building and Improvements	18,532,000
Total	25,703,000
Accumulated Depreciation		846,000
Date Acquired	28-Mar-13
Additions during the period:
Balance at close of period	25,703,000
Retail Communities [Member] | Kempwood Plaza [Member]
Initial Cost
Land	733,000
Building and Improvements	1,798,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	557,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	733,000
Building and Improvements	2,355,000
Total	3,088,000
Accumulated Depreciation		1,092,000
Date Acquired	2-Feb-99
Additions during the period:
Balance at close of period	3,088,000
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)	2,918,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,546,000
Building and Improvements	7,207,000
Total	8,753,000
Accumulated Depreciation		2,783,000
Date Acquired	1-Jan-00
Additions during the period:
Balance at close of period	8,753,000
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)	975,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,305,000
Building and Improvements	6,299,000
Total	7,604,000
Additions during the period:
Balance at close of period	7,604,000
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)	857,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	9,710,000
Building and Improvements	27,636,000
Total	37,346,000
Additions during the period:
Balance at close of period	37,346,000
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)	137,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	8,728,000
Building and Improvements	12,697,000
Total	21,425,000
Accumulated Depreciation		515,000
Date Acquired	19-Jun-13
Additions during the period:
Balance at close of period	21,425,000
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)	406,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	6,155,000
Building and Improvements	10,627,000
Total	16,782,000
Additions during the period:
Balance at close of period	16,782,000
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)	901,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	6,648,000
Building and Improvements	23,367,000
Total	30,015,000
Accumulated Depreciation		1,908,000
Date Acquired	22-Dec-11
Additions during the period:
Balance at close of period	30,015,000
Retail Communities [Member] | Providence [Member]
Initial Cost
Land	918,000
Building and Improvements	3,675,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	630,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	918,000
Building and Improvements	4,305,000
Total	5,223,000
Accumulated Depreciation		1,704,000
Date Acquired	30-Mar-01
Additions during the period:
Balance at close of period	5,223,000
Retail Communities [Member] | Shaver [Member]
Initial Cost
Land	184,000
Building and Improvements	633,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	-33,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	184,000
Building and Improvements	600,000
Total	784,000
Accumulated Depreciation		280,000
Date Acquired	17-Dec-99
Additions during the period:
Balance at close of period	784,000
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)	481,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	3,781,000
Building and Improvements	15,604,000
Total	19,385,000
Accumulated Depreciation		817,000
Date Acquired	28-Dec-12
Additions during the period:
Balance at close of period	19,385,000
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)	121,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	4,093,000
Building and Improvements	11,608,000
Total	15,701,000
Accumulated Depreciation		908,000
Date Acquired	28-Dec-11
Additions during the period:
Balance at close of period	15,701,000
Retail Communities [Member] | South Richey [Member]
Initial Cost
Land	778,000
Building and Improvements	2,584,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	1,895,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	778,000
Building and Improvements	4,479,000
Total	5,257,000
Accumulated Depreciation		1,554,000
Date Acquired	25-Aug-99
Additions during the period:
Balance at close of period	5,257,000
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)	322,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	2,340,000
Building and Improvements	7,618,000
Total	9,958,000
Accumulated Depreciation		1,273,000
Date Acquired	16-Jan-09
Additions during the period:
Balance at close of period	9,958,000
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)	0
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	5,805,000
Building and Improvements	12,335,000
Total	18,140,000
Accumulated Depreciation		79,000
Date Acquired	19-Sep-14
Additions during the period:
Balance at close of period	18,140,000
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)	793,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,781,000
Building and Improvements	7,918,000
Total	9,699,000
Accumulated Depreciation		2,202,000
Date Acquired	8-Sep-04
Additions during the period:
Balance at close of period	9,699,000
Retail Communities [Member] | Sunridge [Member]
Initial Cost
Land	276,000
Building and Improvements	1,186,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	280,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	276,000
Building and Improvements	1,466,000
Total	1,742,000
Accumulated Depreciation		564,000
Date Acquired	1-Jan-02
Additions during the period:
Balance at close of period	1,742,000
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)	319,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	3,610,000
Building and Improvements	3,053,000
Total	6,663,000
Accumulated Depreciation		210,000
Date Acquired	29-May-12
Additions during the period:
Balance at close of period	6,663,000
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)	544,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	7,171,000
Building and Improvements	9,936,000
Total	17,107,000
Accumulated Depreciation		914,000
Date Acquired	8-Aug-11
Additions during the period:
Balance at close of period	17,107,000
Retail Communities [Member] | Torrey Square [Member]
Initial Cost
Land	1,981,000
Building and Improvements	2,971,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	1,155,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,981,000
Building and Improvements	4,126,000
Total	6,107,000
Accumulated Depreciation		1,875,000
Date Acquired	1-Jan-00
Additions during the period:
Balance at close of period	6,107,000
Retail Communities [Member] | Town Park [Member]
Initial Cost
Land	850,000
Building and Improvements	2,911,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	173,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	850,000
Building and Improvements	3,084,000
Total	3,934,000
Accumulated Depreciation		1,598,000
Date Acquired	1-Jan-99
Additions during the period:
Balance at close of period	3,934,000
Retail Communities [Member] | Village Square at Dana Park [Member]
Initial Cost
Land	10,877,000
Building and Improvements	40,252,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	1,295,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	10,877,000
Building and Improvements	41,547,000
Total	52,424,000
Accumulated Depreciation		2,344,000
Date Acquired	21-Sep-12
Additions during the period:
Balance at close of period	52,424,000
Retail Communities [Member] | Webster Pointe [Member]
Initial Cost
Land	720,000
Building and Improvements	1,150,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	171,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	720,000
Building and Improvements	1,321,000
Total	2,041,000
Accumulated Depreciation		631,000
Date Acquired	1-Jan-00
Additions during the period:
Balance at close of period	2,041,000
Retail Communities [Member] | Westchase [Member]
Initial Cost
Land	423,000
Building and Improvements	1,751,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	2,742,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	423,000
Building and Improvements	4,493,000
Total	4,916,000
Accumulated Depreciation		1,314,000
Date Acquired	1-Jan-02
Additions during the period:
Balance at close of period	4,916,000
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)	0
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	6,800,000
Building and Improvements	14,003,000
Total	20,803,000
Accumulated Depreciation		0
Date Acquired	24-Dec-14
Additions during the period:
Balance at close of period	20,803,000
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)	7,454,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	2,621,000
Building and Improvements	17,936,000
Total	20,557,000
Accumulated Depreciation		4,828,000
Date Acquired	16-Dec-03
Additions during the period:
Balance at close of period	20,557,000
Office Flex Communities [Member]
Initial Cost
Land	9,439,000
Building and Improvements	41,074,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	6,928,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	9,439,000
Building and Improvements	48,002,000
Total	57,441,000
Accumulated Depreciation		20,139,000
Additions during the period:
Balance at close of period	57,441,000
Office Flex Communities [Member] | Brookhill [Member]
Initial Cost
Land	186,000
Building and Improvements	788,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	357,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	186,000
Building and Improvements	1,145,000
Total	1,331,000
Accumulated Depreciation		397,000
Date Acquired	1-Jan-02
Additions during the period:
Balance at close of period	1,331,000
Office Flex Communities [Member] | Corporate Park Northwest [Member]
Initial Cost
Land	1,534,000
Building and Improvements	6,306,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	1,583,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,534,000
Building and Improvements	7,889,000
Total	9,423,000
Accumulated Depreciation		2,725,000
Date Acquired	1-Jan-02
Additions during the period:
Balance at close of period	9,423,000
Office Flex Communities [Member] | Corporate Park West [Member]
Initial Cost
Land	2,555,000
Building and Improvements	10,267,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	903,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	2,555,000
Building and Improvements	11,170,000
Total	13,725,000
Accumulated Depreciation		4,007,000
Date Acquired	1-Jan-02
Additions during the period:
Balance at close of period	13,725,000
Office Flex Communities [Member] | Corporate Park Woodland [Member]
Initial Cost
Land	652,000
Building and Improvements	5,330,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	514,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	652,000
Building and Improvements	5,844,000
Total	6,496,000
Accumulated Depreciation		2,761,000
Date of Construction	1-Nov-00
Additions during the period:
Balance at close of period	6,496,000
Office Flex Communities [Member] | Dairy Ashford [Member]
Initial Cost
Land	226,000
Building and Improvements	1,211,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	80,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	226,000
Building and Improvements	1,291,000
Total	1,517,000
Accumulated Depreciation		603,000
Date Acquired	1-Jan-99
Additions during the period:
Balance at close of period	1,517,000
Office Flex Communities [Member] | Holly Hall Industrial Park [Member]
Initial Cost
Land	608,000
Building and Improvements	2,516,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	383,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	608,000
Building and Improvements	2,899,000
Total	3,507,000
Accumulated Depreciation		1,040,000
Date Acquired	1-Jan-02
Additions during the period:
Balance at close of period	3,507,000
Office Flex Communities [Member] | Interstate 10 Warehouse [Member]
Initial Cost
Land	208,000
Building and Improvements	3,700,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	386,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	208,000
Building and Improvements	4,086,000
Total	4,294,000
Accumulated Depreciation		2,434,000
Date Acquired	1-Jan-99
Additions during the period:
Balance at close of period	4,294,000
Office Flex Communities [Member] | Main Park [Member]
Initial Cost
Land	1,328,000
Building and Improvements	2,721,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	523,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,328,000
Building and Improvements	3,244,000
Total	4,572,000
Accumulated Depreciation		1,445,000
Date Acquired	1-Jan-99
Additions during the period:
Balance at close of period	4,572,000
Office Flex Communities [Member] | Plaza Park [Member]
Initial Cost
Land	902,000
Building and Improvements	3,294,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	1,029,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	902,000
Building and Improvements	4,323,000
Total	5,225,000
Accumulated Depreciation		1,987,000
Date Acquired	1-Jan-00
Additions during the period:
Balance at close of period	5,225,000
Office Flex Communities [Member] | Westbelt Plaza [Member]
Initial Cost
Land	568,000
Building and Improvements	2,165,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	641,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	568,000
Building and Improvements	2,806,000
Total	3,374,000
Accumulated Depreciation		1,501,000
Date Acquired	1-Jan-99
Additions during the period:
Balance at close of period	3,374,000
Office Flex Communities [Member] | Westgate Service Center [Member]
Initial Cost
Land	672,000
Building and Improvements	2,776,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	529,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	672,000
Building and Improvements	3,305,000
Total	3,977,000
Accumulated Depreciation		1,239,000
Date Acquired	1-Jan-02
Additions during the period:
Balance at close of period	3,977,000
Office Communities [Member]
Initial Cost
Land	5,411,000
Building and Improvements	33,217,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	7,210,000
Carrying Costs	517,000
Gross Amount at which Carried at End of Period
Land	5,411,000
Building and Improvements	40,944,000
Total	46,355,000
Accumulated Depreciation		10,001,000
Additions during the period:
Balance at close of period	46,355,000
Office Communities [Member] | 9101 LBJ Freeway [Member]
Initial Cost
Land	1,597,000
Building and Improvements	6,078,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	1,120,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,597,000
Building and Improvements	7,198,000
Total	8,795,000
Accumulated Depreciation		1,816,000
Date Acquired	10-Aug-05
Additions during the period:
Balance at close of period	8,795,000
Office Communities [Member] | Pima Norte [Member]
Initial Cost
Land	1,086,000
Building and Improvements	7,162,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	1,690,000
Carrying Costs	517,000
Gross Amount at which Carried at End of Period
Land	1,086,000
Building and Improvements	9,369,000
Total	10,455,000
Accumulated Depreciation		1,548,000
Date Acquired	4-Oct-07
Additions during the period:
Balance at close of period	10,455,000
Office Communities [Member] | Uptown Tower [Member]
Initial Cost
Land	1,621,000
Building and Improvements	15,551,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	3,149,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,621,000
Building and Improvements	18,700,000
Total	20,321,000
Accumulated Depreciation		5,076,000
Date Acquired	22-Nov-05
Additions during the period:
Balance at close of period	20,321,000
Office Communities [Member] | Woodlake Plaza [Member]
Initial Cost
Land	1,107,000
Building and Improvements	4,426,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	1,251,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	1,107,000
Building and Improvements	5,677,000
Total	6,784,000
Accumulated Depreciation		1,561,000
Date Acquired	14-Mar-05
Additions during the period:
Balance at close of period	6,784,000
Development Portfolio [Member]
Initial Cost
Land	26,593,000
Building and Improvements	65,616,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	25,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	26,593,000
Building and Improvements	65,641,000
Total	92,234,000
Accumulated Depreciation		572,000
Additions during the period:
Balance at close of period	92,234,000
Development Portfolio [Member] | The Citadel [Member]
Gross Amount at which Carried at End of Period
Accumulated Depreciation		675,000
Date Acquired	28-Sep-10
Development Portfolio [Member] | Desert Canyon [Member]
Gross Amount at which Carried at End of Period
Accumulated Depreciation		271,000
Date Acquired	13-Apr-11
Development Portfolio [Member] | Fountain Square [Member]
Gross Amount at which Carried at End of Period
Accumulated Depreciation		676,000
Date Acquired	21-Sep-12
Development Portfolio [Member] | Gilbert Tuscany Village [Member]
Gross Amount at which Carried at End of Period
Accumulated Depreciation		609,000
Date Acquired	28-Jun-11
Development Portfolio [Member] | Heritage Trace Plaza [Member]
Gross Amount at which Carried at End of Period
Accumulated Depreciation		177,000
Date Acquired	1-Jul-14
Development Portfolio [Member] | MarketPlace at Central [Member]
Gross Amount at which Carried at End of Period
Accumulated Depreciation		693,000
Date Acquired	1-Nov-10
Development Portfolio [Member] | Market Street at DC Ranch [Member]
Gross Amount at which Carried at End of Period
Accumulated Depreciation		808,000
Date Acquired	5-Dec-13
Development Portfolio [Member] | Paradise Plaza [Member]
Gross Amount at which Carried at End of Period
Accumulated Depreciation		663,000
Date Acquired	8-Aug-12
Development Portfolio [Member] | Corporate Park Woodland II [Member]
Initial Cost
Land	2,758,000
Building and Improvements	0
Costs Capitalized Subsequent to Acquisition
Improvements (net)	5,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	2,758,000
Building and Improvements	5,000
Total	2,763,000
Accumulated Depreciation		3,000
Date Acquired	17-Oct-13
Additions during the period:
Balance at close of period	2,763,000
Development Portfolio [Member] | Fountain Hills Plaza [Member]
Initial Cost
Land	5,113,000
Building and Improvements	15,340,000
Costs Capitalized Subsequent to Acquisition
Improvements (net)	11,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	5,113,000
Building and Improvements	15,351,000
Total	20,464,000
Accumulated Depreciation		492,000
Date Acquired	7-Oct-13
Additions during the period:
Balance at close of period	20,464,000
Development Portfolio [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)	3,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	7,604,000
Building and Improvements	22,615,000
Total	30,219,000
Accumulated Depreciation		48,000
Date Acquired	5-Nov-14
Additions during the period:
Balance at close of period	30,219,000
Development Portfolio [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)	6,000
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	5,198,000
Building and Improvements	13,373,000
Total	18,571,000
Accumulated Depreciation		29,000
Date Acquired	5-Nov-14
Additions during the period:
Balance at close of period	18,571,000
Development Portfolio [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)	0
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	5,920,000
Building and Improvements	14,297,000
Total	20,217,000
Accumulated Depreciation		0
Date Acquired	24-Dec-14
Additions during the period:
Balance at close of period	20,217,000
Property Held for Development [Member]
Initial Cost
Land	8,003,000
Building and Improvements	0
Costs Capitalized Subsequent to Acquisition
Improvements (net)	395,000
Carrying Costs	717,000
Gross Amount at which Carried at End of Period
Land	8,003,000
Building and Improvements	1,112,000
Total	9,115,000
Accumulated Depreciation		0
Additions during the period:
Balance at close of period	9,115,000
Property 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
Accumulated Depreciation		0
Date Acquired	28-Jun-13
Additions during the period:
Balance at close of period	204,000
Property 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
Accumulated Depreciation		0
Date Acquired	5-Dec-13
Additions during the period:
Balance at close of period	704,000
Property 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)	0
Carrying Costs	0
Gross Amount at which Carried at End of Period
Land	4,000,000
Building and Improvements	0
Total	4,000,000
Accumulated Depreciation		0
Date Acquired	21-Sep-12
Additions during the period:
Balance at close of period	4,000,000
Property 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
Accumulated Depreciation		0
Date Acquired	7-Oct-13
Additions during the period:
Balance at close of period	277,000
Property Held for Development [Member] | Pinnacle Phase II [Member]
Initial Cost
Land	1,000,000
Building and Improvements	0
Costs Capitalized Subsequent to Acquisition
Improvements (net)	219,000
Carrying Costs	337,000
Gross Amount at which Carried at End of Period
Land	1,000,000
Building and Improvements	556,000
Total	1,556,000
Accumulated Depreciation		0
Date Acquired	28-Dec-11
Additions during the period:
Balance at close of period	1,556,000
Property Held for Development [Member] | Shops at Starwood Phase III [Member]
Initial Cost
Land	1,818,000
Building and Improvements	0
Costs Capitalized Subsequent to Acquisition
Improvements (net)	176,000
Carrying Costs	380,000
Gross Amount at which Carried at End of Period
Land	1,818,000
Building and Improvements	556,000
Total	2,374,000
Accumulated Depreciation		0
Date Acquired	28-Dec-11
Additions during the period:
Balance at close of period	$2,374,000
Minimum [Member] | Retail Communities [Member] | Ahwatukee Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Anthem Marketplace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Bellnot Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Bissonnet Beltway [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Centre South [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | The Citadel [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Desert Canyon [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Fountain Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Gilbert Tuscany Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Heritage Trace Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Holly Knight [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Headquarters Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Kempwood Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Lion Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | MarketPlace at Central [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Market Street at DC Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Mercado at Scottsdale Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Paradise Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Pinnacle of Scottsdale [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Providence [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Shaver [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Shops at Pecos Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Shops at Starwood [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | South Richey [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Spoerlein Commons [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | The Strand at Huebner Oaks [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | SugarPark Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Sunridge [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Sunset at Pinnacle Peak [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Terravita Marketplace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Torrey Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Town Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Village Square at Dana Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Webster Pointe [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Westchase [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Williams Trace Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Retail Communities [Member] | Windsor Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Brookhill [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Corporate Park Northwest [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Corporate Park West [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Corporate Park Woodland [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Dairy Ashford [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Holly Hall Industrial Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Interstate 10 Warehouse [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Main Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Plaza Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Westbelt Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Flex Communities [Member] | Westgate Service Center [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Communities [Member] | 9101 LBJ Freeway [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Communities [Member] | Pima Norte [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Communities [Member] | Uptown Tower [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Office Communities [Member] | Woodlake Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Development Portfolio [Member] | Corporate Park Woodland II [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Development Portfolio [Member] | Fountain Hills Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Development Portfolio [Member] | Fulton Ranch Towne Center [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Development Portfolio [Member] | The Promenade at Fulton Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Minimum [Member] | Development Portfolio [Member] | The Shops at Williams Trace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	5 years
Maximum [Member] | Retail Communities [Member] | Ahwatukee Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Anthem Marketplace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Bellnot Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Bissonnet Beltway [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Centre South [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | The Citadel [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Desert Canyon [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Fountain Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Gilbert Tuscany Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Heritage Trace Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Holly Knight [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Headquarters Village [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Kempwood Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Lion Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | MarketPlace at Central [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Market Street at DC Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Mercado at Scottsdale Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Paradise Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Pinnacle of Scottsdale [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Providence [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Shaver [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Shops at Pecos Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Shops at Starwood [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | South Richey [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Spoerlein Commons [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | The Strand at Huebner Oaks [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | SugarPark Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Sunridge [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Sunset at Pinnacle Peak [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Terravita Marketplace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Torrey Square [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Town Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Village Square at Dana Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Webster Pointe [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Westchase [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Williams Trace Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Retail Communities [Member] | Windsor Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Brookhill [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Corporate Park Northwest [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Corporate Park West [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Corporate Park Woodland [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Dairy Ashford [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Holly Hall Industrial Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Interstate 10 Warehouse [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Main Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Plaza Park [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Westbelt Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Flex Communities [Member] | Westgate Service Center [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Communities [Member] | 9101 LBJ Freeway [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Communities [Member] | Pima Norte [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Communities [Member] | Uptown Tower [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Office Communities [Member] | Woodlake Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Development Portfolio [Member] | Corporate Park Woodland II [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Development Portfolio [Member] | Fountain Hills Plaza [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Development Portfolio [Member] | Fulton Ranch Towne Center [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Development Portfolio [Member] | The Promenade at Fulton Ranch [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years
Maximum [Member] | Development Portfolio [Member] | The Shops at Williams Trace [Member]
Gross Amount at which Carried at End of Period
Depreciation Life	39 years