Star Equity (STRR) 10-Q 13 Aug 19 2019 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Jul. 30, 2019
Document And Entity Information [Abstract]
Entity Registrant Name	DIGIRAD CORP
Entity Central Index Key	0000707388
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Outstanding (in shares)		2,042,493
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Current Reporting Status	Yes
Entity Shell Company	false

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Revenues	$ 23,282	$ 24,351	$ 44,884	$ 47,142
Total revenues	25,798	27,080	49,710	52,545
Cost of revenues:
Cost of revenues	20,794	21,513	40,725	42,371
Gross profit	5,004	5,567	8,985	10,174
Operating expenses:
Marketing and sales	1,215	1,461	2,358	2,928
General and administrative	3,652	3,522	7,342	7,914
Amortization of intangible assets	283	356	566	713
Goodwill impairment	0	476	0	476
Merger and finance costs	1,000	0	1,000	0
Total operating expenses	6,150	5,815	11,266	12,031
Loss from operations	(1,146)	(248)	(2,281)	(1,857)
Other expense, net
Other expense, net	(5)	(19)	(203)	(36)
Interest expense, net	(254)	(189)	(435)	(363)
Loss on extinguishment of debt	0	0	(151)	(43)
Total other expense	(491)	(208)	(1,021)	(442)
Gain (Loss) on Sale of Properties	(232)	0	(232)	0
Loss before income taxes	(1,637)	(456)	(3,302)	(2,299)
Income tax benefit	162	106	170	561
Net loss from continuing operations	(1,475)	(350)	(3,132)	(1,738)
Net income from discontinued operations	266	0	266	5,494
Net (loss) income	$ (1,209)	$ (350)	$ (2,866)	$ 3,756
Net (loss) income per share—basic and diluted
Continuing operations (in usd per share)	$ (0.72)	$ (0.17)	$ (1.54)	$ (0.86)
Discontinued operations (in usd per share)	0.13	0	0.13	2.73
Net (loss) income per share—basic and diluted (in usd per share)	(0.59)	(0.17)	(1.41)	1.87
Dividends declared per common share (in usd per share)	$ 0	$ 0.55	$ 0	$ 1.1
Other comprehensive (loss) income:
Reclassification of tax provision impact	$ 0	$ 0	$ 22	$ 0
Reclassification of unrealized gains on equity securities to retained earnings	0	0	0	(17)
Total other comprehensive income (loss)	0	0	22	(17)
Comprehensive (loss) income	(1,209)	(350)	(2,844)	3,739
Services
Revenues:
Revenues	22,749	24,324	44,138	46,947
Cost of revenues:
Cost of revenues	18,648	20,023	36,842	39,284
Product and product-related
Revenues:
Revenues	3,049	2,756	5,572	5,598
Cost of revenues:
Cost of revenues	1,969	1,490	3,706	3,087
Real estate operations
Revenues:
Revenues	0	0	0	0
Cost of revenues:
Cost of revenues	$ 177	$ 0	$ 177	$ 0

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 864	$ 1,545
Equity securities	17	153
Accounts receivable, net	12,783	12,642
Inventories, net	5,781	5,402
Restricted cash	168	167
Other current assets	1,456	1,285
Total current assets	21,069	21,194
Property and equipment, net	24,324	21,645
Operating lease right-of-use assets, net	3,973
Intangible assets, net	4,662	5,228
Goodwill	1,745	1,745
Restricted cash	0	101
Deferred tax assets	75	0
Due from Related Parties, Noncurrent	1,275	275
Other assets	728	406
Total assets	57,851	50,594
Current liabilities:
Accounts payable	4,584	5,206
Accrued compensation	4,121	3,862
Accrued warranty	283	197
Deferred revenue	1,455	1,687
Operating lease liabilities	1,427
Other current liabilities	2,939	2,265
Total current liabilities	14,809	13,217
Long-term debt	15,314	9,500
Deferred tax liabilities	121	121
Operating lease liabilities, net of current portion	2,674
Other liabilities	1,721	1,956
Total liabilities	34,639	24,794
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred stock, $0.0001 par value: 10,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.0001 par value: 30,000,000 shares authorized; 2,042,493 and 2,024,979 shares issued and outstanding (net of treasury shares) at June 30, 2019 and December 31, 2018, respectively	2	2
Treasury stock, at cost; 258,849 shares at June 30, 2019 and December 31, 2018	(5,728)	(5,728)
Additional paid-in capital	145,706	145,428
Accumulated other comprehensive loss	0	(22)
Accumulated deficit	(116,768)	(113,880)
Total stockholders’ equity	23,212	25,800
Total liabilities and stockholders’ equity	$ 57,851	$ 50,594

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	2,042,493	2,024,979
Common stock, outstanding (in shares)	2,042,493	2,024,979
Treasury stock (in shares)	258,849	258,849

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating activities
Net (loss) income	$ (2,866)	$ 3,756
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	3,094	3,842
Amortization of intangible assets	566	727
Amortization of operating lease right-of-use assets	604
Provision for bad debt	109	82
Stock-based compensation	302	371
Goodwill impairment	0	476
Gain on disposal of discontinued operations	(350)	(6,261)
Amortization of loan issuance costs	28	21
Debt issuance costs write-off	151	43
Financing costs write-off	273	0
Loss (gain) on sale of assets	24	(238)
Deferred income taxes	(75)	120
Other, net	(23)	36
Changes in operating assets and liabilities:
Accounts receivable	(348)	3,219
Inventories	(290)	(463)
Other assets	(529)	339
Accounts payable	(694)	(73)
Accrued compensation	262	(1,385)
Deferred revenue	159	(844)
Operating lease liabilities	(625)
Other liabilities	596	(727)
Net cash provided by operating activities	368	3,041
Investing activities
Purchases of property and equipment	(1,446)	(919)
Purchase of real estate from related and third parties	(5,180)	0
Proceeds from sale of property and equipment	1,320	325
Purchases of equity securities	0	(14)
Proceeds from sales of equity securities	140	0
Proceeds from sale of discontinued operations	0	6,844
Payments to acquire interest in joint ventures	(1,000)	0
Net cash (used in) provided by investing activities	(6,166)	6,236
Financing activities
Proceeds from long-term borrowings	40,982	18,125
Repayment of long-term debt	(35,168)	(25,125)
Loan issuance costs	(404)	(7)
Dividends paid	0	(2,212)
Taxes paid related to net share settlement of equity awards	(24)	(74)
Repayment of obligations under finance leases	(369)	(450)
Net cash provided by (used in) financing activities	5,017	(9,743)
Net decrease in cash, cash equivalents, and restricted cash	(781)	(466)
Cash, cash equivalents, and restricted cash at beginning of period	1,813	2,220
Cash, cash equivalents, and restricted cash at end of period	$ 1,032	$ 1,754

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common stock	Treasury Stock	Additional paid-in capital	Accumulated other comprehensive income (loss)	Accumulated deficit
Beginning balance (in shares) at Dec. 31, 2017		2,006,000
Beginning balance at Dec. 31, 2017	$ 27,799	$ 2	$ (5,728)	$ 148,163	$ (5)	$ (114,633)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	200			200
Shares issued under stock incentive plans, net of shares withheld for employee taxes (in shares)		6,000
Shares issued under stock incentive plans, net of shares withheld for employee taxes	(69)			(69)
Dividends paid	(1,105)			(1,105)
Net (loss) income	4,106					4,106
Unrealized loss on securities available-for-sale	0				(17)	17
Ending balance (in shares) at Mar. 31, 2018		2,012,000
Ending balance at Mar. 31, 2018	30,931	$ 2	(5,728)	147,189	(22)	(110,510)
Beginning balance (in shares) at Dec. 31, 2017		2,006,000
Beginning balance at Dec. 31, 2017	27,799	$ 2	(5,728)	148,163	(5)	(114,633)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under stock incentive plans, net of shares withheld for employee taxes	74
Net (loss) income	3,756
Ending balance (in shares) at Jun. 30, 2018		2,012,000
Ending balance at Jun. 30, 2018	29,639	$ 2	(5,728)	146,247	(22)	(110,860)
Beginning balance (in shares) at Mar. 31, 2018		2,012,000
Beginning balance at Mar. 31, 2018	30,931	$ 2	(5,728)	147,189	(22)	(110,510)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	171			171
Shares issued under stock incentive plans, net of shares withheld for employee taxes	(6)			(6)
Dividends paid	(1,107)			(1,107)
Net (loss) income	(350)					(350)
Ending balance (in shares) at Jun. 30, 2018		2,012,000
Ending balance at Jun. 30, 2018	$ 29,639	$ 2	(5,728)	146,247	(22)	(110,860)
Beginning balance (in shares) at Dec. 31, 2018	2,024,979	2,025,000
Beginning balance at Dec. 31, 2018	$ 25,800	$ 2	(5,728)	145,428	(22)	(113,880)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	112			112
Shares issued under stock incentive plans, net of shares withheld for employee taxes (in shares)		6,000
Shares issued under stock incentive plans, net of shares withheld for employee taxes	(24)			(24)
Net (loss) income	(1,657)					(1,657)
Reclassification of tax provision impact	22				22
Ending balance (in shares) at Mar. 31, 2019		2,031,000
Ending balance at Mar. 31, 2019	$ 24,253	$ 2	(5,728)	145,516	0	(115,537)
Beginning balance (in shares) at Dec. 31, 2018	2,024,979	2,025,000
Beginning balance at Dec. 31, 2018	$ 25,800	$ 2	(5,728)	145,428	(22)	(113,880)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under stock incentive plans, net of shares withheld for employee taxes	24
Net (loss) income	$ (2,866)
Ending balance (in shares) at Jun. 30, 2019	2,042,493	2,042,000
Ending balance at Jun. 30, 2019	$ 23,212	$ 2	(5,728)	145,706	0	(116,768)
Beginning balance (in shares) at Mar. 31, 2019		2,031,000
Beginning balance at Mar. 31, 2019	24,253	$ 2	(5,728)	145,516	0	(115,537)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	190			190
Shares issued under stock incentive plans, net of shares withheld for employee taxes (in shares)		9,000
Shares issued under stock incentive plans, net of shares withheld for employee taxes	0
Shares issued for fractional shares in conjunction with reverse stock split (in shares)		2,000
Net (loss) income	(1,209)					(1,209)
Reclassification of tax provision impact	$ (22)					22
Ending balance (in shares) at Jun. 30, 2019	2,042,493	2,042,000
Ending balance at Jun. 30, 2019	$ 23,212	$ 2	$ (5,728)	$ 145,706	$ 0	$ (116,768)

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Basis of Presentation The unaudited condensed consolidated financial statements included in this Form 10-Q have been prepared in accordance with the U.S. Securities and Exchange Commission (“SEC”) instructions for Quarterly Reports on Form 10-Q. Accordingly, the condensed consolidated financial statements are unaudited and do not contain all the information required by U.S. generally accepted accounting principles (“GAAP”) to be included in a full set of financial statements. The unaudited condensed consolidated balance sheet at December 31, 2018 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by GAAP for a complete set of financial statements. The audited consolidated financial statements for our fiscal year ended December 31, 2018 , filed with the SEC on Form 10-K on March 1, 2019 , include a summary of our significant accounting policies and should be read in conjunction with this Form 10-Q. In the opinion of management, all material adjustments necessary to present fairly the results of operations, cash flows, and balance sheets for such periods have been included in this Form 10-Q. All such adjustments are of a normal recurring nature. The results of operations for interim periods are not necessarily indicative of the results of operations for the entire year. Discontinued Operations On February 1, 2018, the Company completed the sale of its customer contracts relating to the Medical Device Sales and Service (“MDSS”) post-warranty service business to Philips North America LLC (“Philips”) pursuant to an Asset Purchase Agreement, dated as of December 22, 2017 for $8.0 million . For all periods presented in our condensed consolidated statements of operations, all sales, costs, expenses, and income taxes attributable to MDSS, except as related to the impact of the decrease in the federal statutory tax rate (see Note 10 Income Taxes ), have been aggregated under the caption “earnings from discontinued operations, net of income taxes.” Cash flows used in or provided by MDSS operations as part of discontinued operations are disclosed in Note 2 Discontinued Operations . Unless otherwise noted, amounts and disclosures throughout these notes to condensed consolidated financial statements relate to our continuing operations. Sale of Telerhythmics, LLC On October 31, 2018, the Company entered into a membership interest purchase agreement (the “Telerhythmics Purchase Agreement”) with G Medical Innovations USA, Inc. (“G Medical”), pursuant to which we sold all the outstanding membership interests in Telerhythmics (“Telerhythmics”) to G Medical. The total consideration related to the Telerhythmics Purchase Agreement was $1.95 million in cash, which was paid at the closing on October 31, 2018. In connection with the transaction, the Company agreed to make partial monthly rent payments aggregating $0.2 million through January 2021. The Telerhythmics Purchase Agreement includes customary representations, warranties, covenants, and indemnification obligations of the parties, including a non-competition covenant by the Company. The gain on the sale of Telerhythmics, LLC was approximately $19 thousand . Reverse Stock Split On May 31, 2019, the Company filed a Certificate of Amendment to its Restated Certificate of Incorporation (the “Amendment”) in order to effect a reverse stock split of the issued and outstanding shares of its common stock at a ratio of 1-for- 10 (the “Reverse Stock Split”) and to reduce of the number of authorized shares of common stock to 30 million shares authorized (the “Share Reduction”). The Reverse Stock Split was implemented for the purpose of regaining compliance with the minimum bid price requirement for continued listing of the Company’s common stock on the Nasdaq Global Market. The Reverse Stock Split and the Share Reduction became effective on June 4, 2019, at which time (a) every ten shares of the Company’s issued and outstanding common stock were automatically combined into one issued and outstanding share of common stock and (b) the number of authorized shares of common stock under the Company’s Restated Certificate of Incorporation, as amended, was automatically reduced to 30 million shares authorized. No fractional shares were issued in connection with the Reverse Stock Split. Instead, the Company issued one full share of the post-Reverse Stock Split common stock to any stockholder who would have been entitled to receive a fractional share as a result of the Reverse Stock Split. The Amendment did not affect the par value of the Company’s common stock. The Company’s common stock began trading on a split-adjusted basis on June 5, 2019. The Amendment, effecting the Reverse Stock Split and the Share Reduction, was approved by the stockholders of the Company at the Company’s 2019 Annual Meeting of Stockholders held on May 1, 2019. In connection with approving the Reverse Stock Split, the Company’s stockholders granted authority to the Company’s board of directors to determine, at its discretion, a ratio within the range of 1-for-5 to 1-for-10, at which to effectuate the Reverse Stock Split. The Reverse Stock Split was approved by the Company’s board of directors on March 8, 2019, and the ratio of 1-for-10 was approved by the Company’s board of directors on May 15, 2019. The terms of equity awards under the Company’s incentive plans, including the per share exercise price of options and the number of shares issuable under outstanding awards, were converted on the effective date of the Reverse Stock Split in proportion to the reverse split ratio (subject to adjustment for fractional interests). In addition, the total number of shares of common stock that may be the subject of future grants under the Company’s incentive plans were adjusted and proportionately decreased as a result of the Reverse Stock Split. All authorized, issued, and outstanding stock and per share amounts contained in the accompanying condensed consolidated financial statements have been adjusted to reflect the 1-for-10 Reverse Stock Split for all prior periods presented. The Reverse Stock Split was effective June 4, 2019. Use of Estimates Preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the reported amounts of revenues and expenses. By their nature, estimates are subject to an inherent degree of uncertainty. Actual results could differ from management’s estimates. Leases Lessee Accounting We determine if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets, operating lease liabilities, and operating lease liabilities, net of current portion in our condensed consolidated balance sheets. Finance leases are included in property and equipment, other current liabilities, and other long-term liabilities in our condensed consolidated balance sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. We use the implicit discount rate when readily determinable; however, as most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives. Our lease valuation may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term. The Company elected to not separate lease and non-lease components of its operating leases in which it is the lessee and lessor. Additionally, The Company elected not to recognize right-of use assets and leases liabilities that arise from short-term leases of twelve months or less. Lessor Accounting We determine lease classification at the commencement date. Leases not classified as sales-type or direct financing leases are classified as operating leases. The primary accounting criteria we use for lease classification are (a) review to determine if the lease transfers ownership of the underlying asset to the lessee by the end of the lease term, (b) review to determine if the lease grants the lessee a purchase option that the lessee is reasonably certain to exercise, (c) determine, using a seventy-five percent or more threshold, if the lease term is for a major part of the remaining economic life of the underlying asset (however, we do not use this classification criterion when the lease commencement date falls within the last 25 percent of the total economic life of the underlying asset) and (d) determine, using a ninety percent or more threshold, if the present value of the sum of the lease payments and any residual value guarantees equal or exceeds substantially all of the fair value of the underlying asset. We do not lease equipment of such a specialized nature that it is expected to have no alternative use to the lessor at the end of the lease term. Each of the Company’s leases is classified as an operating lease. The Company elected the operating lease practical expedient for its leases to not separate non-lease components of regular maintenance services from associated lease components. This practical expedient is available when both of the following are met: (i) the timing and pattern of transfer of the non-lease components and associated lease component are the same and (ii) the lease component, if accounted for separately, would be classified as an operating lease. Property taxes paid by the lessor that are reimbursed by the lessee are considered to be lessor costs of owning the asset, and are recorded gross with revenue included in other non-interest income and expense recorded in operating expenses. The Company selected a lessor accounting policy election to exclude from revenue and expenses sales taxes and other similar taxes assessed by a governmental authority on lease revenue-producing transactions and collected by the lessor from a lessee. Operating lease equipment is carried at cost less accumulated depreciation. Operating lease equipment is depreciated to its estimated residual value using the straight-line method over the lease term or estimated useful life of the asset. Rental revenue on operating leases is recognized on a straight-line basis over the lease term unless collectibility is not probable. In these cases rental revenue is recognized as payments are received. Recently Adopted Accounting Standards In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which amended the existing accounting standards for the accounting for leases. Most significant among the changes in the standard is the recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases under current U.S. GAAP. Under the standard, disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Company adopted ASC 842 beginning January 1, 2019, using the modified-retrospective method, which will result in a cumulative effect adjustment to accumulated deficit at the beginning of 2019, rather than adjustments to the comparative prior periods presented in the financial statements. In connection with the adoption, the Company has elected to utilize the package of practical expedients, including: (1) not reassess the lease classification for any expired or existing leases, (2) not reassess the treatment of initial direct costs as they related to existing leases, and (3) not reassess whether expired or existing contracts are or contain leases. Upon adoption, the Company recorded right-of-use assets and lease liabilities on its condensed consolidated balance sheet of $3.8 million and $3.9 million , respectively, primarily related to real estate and vehicle leases. See Note 6 Leases for further detail. In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract , which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The Company early adopted ASU 2018-15 beginning January 1, 2019, and applied the guidance prospectively to the implementation costs incurred in its NetSuite ERP implementation. As of June 30, 2019 , the Company has capitalized $0.1 million of implementation costs.

Discontinued Operations

Discontinued Operations	6 Months Ended
	Jun. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations On February 1, 2018 , the Company completed the sale of its customer contracts relating to our MDSS post-warranty service business to Philips pursuant to an Asset Purchase Agreement, dated as of December 22, 2017, for $8.0 million . The total cash proceeds were adjusted for deferred revenue liabilities assigned to Philips at the closing date, as well as $0.5 million of proceeds held in escrow, subject to claims for breaches of general representation and warranties, which was recorded in other current assets at the date of sale. All claims were settled as of December 31, 2018 . Prior to the sale of the customer contracts, we received notification from Philips on September 28, 2017 , that our distribution agreement to sell Philips imaging systems on a commission basis would be terminated, effective December 31, 2017 . As a result, our product sales activities within our MDSS reportable segment were also discontinued effective in the first quarter of 2018 . For the six months ended June 30, 2019, Digirad recognized a $0.4 million gain for the remaining settlement of the warranty claims in regards to equipment sold to Phillips. The Company deemed the disposition of our MDSS reportable segment in the first quarter of 2018 to represent a strategic shift that will have a major effect on our operations and financial results, in accordance with the provisions of FASB authoritative guidance on the presentation of financial statements, we have classified the results of our MDSS segment as discontinued operations in our condensed consolidated statement of operations for all periods presented. The Company has allocated a portion of interest expense to discontinued operations since the proceeds received from the sale were required to be used to pay down outstanding borrowings under our previous revolving credit facility with Comerica Bank, a Texas banking association (“Comerica Bank”) under that certain Revolving Credit Agreement, dated June 21, 2017, by and between the Company and Comerica Bank (the “Comerica Credit Agreement”). The allocation was based on the ratio of proceeds received in the sale to total borrowings for the period. In addition, certain general and administrative costs related to corporate and shared service functions previously allocated to the MDSS reportable segment are not included in discontinued operations. The following table presents financial results of the MDSS business (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Total revenues $ — $ 165 $ — $ 789 Total cost of revenues — 30 — 546 Gross profit — 135 — 243 Operating expenses: Marketing and sales — — — 85 General and administrative — — — 172 Amortization of intangible assets — — — 13 Gain on sale of discontinued operations (350 ) — (350 ) (6,261 ) Total operating expenses (350 ) — (350 ) (5,991 ) Income from discontinued operations 350 135 350 6,234 Interest expense — — — (26 ) Income from discontinuing operations before income taxes 350 135 350 6,208 Income tax expense (84 ) (135 ) (84 ) (714 ) Income from discontinuing operations $ 266 $ — $ 266 $ 5,494 The following table presents supplemental cash flow information of discontinued operations (in thousands): Six Months Ended June 30, 2019 2018 Operating activities: Depreciation $ — $ 2 Amortization of intangible assets $ — $ 13 Gain on sale of discontinued operations $ (350 ) $ (6,261 ) Stock-based compensation $ — $ (1 ) Investing activities: Proceeds from the sale of discontinued operations $ — $ 6,844

Revenue

Revenue	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Product and Product-Related Revenues and Services Revenue Product and product-related revenue are generated from the sale of gamma cameras and post-warranty maintenance service contracts within our Diagnostic Imaging reportable segment. Services revenue are generated from providing diagnostic imaging services to customers within our Diagnostic Services and Mobile Healthcare reportable segments. Services revenue also includes lease income generated from interim rentals of imaging systems to our customers. Revenue Recognition Revenue is recognized when a customer obtains control of promised goods or services. The Company records the amount of revenue that reflects the consideration that it expects to receive in exchange for those goods or services. The Company applies the following five-step model in order to determine this amount: (i) identification of the promised goods or services in the contract; (ii) determination of whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations; and (v) recognition of revenue when (or as) the Company satisfies each performance obligation. Taxes collected from customers, which are subsequently remitted to governmental authorities, are excluded from revenue. The majority of our contracts have a single performance obligation as we provide a series of distinct services that are substantially the same and are transferred with the same pattern to the customer. For contracts with multiple performance obligations, we allocate the total transaction price to each performance obligation using our best estimate of the standalone selling price of each distinct good or service in the contract. We use an observable price to determine the stand-alone selling price for separate performance obligations or when an observable price is not available, we use a cost plus margin approach. Our products are generally not sold with a right of return and the Company does not provide significant credits or incentives, which may be required for as variable consideration when estimating the amount of revenue to be recognized. Disaggregation of Revenue The following tables present our revenues for the three and six months ended June 30, 2019 and 2018 , disaggregated by major source (in thousands): Three Months Ended June 30, 2019 Diagnostic Services Diagnostic Imaging Mobile Healthcare Total Major Goods/Service Lines Mobile Imaging $ 12,148 $ — $ 8,085 $ 20,233 Camera — 1,494 — 1,494 Camera Support — 1,555 — 1,555 Revenue from Contracts with Customers 12,148 3,049 8,085 23,282 Lease Income - Equipment 170 — 2,346 2,516 Total Revenues $ 12,318 $ 3,049 $ 10,431 $ 25,798 Timing of Revenue Recognition Services and goods transferred over time $ 12,318 $ 1,500 $ 10,268 $ 24,086 Services and goods transferred at a point in time — 1,549 163 1,712 Total Revenues $ 12,318 $ 3,049 $ 10,431 $ 25,798 Six Months Ended June 30, 2019 Diagnostic Services Diagnostic Imaging Mobile Healthcare Total Major Goods/Service Lines Mobile Imaging $ 23,733 $ — $ 15,579 $ 39,312 Camera — 2,298 — 2,298 Camera Support — 3,274 — 3,274 Revenue from Contracts with Customers 23,733 5,572 15,579 44,884 Lease Income - Equipment 311 — 4,515 4,826 Total Revenues $ 24,044 $ 5,572 $ 20,094 $ 49,710 Timing of Revenue Recognition Services and goods transferred over time $ 24,044 $ 3,051 $ 19,793 $ 46,888 Services and goods transferred at a point in time — 2,521 301 2,822 Total Revenues $ 24,044 $ 5,572 $ 20,094 $ 49,710 Three Months Ended June 30, 2018 Diagnostic Services Diagnostic Imaging Mobile Healthcare Total Major Goods/Service Lines Mobile Imaging $ 13,075 $ — $ 8,554 $ 21,629 Camera — 913 — 913 Camera Support — 1,809 — 1,809 Revenue from Contracts with Customers 13,075 2,722 8,554 24,351 Lease Income - Equipment 192 34 2,503 2,729 Total Revenues $ 13,267 $ 2,756 $ 11,057 $ 27,080 Timing of Revenue Recognition Services and goods transferred over time $ 12,123 $ 1,630 $ 10,986 $ 24,739 Services and goods transferred at a point in time 1,144 1,126 71 2,341 Total Revenues $ 13,267 $ 2,756 $ 11,057 $ 27,080 Six Months Ended June 30, 2018 Diagnostic Services Diagnostic Imaging Mobile Healthcare Total Major Goods/Service Lines Mobile Imaging $ 24,973 $ — $ 16,633 $ 41,606 Camera — 1,983 — 1,983 Camera Support — 3,553 — 3,553 Revenue from Contracts with Customers 24,973 5,536 16,633 47,142 Lease Income - Equipment 319 62 5,022 5,403 Total Revenues $ 25,292 $ 5,598 $ 21,655 $ 52,545 Timing of Revenue Recognition Services and goods transferred over time $ 23,087 $ 3,350 $ 21,477 $ 47,914 Services and goods transferred at a point in time 2,205 2,248 178 4,631 Total Revenues $ 25,292 $ 5,598 $ 21,655 $ 52,545 Nature of Goods and Services Mobile Imaging Within our Diagnostic Services and Mobile Healthcare reportable segments, our sales are derived from providing services and materials to our customers, primarily physician practices and hospitals, that allow them to perform diagnostic imaging services at their site. We typically bundle our services in providing staffing, our imaging systems, licensing, radiopharmaceuticals, and supplies depending on our customers’ needs. Our contracts with customers are typically entered into annually and are billed on a fixed rate per-day or per-scan basis, depending on terms of the contract. For the majority of these contracts, the Company has the right to invoice the customer in an amount that directly corresponds with the value to the customer of the Company’s performance to date. The Company uses the practical expedient to recognize revenue corresponding with amounts we have the right to invoice for services performed. Camera Within our Diagnostic Imaging segment, camera revenues are generated from the sale of internally developed solid-state gamma camera imaging systems. We recognize revenue upon transfer of control to the customer, which is generally upon delivery and acceptance. We also provide installation services and training on cameras we sell, primarily in the United States. Installation and initial training is generally performed shortly after delivery. The Company recognizes revenues for installation and training over time as the customer receives and consumes benefits provided as the Company performs the installation services. Our sale of imaging systems includes a one -year warranty that we account for as an assurance-type warranty. The expected costs associated with our standard warranties and field service actions continue to be recognized as expense when cameras are sold. Maintenance service contracts sold beyond the term of our standard warranties are accounted for as a service-type warranty and revenue is deferred and recognized ratably over the period of the obligation. Camera Support Within our Diagnostic Imaging segment, camera support revenue is derived from the sale of separately-priced extended maintenance contracts to camera owners, training, and the sale of parts to customers that do not have an extended warranty. Our separately priced service contracts range from 12 to 48 months . Service contracts are usually billed at the beginning of the contract period or at periodic intervals (e.g., monthly or quarterly) and revenue is recognized ratably over the term of the agreement. Services and training revenues are recognized in the period the services and training are performed. Revenue for sales of parts are recognized when the parts are delivered to the customer and control is transferred. Lease Income Within our real estate division under Star Real Estate Holdings USA, Inc. (“SRE”), we generate income from the lease of commercial properties and equipment. As an initial transaction to create our real estate division under SRE and launch that aspect of the Company’s conversion into a diversified holding company (the “HoldCo Conversion”), we purchased three plants in Maine that manufacture modular buildings and leased these three properties. Within primarily our Mobile Healthcare segment, we also generate income from interim rentals of our imaging systems to customers that are in the midst of new construction or refurbishing their current facilities. Rental contracts are structured as either a weekly or monthly payment arrangement and are accounted for as operating leases. Deferred Revenues We record deferred revenues when cash payments are received or due in advance of our performance, including amounts that are refundable. We have determined our contracts do not include a significant financing component. The majority of our deferred revenue relates to payments received on camera support post-warranty service contracts, which are billed at the beginning of the annual contract period or at periodic intervals (e.g., monthly or quarterly). Changes in the deferred revenues for six months ended June 30, 2019 , is as follows (in thousands): Balance at December 31, 2018 $ 1,713 Revenue recognized that was included in balance at beginning of the year (929 ) Deferred revenue, net, related to contracts entered into during the year 690 Balance at June 30, 2019 $ 1,474 Included in the balances above as of June 30, 2019 and December 31, 2018 is non-current deferred revenue included in other liabilities of $19 thousand and $26 thousand , respectively. The Company has elected to use the practical expedient under ASC 606 to exclude disclosures of unsatisfied remaining performance obligations for (i) contracts having an original expected length of one year or less or (ii) contracts for which the practical expedient has been applied to recognize revenue at the amount for which it has a right to invoice. Contract Costs We recognize an asset for the incremental costs of obtaining a contract with a customer if we expect the benefit of those costs to be longer than one year. The Company applies a practical expedient to expense costs as incurred for costs to obtain a contract when the amortization period would have been one year or less. These costs mainly include the Company’s internal sales commissions; under the terms of these programs these are generally earned and the costs are recognized at the time the revenue is recognized.

Basic and Diluted Net Income (L

Basic and Diluted Net Income (Loss) Per Share	6 Months Ended
	Jun. 30, 2019
Earnings Per Share, Basic and Diluted [Abstract]
Basic and Diluted Net Income (Loss) Per Share	Basic and Diluted Net Income (Loss) Per Share For the three and six months ended June 30, 2019 and 2018 , basic net income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the period. Diluted net income per common share is calculated to give effect to all dilutive securities, if applicable, using the treasury stock method. In periods for which there is a net loss, diluted loss per common share is equal to basic loss per common share, since the effect of including any common stock equivalents would be antidilutive. The following table sets forth the reconciliation of shares used to compute basic and diluted net (loss) income per share for the periods indicated (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Loss from continuing operations $ (1,475 ) $ (350 ) $ (3,132 ) $ (1,738 ) Income from discontinued operations 266 — 266 5,494 Net (loss) income $ (1,209 ) $ (350 ) $ (2,866 ) $ 3,756 Weighted-average shares outstanding—basic and diluted 2,038 2,012 2,034 2,011 (Loss) income per common share—basic and diluted Continuing operations $ (0.72 ) $ (0.17 ) $ (1.54 ) $ (0.86 ) Discontinued operations 0.13 — 0.13 2.73 Net (loss) income per common share—basic and diluted $ (0.59 ) $ (0.17 ) $ (1.41 ) $ 1.87 The computation of diluted earnings per share excludes stock options and stock units that are anti-dilutive. The following common stock equivalents were anti-dilutive (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Stock options 111 36 106 26 Restricted stock units 34 23 32 17 Total 145 59 138 43

Supplementary Balance Sheet Inf

Supplementary Balance Sheet Information	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Supplementary Balance Sheet Information	Supplementary Balance Sheet Information The components of inventories are as follows (in thousands): June 30, December 31, Raw materials $ 2,904 $ 2,419 Work-in-process 2,133 2,307 Finished goods 1,121 1,056 Total inventories 6,158 5,782 Less reserve for excess and obsolete inventories (377 ) (380 ) Total inventories, net $ 5,781 $ 5,402 Property and equipment consist of the following (in thousands): June 30, December 31, 2018 Land $ 604 $ 550 Buildings and leasehold improvements 5,445 1,989 Machinery and equipment 53,011 52,409 Computer hardware and software 4,471 4,490 Total property and equipment 63,531 59,438 Less accumulated depreciation (39,207 ) (37,793 ) Total property and equipment, net $ 24,324 $ 21,645 In April 2019, Digirad purchased three manufacturing facilities, including land, in Maine that manufacture modular buildings (two of which were purchased from KBS Builders, Inc., a wholly-owned subsidiary of ATRM (“KBS”) for $5.2 million and leased those three properties to KBS. Refer to lease income discussed in Note 3. Revenue.

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases	Leases Lessee We have operating and finance leases for corporate offices, vehicles, and certain equipment. Our leases have remaining lease terms of 1 year to 5 years , some of which include options to extend the leases and some of which include options to terminate the leases within 1 year . Operating leases are included separately in the condensed consolidated balance sheets and finance lease assets are included in property and equipment with the related liabilities included in other current liabilities and other liabilities in the condensed consolidated balance sheets. The components of lease expense are as follows (in thousands): Three Months Ended Six Months Ended June 30, 2019 Operating lease cost $ 391 $ 717 Finance lease cost: Amortization of finance lease assets $ 269 $ 322 Interest on finance lease liabilities 32 65 Total finance lease cost $ 301 $ 387 Supplemental cash flow information related to leases was as follows (in thousands): Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 625 Operating cash flows from finance leases $ 67 Financing cash flows from finance leases $ 369 Right-of-use assets obtained in exchange for lease obligations Operating leases $ 868 Finance leases $ 422 Supplemental balance sheet information related to leases was as follows (in thousands): June 30, Operating lease right-of-use assets, net $ 3,973 Operating lease liabilities $ 1,427 Operating lease liabilities, net of current 2,674 Total operating lease liabilities $ 4,101 Finance lease assets $ 3,978 Finance lease accumulated amortization (1,266 ) Finance lease assets, net $ 2,712 Finance lease liabilities $ 858 Finance lease liabilities, net of current 1,638 Total finance lease liabilities $ 2,496 Weighted-Average Remaining Lease Term (in years) Operating leases 3.2 Finance leases 2.9 Weighted-Average Discount Rate Operating leases 5.00 % Finance leases 6.00 % We are committed to making future cash payments on non-cancelable operating leases and finance leases (including interest). The future minimum lease payments due under both non-cancelable operating leases and finance leases having initial or remaining lease terms in excess of one year as of June 30, 2019 were as follows (in thousands): Operating Finance Leases 2019 (excludes the six-months ended June 30, 2019) $ 813 $ 498 2020 1,524 924 2021 1,144 895 2022 643 336 2023 299 54 Thereafter 21 — Total future minimum lease payments $ 4,444 $ 2,707 Less amounts representing interest 343 211 Present value of lease obligations $ 4,101 $ 2,496
Leases	Leases Lessee We have operating and finance leases for corporate offices, vehicles, and certain equipment. Our leases have remaining lease terms of 1 year to 5 years , some of which include options to extend the leases and some of which include options to terminate the leases within 1 year . Operating leases are included separately in the condensed consolidated balance sheets and finance lease assets are included in property and equipment with the related liabilities included in other current liabilities and other liabilities in the condensed consolidated balance sheets. The components of lease expense are as follows (in thousands): Three Months Ended Six Months Ended June 30, 2019 Operating lease cost $ 391 $ 717 Finance lease cost: Amortization of finance lease assets $ 269 $ 322 Interest on finance lease liabilities 32 65 Total finance lease cost $ 301 $ 387 Supplemental cash flow information related to leases was as follows (in thousands): Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 625 Operating cash flows from finance leases $ 67 Financing cash flows from finance leases $ 369 Right-of-use assets obtained in exchange for lease obligations Operating leases $ 868 Finance leases $ 422 Supplemental balance sheet information related to leases was as follows (in thousands): June 30, Operating lease right-of-use assets, net $ 3,973 Operating lease liabilities $ 1,427 Operating lease liabilities, net of current 2,674 Total operating lease liabilities $ 4,101 Finance lease assets $ 3,978 Finance lease accumulated amortization (1,266 ) Finance lease assets, net $ 2,712 Finance lease liabilities $ 858 Finance lease liabilities, net of current 1,638 Total finance lease liabilities $ 2,496 Weighted-Average Remaining Lease Term (in years) Operating leases 3.2 Finance leases 2.9 Weighted-Average Discount Rate Operating leases 5.00 % Finance leases 6.00 % We are committed to making future cash payments on non-cancelable operating leases and finance leases (including interest). The future minimum lease payments due under both non-cancelable operating leases and finance leases having initial or remaining lease terms in excess of one year as of June 30, 2019 were as follows (in thousands): Operating Finance Leases 2019 (excludes the six-months ended June 30, 2019) $ 813 $ 498 2020 1,524 924 2021 1,144 895 2022 643 336 2023 299 54 Thereafter 21 — Total future minimum lease payments $ 4,444 $ 2,707 Less amounts representing interest 343 211 Present value of lease obligations $ 4,101 $ 2,496

Financial Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Financial Instruments	Financial Instruments Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table presents information about our financial assets that are measured at fair value on a recurring basis, and indicates the fair value hierarchy of the valuation techniques we utilize to determine such fair value at June 30, 2019 and December 31, 2018 (in thousands). Fair Value as of June 30, 2019 Level 1 Level 2 Level 3 Total Equity securities $ 17 $ 25 $ — $ 42 Fair Value as of December 31, 2018 Level 1 Level 2 Level 3 Total Equity securities $ 153 $ 6 $ — $ 159 The investment in equity securities consists of common stock of publicly traded companies. The level 2 securities are included in other assets on the Company’s condensed consolidated balance sheet. The fair value of these securities is based on the closing prices observed on June 30, 2019 . During the six months ended June 30, 2019 the Company recorded in the condensed consolidated statement of operations an unrealized gain of $24 thousand and immaterial unrealized losses. During the year ended December 31, 2018 the Company recorded unrealized gains of $43 thousand and unrealized losses of $105 thousand . We did not reclassify any investments between levels in the fair value hierarchy during the six months ended June 30, 2019 . The fair values of the Company’s revolving credit facility approximate carrying value due to the variable rate nature of these borrowings.

Debt

Debt	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Debt	Debt A summary of long-term debt is as follows (in thousands): June 30, 2019 December 31, 2018 Amount Weighted-Average Interest Rate Amount Weighted-Average Interest Rate Revolving Credit Facility - SNB $ 15,314 4.90% $ — —% Revolving Credit Facility - Comerica $ — —% $ 9,500 4.87% On March 29, 2019, the Company entered into a Loan and Security Agreement (the “Loan Agreement”) by and among certain subsidiaries of the Company, as borrowers (collectively, the “Borrowers”); the Company, as guarantor; and Sterling National Bank, a national banking association, as lender (“SNB”). The Loan Agreement is a five -year credit facility maturing in March 2024, with a maximum credit amount of $20.0 million for both revolving loans and outstanding letter of credit obligations (the “SNB Credit Facility”). Under the SNB Credit Facility, Borrowers can request the issuance of letters of credit in an aggregate amount not to exceed $0.5 million at any one time outstanding. As of June 30, 2019 , the Company had $0.1 million of letters of credit outstanding and had additional borrowing capacity of $4.7 million . At the Borrowers’ option, the SNB Credit Facility will bear interest at either (i) a Floating LIBOR Rate, as defined in the Loan Agreement, plus a margin of 2.50% per annum; or (ii) a Fixed LIBOR Rate, as defined in the Loan Agreement, plus a margin of 2.25% per annum. The Company used a portion of the financing made available under the SNB Credit Facility to refinance and terminate, effective as of March 29, 2019, its previous credit facility under the Comerica Credit Agreement. The Loan Agreement includes certain representations, warranties of Borrowers, as well as events of default and certain affirmative and negative covenants by the Borrowers that are customary for loan agreements of this type. These covenants include restrictions on borrowings, investments and dispositions by Borrowers, as well as limitations on the Borrowers’ ability to make certain distributions. Upon the occurrence and during the continuation of an event of default under the Loan Agreement, SNB may, among other things, declare the loans and all other obligations under the Loan Agreement immediately due and payable and increase the interest rate at which loans and obligations under the Loan Agreement bear interest. The SNB Credit Facility is secured by a first-priority security interest in substantially all of the assets of the Company and the Borrowers and a pledge of all shares of the Borrowers. On March 29, 2019, in connection with the Company’s entry into the SNB Loan Agreement, Mr. Eberwein, the Chairman of the Company’s board of directors, entered into Limited Guaranty Agreement (the “Limited Guaranty”) with SNB pursuant to which he guaranteed to SNB the prompt performance of all the Borrowers’ obligations to SNB under the SNB Loan Agreement, including the full payment of all indebtedness owing by Borrowers to SNB under or in connection with the Loan Agreement and related SNB Credit Facility documents. Mr. Eberwein’s obligations under the Limited Guaranty are limited in the aggregate to the amount of (a) $1.5 million , plus (b) reasonable costs and expenses of SNB incurred in connection with the Limited Guaranty. Mr. Eberwein’s obligations under the Limited Guaranty terminate upon the Company and Borrowers achieving certain milestones set forth therein. In connection with the SNB Credit Facility, in the six months ended June 30, 2019 , the Company recognized a $0.2 million loss on extinguishment due to the write off of unamortized deferred financing costs associated with the Comerica Credit Agreement. At June 30, 2019 , the Company was in compliance with all covenants.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Other Matters In the normal course of business, we have been, and will likely continue to be, subject to litigation or administrative proceedings incidental to our business, such as claims related to customer disputes, employment practices, wage and hour disputes, product liability, professional liability, commercial disputes, licensure restrictions or denials, and warranty or patent infringement. Responding to litigation or administrative proceedings, regardless of whether they have merit, can be expensive and disruptive to normal business operations. We are not able to predict the timing or outcome of these matters.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We provide for income taxes under the asset and liability method. This approach requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of differences between the tax basis of assets or liabilities and their carrying amounts in the financial statements. We provide a valuation allowance for deferred tax assets if it is more likely than not that these items will expire before we are able to realize their benefit. We calculate the valuation allowance in accordance with the authoritative guidance relating to income taxes, which requires an assessment of both positive and negative evidence regarding the realizability of these deferred tax assets, when measuring the need for a valuation allowance. Significant judgment is required in determining any valuation allowance against deferred tax assets. As of December 31, 2017, as a result of a three-year cumulative loss and recent events, such as the unanticipated termination of the Philips distribution agreement and its effect on our forecasted income, we concluded that a full valuation allowance was necessary to offset our deferred tax assets. We continue to record a full valuation allowance against our deferred tax assets and intend to maintain a valuation allowance until sufficient positive evidence exists to support its reversal. Intraperiod tax allocation rules require us to allocate our provision for income taxes between continuing operations and other categories of comprehensive income, such as discontinued operations. In periods in which we have a year-to-date pre-tax loss from continuing operations and pre-tax income in other categories of comprehensive income, such as discontinued operations, we must consider that income in determining the amount of tax benefit that results from a loss in continuing operations and that shall be allocated to continuing operations. As a result of the intraperiod tax allocation rules, for the six months ended June 30, 2019 , the Company recorded an income tax benefit of $0.2 million and an income tax expense of $0.1 million within continuing operations and discontinued operations, respectively. For the six months ended June 30, 2018 , the Company recorded an income tax benefit of $0.6 million and $0.7 million of income tax expense within continuing operations and discontinued operations, respectively. As of June 30, 2019 , we had unrecognized tax benefits of approximately $3.6 million related to uncertain tax positions. Included in the unrecognized tax benefits were $3.2 million of tax benefits that, if recognized, would reduce our annual effective tax rate, subject to the valuation allowance. We file income tax returns in the U.S. and in various state jurisdictions with varying statutes of limitations. We are no longer subject to income tax examination by tax authorities for years prior to 2014; however, our net operating loss carryforwards and research credit carryforwards arising prior to that year are subject to adjustment. Our policy is to recognize interest expense and penalties related to income tax matters as a component of income tax expense.

Segments

Segments	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segments	Segments Our reporting segments have been determined based on the nature of the products and services offered to customers or the nature of their function in the organization. We evaluate performance based on the gross profit and operating income (loss). The Company does not identify or allocate its assets by operating segments. Segment information is as follows (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Revenue by segment: Diagnostic Services $ 12,318 $ 13,267 $ 24,044 $ 25,292 Diagnostic Imaging 3,049 2,756 5,572 5,598 Mobile Healthcare 10,431 11,057 20,094 21,655 Real Estate Holdings — — — — Consolidated revenue $ 25,798 $ 27,080 $ 49,710 $ 52,545 Gross profit by segment: Diagnostic Services $ 2,805 $ 2,969 $ 5,386 $ 5,216 Diagnostic Imaging 1,080 1,266 1,866 2,511 Mobile Healthcare 1,296 1,332 1,910 2,447 Real Estate Holdings (177 ) — (177 ) — Consolidated gross profit $ 5,004 $ 5,567 $ 8,985 $ 10,174 (Loss) income from operations by segment: Diagnostic Services $ 1,957 $ 1,096 $ 3,693 $ 2,089 Diagnostic Imaging 565 1,035 908 1,654 Mobile Healthcare 439 72 (184 ) 21 Real Estate Holdings (199 ) — (199 ) — Unallocated corporate and other expenses (2,908 ) (1,975 ) (5,499 ) (5,145 ) Segment (loss) income from operations (146 ) 228 (1,281 ) (1,381 ) Goodwill impairment — (476 ) — (476 ) Merger and finance costs $ (1,000 ) $ — $ (1,000 ) $ — Consolidated loss from operations $ (1,146 ) $ (248 ) $ (2,281 ) $ (1,857 ) Depreciation and amortization by segment: Diagnostic Services $ 305 $ 936 $ 609 $ 1,240 Diagnostic Imaging 73 74 151 152 Mobile Healthcare 1,438 1,750 2,865 3,177 Real Estate Holdings 35 — 35 — Total depreciation and amortization $ 1,851 $ 2,760 $ 3,660 $ 4,569 The Company formed a real estate segment through its Star Real Estate Holdings USA, Inc. (“SRE”) segment. SRE will hold significant real estate assets with the intent to create revenues through its leasing operations.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Perma-Fix Mr. John Climaco currently serves as a Director of the Company and a member of the Corporate Governance and Strategic Advisory committees of the Board. Until July 11, 2017, Mr. Climaco also served as a Director of Perma-Fix Environmental Services, Inc. (NASDAQ: PESI). Further, from June 2, 2015 until July 11, 2017, Mr. Climaco served as the Executive Vice President of Perma-Fix Medical S.A., a majority-owned Polish subsidiary of Perma-Fix Environmental Services, Inc. On July 27, 2015, we entered into a Stock Subscription Agreement (the “Subscription Agreement”) and Tc-99m Supplier Agreement (the “Supply Agreement”) with Perma-Fix Medical. Under the terms of the Subscription Agreement, we invested $1.0 million USD in exchange for 71,429 shares of Perma-Fix Medical. Pursuant to the Supply Agreement, should Perma-Fix Medical successfully complete development of the new Tc-99m resin, Perma-Fix Medical will supply us or our preferred nuclear pharmacy supplier with Tc-99m at a preferred rate and we will purchase agreed upon quantities of such Tc-99m for our nuclear imaging operations, either directly or in conjunction with our preferred nuclear pharmacy supplier. In addition, in connection with the Subscription Agreement, the Company’s President and CEO was appointed to the Supervisory Board of Perma-Fix Medical. The investment in Perma-Fix is included in other assets in the condensed consolidated balance sheets. Limited Guaranty On March 29, 2019, in connection with the Company’s entry into the Loan Agreement, Mr. Eberwein, the Chairman of the Company’s board of directors, entered into Limited Guaranty Agreement (the “Limited Guaranty”) with SNB pursuant to which he guaranteed to SNB the prompt performance of all the Borrowers’ obligations to SNB under the Loan Agreement, including the full payment of all indebtedness owing by Borrowers to SNB under or in connection with the Loan Agreement and related SNB Credit Facility documents. Mr. Eberwein’s obligations under the Limited Guaranty are limited in the aggregate to the amount of (a) $1.5 million , plus (b) reasonable costs and expenses of SNB incurred in connection with the Limited Guaranty. Mr. Eberwein’s obligations under the Limited Guaranty terminate upon the Company and Borrowers achieving certain milestones set forth therein. ATRM Jeffrey E. Eberwein, the Chairman of our board of directors and the Chairman of the board of directors of ATRM Holdings, Inc., (“ATRM”), owns approximately 2.7% of our outstanding common stock and approximately 17.4% of the outstanding common stock of ATRM. Mr. Eberwein is also the Chief Executive Officer of Lone Star Value Management, LLC, which is the investment manager of Lone Star Value Investors, LP (“LSVI”). LSVI owns 222,577 shares of ATRM’s 10.0% Series B Cumulative Preferred Stock (the “ATRM Preferred Stock”) and another 374,562 shares of ATRM Preferred Stock are owned directly by Lone Star Value Co-Invest I, LP (“LSV Co-Invest I”). Through these relationships and other relationships with affiliated entities, Mr. Eberwein may be deemed the beneficial owner of the securities owned by LSVI and LSV Co-Invest I. Mr. Eberwein disclaims beneficial ownership of ATRM Preferred Stock, except to the extent of his pecuniary interest therein. Financial Assistance On May 1, 2019, the special committee of the Company’s board of directors (the “Special Committee”) approved financial assistance by the Company to ATRM, in the form of advances or cash payments on behalf of ATRM, in order assist ATRM in becoming current with its financial statements and filings with the SEC. Under the terms of this approval, the Company was authorized to advance or spend up to an aggregate maximum amount of $0.4 million , with subsequent increments of $0.01 million subject to further approval by a designated member of the Special Committee. On July 30, 2019, the Special Committee increased the amount of financial assistance that the Company is authorized to provide to $0.8 million . The Company has entered into an agreement with ATRM pursuant to which ATRM has agreed to repay all financial assistance to ATRM if the proposed acquisition of ATRM was not consummated. As of June 30, 2019, the Company has made cash payments on behalf of ATRM of approximately $0.4 million . Joint Venture On December 14, 2018, Digirad and ATRM, entered into a joint venture and formed Star Procurement, LLC (“Star Procurement”), with Digirad and ATRM each holding a 50% interest. The purpose of the joint venture is to provide the service of purchasing and selling building materials and related goods to KBS with which Star Procurement entered into a Services Agreement on January 2, 2019. In accordance with the terms of the Star Procurement Limited Liability Company Agreement, Digirad made a $1.0 million capital contribution to the joint venture, which was made in January 2019. The investment in Star Procurement is included in other assets in the condensed consolidated balance sheets. Note Receivable On December 14, 2018, the Company received an unsecured promissory note from ATRM in the principal amount of $0.3 million (the “ATRM Note”) in exchange for a loan to ATRM in the same amount. The ATRM Note bears interest at 10% per annum for the first 12 months of its term, and at 12% per annum for the remaining 12 months. All unpaid principal and interest is due on December 14, 2020. ATRM may prepay the note at any time after a specified amount of advance notice to the Company. The ATRM Note provides for customary events of default, the occurrence of any of which may result in the principal and unpaid interest then outstanding becoming immediately due and payable. The ATRM Note is included in other assets in the condensed consolidated balance sheets. Acquisitions and Leases of Maine Facilities Through its SRE subsidiary the Company purchased from KBS Builders, Inc. (“KBS”), a wholly-owned subsidiary of ATRM, two plants in Maine that manufacture modular buildings and leased these properties back to KBS, as further described below. Waterford On April 3, 2019, 947 Waterford Road, LLC (“947 Waterford”), a wholly-owned subsidiary of SRE, entered into a Purchase and Sale Agreement (the “Waterford Purchase Agreement”) with KBS pursuant to which 947 Waterford closed on the purchase of certain real property and related improvements (including buildings) located in Waterford, Maine (the “Waterford Facility”) from KBS, and acquired the Waterford Facility. The purchase price of the Waterford Facility was $1.0 million , subject to adjustment for taxes and other charges and assessments. Paris On April 3, 2019, 300 Park Street, LLC (“300 Park”), a wholly-owned subsidiary of SRE, entered into a Purchase and Sale Agreement (the “Park Purchase Agreement”) with KBS, pursuant to which 300 Park closed on the purchase of certain real property and related improvements and personal property (including buildings, machinery and equipment) located in Paris, Maine (the “Park Facility”) from KBS, and acquired the Park Facility. The purchase price of the Park Facility was $2.9 million , subject to adjustment for taxes and other charges and assessments. Lease of Maine Facilities On April 3, 2019, KBS entered into a separate lease agreement with each of 947 Waterford (the “Waterford Lease”) and 300 Park (the “Park Lease”). The Waterford Lease has an initial term of 120 months , which is subject to extension. The base rental payments associated with the initial term under the Waterford Lease are estimated to be between $1.2 million and $1.3 million in the aggregate. The Park Lease has an initial term of 120 months , which is subject to extension. The base rental payments associated with the initial term under the Park Lease are estimated to be between $3.3 million and $3.6 million in the aggregate. ATRM has unconditionally guaranteed the performance of all obligations under the Waterford Lease and Park Lease to be performed by KBS under each lease, including, without limitation, the payment of all required rent. On March 27, 2019, 56 Mechanic Falls Road, LLC (“56 Mechanic”), a wholly-owned subsidiary of SRE, purchased from a third party certain property and equipment located in Oxford, Maine (the “Oxford Facility”). The transaction closed on April 25, 2019. The purchase price of the Oxford Facility was $1.2 million, subject to adjustment for taxes and other charges and assessments. On April 3rd and 18th of 2019, KBS signed a lease and an amendment, respectively, with 56 Mechanic (the “Oxford Lease”), which became effective upon the closing of the transaction. The initial term under the Oxford Lease will commence upon delivery of the Oxford Facility to KBS. The Oxford Lease has an initial term of 120 months , which is subject to extension. The base rental payments associated with the initial term under the Oxford Lease are estimated to be between $1.4 million and $1.5 million in the aggregate. ATRM has unconditionally guaranteed the performance of all obligations under the Oxford Lease to be performed by KBS, including, without limitation, the payment of all required rent.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Merger Agreement On July 3, 2019, the Company), Digirad Acquisition Corporation, a newly formed Minnesota corporation and wholly-owned subsidiary of the Company (“Merger Sub”), and ATRM Holdings, Inc., a Minnesota corporation (“ATRM”) entered into an Agreement and Plan of Merger (the “Merger Agreement”). The Merger Agreement provides for, among other things, a business combination whereby Merger Sub will merge with and into ATRM, with ATRM as the surviving entity (the “Merger”). As a result of the Merger, the separate corporate existence of Merger Sub will cease and ATRM will continue as the surviving corporation and a wholly-owned subsidiary of the Company. At the effective time of the Merger, (i) each share of ATRM common stock, par value $0.001 per share (“ATRM Common Stock”) issued and outstanding immediately prior to the effective time of the Merger will be converted into the right to receive three one-hundredths ( 0.03 ) of a share of 10.0% Series A Cumulative Perpetual Preferred Stock, par value $0.0001 per share, of the Company (“Company Preferred Stock”) and (ii) each share of ATRM Preferred Stock, issued and outstanding immediately prior to the effective time of the Merger will be converted into the right to receive two and one-half ( 2.5 ) shares of Company Preferred Stock. As set forth in the proposed Certificate of Designation for the Company Preferred Stock contemplated under the Merger Agreement, the terms of the Company Preferred Stock will include, among other things: (i) dividends will be cumulative from (but excluding) the date of issue, and will be payable quarterly in arrears, at a rate of 10.0% per annum per $10.00 of stated liquidation preference per share (or $1.00 per share of Company Preferred Stock per year); (ii) following the fifth anniversary of issuance, the Company may redeem (at its option, in whole or in part) the Company Preferred Stock at a cash redemption price of $10.00 per share, plus any accumulated and unpaid dividends; (iii) upon a Change of Control Triggering Event, as defined in the Certificate of Designation, holders of the Company Preferred Stock may require the Company to redeem the Company Preferred Stock at a price of $10.00 per share, plus any accumulated and unpaid dividends; (iv) the Company Preferred Stock will not be subject to any sinking fund and will not be convertible into or exchangeable for any of other securities; and (v) holders of the Company Preferred Stock generally will have no voting rights except for certain limited voting rights, including in circumstances where dividends payable on the outstanding Company Preferred Stock are in arrears for six or more consecutive quarterly dividend periods and to amend the terms of the Company Preferred Stock if it would materially and adversely alter the rights of holders of the Company Preferred Stock. The Company and ATRM have made customary representations, warranties and covenants in the Merger Agreement, including ATRM agreeing not to solicit alternative transactions or, subject to certain exceptions, to enter into discussions concerning, or provide confidential information in connection with, an alternative transaction. The Merger Agreement contains certain termination rights for both the Company and ATRM, and further provides that, upon termination of the Merger Agreement under certain circumstances, ATRM may be obligated to pay the Company a termination fee of up to $725,000 , as well as up to $225,000 of the Company’s expenses. The Merger is subject to various customary closing conditions, including, but not limited to, (i) approval by ATRM’s shareholders, (ii) the absence of any order, injunction, statute, rule, regulation or decree prohibiting, precluding, restraining, enjoining or making illegal the consummation of the Merger, (iii) the accuracy of the representations and warranties of each party, (iv) performance, in all material respects, of all obligations and compliance with, in all material respects, agreements and covenants to be performed or complied with by each party, (v) declaration of effectiveness of the Registration Statement on Form S-4 filed by the Company on July 19, 2019, and (vi) the completion of the Private Placement and the Issuance Option (each as defined below). Prior to the effective time of the Merger, the Company shall have completed a private placement of Company Preferred Stock for gross proceeds to the Company of no less than $3.0 million (the “Private Placement”). The net proceeds of the Private Placement, after the payment of any expenses incurred in connection with the negotiation and consummation of the Private Placement, will be applied toward the costs and expenses of the Merger, including the repayment of certain ATRM debt. In addition, prior to the effective time of the Merger, the Company shall have entered into an agreement with Jeffrey Eberwein, the Company’s Chairman of the Board, pursuant to which the Company shall have the right to require Mr. Eberwein to acquire 100,000 shares of Company Preferred Stock at a price of $10 per share for aggregate proceeds of $1,000,000 at any time, in the Company’s discretion, during the 12 calendar months following the effective time of the Merger (the “Issuance Option”). In addition, at the effective time of the Merger, each unvested share of restricted ATRM Common Stock or restricted ATRM Common Stock units that is outstanding under any ATRM stock plan shall be assumed by the Company and shall be converted automatically into a restricted share of Company Preferred Stock or restricted Company Preferred Stock units (as applicable), subject only to time-based vesting, and at an exchange ratio of three one-hundredths ( 0.03 ) of a share of Company Preferred Stock for each applicable share of ATRM Common Stock. Each share of restricted ATRM Common Stock or restricted ATRM Common Stock unit so adjusted shall otherwise be subject to the same terms and conditions which were applicable to the restricted ATRM Common Stock or restricted ATRM Common Stock unit under ATRM’s stock plans and the agreements evidencing grants thereunder, including as to vesting and settlement. Proxy/Prospectus Digirad and ATRM filed a proxy statement/prospectus as part of a registration statement on Form S-4 with the SEC on July 19, 2019, and filed an amended S-4/A on August 7, 2019, which was effective as of August 9, 2019. These filings constitute a prospectus of Digirad under Section 5 of the Securities Act of 1933, as amended, and the rules thereunder, with respect to the shares of Company Preferred Stock to be issued to ATRM shareholders in the Merger. In addition, these filings constitute a proxy statement under Section 14(a) of the Securities Exchange Act of 1934, as amended, and the rules thereunder, and a notice of meeting with respect to the special meeting of ATRM shareholders at which (a) holders of ATRM Common Stock and ATRM Preferred Stock will consider and vote upon the proposal to approve the Merger Agreement and the transactions contemplated thereby, including the Merger, (b) holders of ATRM Common Stock will consider and vote upon the proposal to approve, by an advisory vote, the change in control payments to ATRM’s President and Chief Executive Officer, and (c) holders of ATRM Common Stock will consider and vote upon the proposal to adjourn or postpone the ATRM special meeting, if necessary or appropriate, for, among other reasons, the solicitation of additional proxies.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The unaudited condensed consolidated financial statements included in this Form 10-Q have been prepared in accordance with the U.S. Securities and Exchange Commission (“SEC”) instructions for Quarterly Reports on Form 10-Q. Accordingly, the condensed consolidated financial statements are unaudited and do not contain all the information required by U.S. generally accepted accounting principles (“GAAP”) to be included in a full set of financial statements. The unaudited condensed consolidated balance sheet at December 31, 2018 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by GAAP for a complete set of financial statements. The audited consolidated financial statements for our fiscal year ended December 31, 2018 , filed with the SEC on Form 10-K on March 1, 2019 , include a summary of our significant accounting policies and should be read in conjunction with this Form 10-Q. In the opinion of management, all material adjustments necessary to present fairly the results of operations, cash flows, and balance sheets for such periods have been included in this Form 10-Q. All such adjustments are of a normal recurring nature. The results of operations for interim periods are not necessarily indicative of the results of operations for the entire year.
Discontinued Operations	Discontinued Operations On February 1, 2018, the Company completed the sale of its customer contracts relating to the Medical Device Sales and Service (“MDSS”) post-warranty service business to Philips North America LLC (“Philips”) pursuant to an Asset Purchase Agreement, dated as of December 22, 2017 for $8.0 million . For all periods presented in our condensed consolidated statements of operations, all sales, costs, expenses, and income taxes attributable to MDSS, except as related to the impact of the decrease in the federal statutory tax rate (see Note 10 Income Taxes ), have been aggregated under the caption “earnings from discontinued operations, net of income taxes.” Cash flows used in or provided by MDSS operations as part of discontinued operations are disclosed in Note 2 Discontinued Operations . Unless otherwise noted, amounts and disclosures throughout these notes to condensed consolidated financial statements relate to our continuing operations.
Use of Estimates	Use of Estimates Preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the reported amounts of revenues and expenses. By their nature, estimates are subject to an inherent degree of uncertainty. Actual results could differ from management’s estimates.
Leases - Lessee	Leases Lessee Accounting We determine if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets, operating lease liabilities, and operating lease liabilities, net of current portion in our condensed consolidated balance sheets. Finance leases are included in property and equipment, other current liabilities, and other long-term liabilities in our condensed consolidated balance sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. We use the implicit discount rate when readily determinable; however, as most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives. Our lease valuation may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term. The Company elected to not separate lease and non-lease components of its operating leases in which it is the lessee and lessor. Additionally, The Company elected not to recognize right-of use assets and leases liabilities that arise from short-term leases of twelve months or less.
Leases - Lessor	Lessor Accounting We determine lease classification at the commencement date. Leases not classified as sales-type or direct financing leases are classified as operating leases. The primary accounting criteria we use for lease classification are (a) review to determine if the lease transfers ownership of the underlying asset to the lessee by the end of the lease term, (b) review to determine if the lease grants the lessee a purchase option that the lessee is reasonably certain to exercise, (c) determine, using a seventy-five percent or more threshold, if the lease term is for a major part of the remaining economic life of the underlying asset (however, we do not use this classification criterion when the lease commencement date falls within the last 25 percent of the total economic life of the underlying asset) and (d) determine, using a ninety percent or more threshold, if the present value of the sum of the lease payments and any residual value guarantees equal or exceeds substantially all of the fair value of the underlying asset. We do not lease equipment of such a specialized nature that it is expected to have no alternative use to the lessor at the end of the lease term. Each of the Company’s leases is classified as an operating lease. The Company elected the operating lease practical expedient for its leases to not separate non-lease components of regular maintenance services from associated lease components. This practical expedient is available when both of the following are met: (i) the timing and pattern of transfer of the non-lease components and associated lease component are the same and (ii) the lease component, if accounted for separately, would be classified as an operating lease. Property taxes paid by the lessor that are reimbursed by the lessee are considered to be lessor costs of owning the asset, and are recorded gross with revenue included in other non-interest income and expense recorded in operating expenses. The Company selected a lessor accounting policy election to exclude from revenue and expenses sales taxes and other similar taxes assessed by a governmental authority on lease revenue-producing transactions and collected by the lessor from a lessee. Operating lease equipment is carried at cost less accumulated depreciation. Operating lease equipment is depreciated to its estimated residual value using the straight-line method over the lease term or estimated useful life of the asset. Rental revenue on operating leases is recognized on a straight-line basis over the lease term unless collectibility is not probable. In these cases rental revenue is recognized as payments are received.
Recently Adopted and Recently Issued Accounting Standards	Recently Adopted Accounting Standards In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which amended the existing accounting standards for the accounting for leases. Most significant among the changes in the standard is the recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases under current U.S. GAAP. Under the standard, disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Company adopted ASC 842 beginning January 1, 2019, using the modified-retrospective method, which will result in a cumulative effect adjustment to accumulated deficit at the beginning of 2019, rather than adjustments to the comparative prior periods presented in the financial statements. In connection with the adoption, the Company has elected to utilize the package of practical expedients, including: (1) not reassess the lease classification for any expired or existing leases, (2) not reassess the treatment of initial direct costs as they related to existing leases, and (3) not reassess whether expired or existing contracts are or contain leases. Upon adoption, the Company recorded right-of-use assets and lease liabilities on its condensed consolidated balance sheet of $3.8 million and $3.9 million , respectively, primarily related to real estate and vehicle leases. See Note 6 Leases for further detail. In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract , which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The Company early adopted ASU 2018-15 beginning January 1, 2019, and applied the guidance prospectively to the implementation costs incurred in its NetSuite ERP implementation. As of June 30, 2019 , the Company has capitalized $0.1 million of implementation costs.
Revenue	The Company has elected to use the practical expedient under ASC 606 to exclude disclosures of unsatisfied remaining performance obligations for (i) contracts having an original expected length of one year or less or (ii) contracts for which the practical expedient has been applied to recognize revenue at the amount for which it has a right to invoice. Contract Costs We recognize an asset for the incremental costs of obtaining a contract with a customer if we expect the benefit of those costs to be longer than one year. The Company applies a practical expedient to expense costs as incurred for costs to obtain a contract when the amortization period would have been one year or less. These costs mainly include the Company’s internal sales commissions; under the terms of these programs these are generally earned and the costs are recognized at the time the revenue is recognized. Product and Product-Related Revenues and Services Revenue Product and product-related revenue are generated from the sale of gamma cameras and post-warranty maintenance service contracts within our Diagnostic Imaging reportable segment. Services revenue are generated from providing diagnostic imaging services to customers within our Diagnostic Services and Mobile Healthcare reportable segments. Services revenue also includes lease income generated from interim rentals of imaging systems to our customers. Revenue Recognition Revenue is recognized when a customer obtains control of promised goods or services. The Company records the amount of revenue that reflects the consideration that it expects to receive in exchange for those goods or services. The Company applies the following five-step model in order to determine this amount: (i) identification of the promised goods or services in the contract; (ii) determination of whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations; and (v) recognition of revenue when (or as) the Company satisfies each performance obligation. Taxes collected from customers, which are subsequently remitted to governmental authorities, are excluded from revenue. The majority of our contracts have a single performance obligation as we provide a series of distinct services that are substantially the same and are transferred with the same pattern to the customer. For contracts with multiple performance obligations, we allocate the total transaction price to each performance obligation using our best estimate of the standalone selling price of each distinct good or service in the contract. We use an observable price to determine the stand-alone selling price for separate performance obligations or when an observable price is not available, we use a cost plus margin approach. Our products are generally not sold with a right of return and the Company does not provide significant credits or incentives, which may be required for as variable consideration when estimating the amount of revenue to be recognized. Nature of Goods and Services Mobile Imaging Within our Diagnostic Services and Mobile Healthcare reportable segments, our sales are derived from providing services and materials to our customers, primarily physician practices and hospitals, that allow them to perform diagnostic imaging services at their site. We typically bundle our services in providing staffing, our imaging systems, licensing, radiopharmaceuticals, and supplies depending on our customers’ needs. Our contracts with customers are typically entered into annually and are billed on a fixed rate per-day or per-scan basis, depending on terms of the contract. For the majority of these contracts, the Company has the right to invoice the customer in an amount that directly corresponds with the value to the customer of the Company’s performance to date. The Company uses the practical expedient to recognize revenue corresponding with amounts we have the right to invoice for services performed. Camera Within our Diagnostic Imaging segment, camera revenues are generated from the sale of internally developed solid-state gamma camera imaging systems. We recognize revenue upon transfer of control to the customer, which is generally upon delivery and acceptance. We also provide installation services and training on cameras we sell, primarily in the United States. Installation and initial training is generally performed shortly after delivery. The Company recognizes revenues for installation and training over time as the customer receives and consumes benefits provided as the Company performs the installation services. Our sale of imaging systems includes a one -year warranty that we account for as an assurance-type warranty. The expected costs associated with our standard warranties and field service actions continue to be recognized as expense when cameras are sold. Maintenance service contracts sold beyond the term of our standard warranties are accounted for as a service-type warranty and revenue is deferred and recognized ratably over the period of the obligation. Camera Support Within our Diagnostic Imaging segment, camera support revenue is derived from the sale of separately-priced extended maintenance contracts to camera owners, training, and the sale of parts to customers that do not have an extended warranty. Our separately priced service contracts range from 12 to 48 months . Service contracts are usually billed at the beginning of the contract period or at periodic intervals (e.g., monthly or quarterly) and revenue is recognized ratably over the term of the agreement. Services and training revenues are recognized in the period the services and training are performed. Revenue for sales of parts are recognized when the parts are delivered to the customer and control is transferred. Lease Income Within our real estate division under Star Real Estate Holdings USA, Inc. (“SRE”), we generate income from the lease of commercial properties and equipment. As an initial transaction to create our real estate division under SRE and launch that aspect of the Company’s conversion into a diversified holding company (the “HoldCo Conversion”), we purchased three plants in Maine that manufacture modular buildings and leased these three properties. Within primarily our Mobile Healthcare segment, we also generate income from interim rentals of our imaging systems to customers that are in the midst of new construction or refurbishing their current facilities. Rental contracts are structured as either a weekly or monthly payment arrangement and are accounted for as operating leases. Deferred Revenues We record deferred revenues when cash payments are received or due in advance of our performance, including amounts that are refundable. We have determined our contracts do not include a significant financing component. The majority of our deferred revenue relates to payments received on camera support post-warranty service contracts, which are billed at the beginning of the annual contract period or at periodic intervals (e.g., monthly or quarterly).

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations Information	The following table presents financial results of the MDSS business (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Total revenues $ — $ 165 $ — $ 789 Total cost of revenues — 30 — 546 Gross profit — 135 — 243 Operating expenses: Marketing and sales — — — 85 General and administrative — — — 172 Amortization of intangible assets — — — 13 Gain on sale of discontinued operations (350 ) — (350 ) (6,261 ) Total operating expenses (350 ) — (350 ) (5,991 ) Income from discontinued operations 350 135 350 6,234 Interest expense — — — (26 ) Income from discontinuing operations before income taxes 350 135 350 6,208 Income tax expense (84 ) (135 ) (84 ) (714 ) Income from discontinuing operations $ 266 $ — $ 266 $ 5,494 The following table presents supplemental cash flow information of discontinued operations (in thousands): Six Months Ended June 30, 2019 2018 Operating activities: Depreciation $ — $ 2 Amortization of intangible assets $ — $ 13 Gain on sale of discontinued operations $ (350 ) $ (6,261 ) Stock-based compensation $ — $ (1 ) Investing activities: Proceeds from the sale of discontinued operations $ — $ 6,844

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables present our revenues for the three and six months ended June 30, 2019 and 2018 , disaggregated by major source (in thousands): Three Months Ended June 30, 2019 Diagnostic Services Diagnostic Imaging Mobile Healthcare Total Major Goods/Service Lines Mobile Imaging $ 12,148 $ — $ 8,085 $ 20,233 Camera — 1,494 — 1,494 Camera Support — 1,555 — 1,555 Revenue from Contracts with Customers 12,148 3,049 8,085 23,282 Lease Income - Equipment 170 — 2,346 2,516 Total Revenues $ 12,318 $ 3,049 $ 10,431 $ 25,798 Timing of Revenue Recognition Services and goods transferred over time $ 12,318 $ 1,500 $ 10,268 $ 24,086 Services and goods transferred at a point in time — 1,549 163 1,712 Total Revenues $ 12,318 $ 3,049 $ 10,431 $ 25,798 Six Months Ended June 30, 2019 Diagnostic Services Diagnostic Imaging Mobile Healthcare Total Major Goods/Service Lines Mobile Imaging $ 23,733 $ — $ 15,579 $ 39,312 Camera — 2,298 — 2,298 Camera Support — 3,274 — 3,274 Revenue from Contracts with Customers 23,733 5,572 15,579 44,884 Lease Income - Equipment 311 — 4,515 4,826 Total Revenues $ 24,044 $ 5,572 $ 20,094 $ 49,710 Timing of Revenue Recognition Services and goods transferred over time $ 24,044 $ 3,051 $ 19,793 $ 46,888 Services and goods transferred at a point in time — 2,521 301 2,822 Total Revenues $ 24,044 $ 5,572 $ 20,094 $ 49,710 Three Months Ended June 30, 2018 Diagnostic Services Diagnostic Imaging Mobile Healthcare Total Major Goods/Service Lines Mobile Imaging $ 13,075 $ — $ 8,554 $ 21,629 Camera — 913 — 913 Camera Support — 1,809 — 1,809 Revenue from Contracts with Customers 13,075 2,722 8,554 24,351 Lease Income - Equipment 192 34 2,503 2,729 Total Revenues $ 13,267 $ 2,756 $ 11,057 $ 27,080 Timing of Revenue Recognition Services and goods transferred over time $ 12,123 $ 1,630 $ 10,986 $ 24,739 Services and goods transferred at a point in time 1,144 1,126 71 2,341 Total Revenues $ 13,267 $ 2,756 $ 11,057 $ 27,080 Six Months Ended June 30, 2018 Diagnostic Services Diagnostic Imaging Mobile Healthcare Total Major Goods/Service Lines Mobile Imaging $ 24,973 $ — $ 16,633 $ 41,606 Camera — 1,983 — 1,983 Camera Support — 3,553 — 3,553 Revenue from Contracts with Customers 24,973 5,536 16,633 47,142 Lease Income - Equipment 319 62 5,022 5,403 Total Revenues $ 25,292 $ 5,598 $ 21,655 $ 52,545 Timing of Revenue Recognition Services and goods transferred over time $ 23,087 $ 3,350 $ 21,477 $ 47,914 Services and goods transferred at a point in time 2,205 2,248 178 4,631 Total Revenues $ 25,292 $ 5,598 $ 21,655 $ 52,545
Changes in Deferred Revenue	Changes in the deferred revenues for six months ended June 30, 2019 , is as follows (in thousands): Balance at December 31, 2018 $ 1,713 Revenue recognized that was included in balance at beginning of the year (929 ) Deferred revenue, net, related to contracts entered into during the year 690 Balance at June 30, 2019 $ 1,474

Basic and Diluted Net Income _2

Basic and Diluted Net Income (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
Earnings Per Share, Basic and Diluted [Abstract]
Reconciliation of Shares Used to Compute Basic and Diluted Net Income (Loss) Per Share	The following table sets forth the reconciliation of shares used to compute basic and diluted net (loss) income per share for the periods indicated (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Loss from continuing operations $ (1,475 ) $ (350 ) $ (3,132 ) $ (1,738 ) Income from discontinued operations 266 — 266 5,494 Net (loss) income $ (1,209 ) $ (350 ) $ (2,866 ) $ 3,756 Weighted-average shares outstanding—basic and diluted 2,038 2,012 2,034 2,011 (Loss) income per common share—basic and diluted Continuing operations $ (0.72 ) $ (0.17 ) $ (1.54 ) $ (0.86 ) Discontinued operations 0.13 — 0.13 2.73 Net (loss) income per common share—basic and diluted $ (0.59 ) $ (0.17 ) $ (1.41 ) $ 1.87
Schedule of Antidilutive Securities Excluded from Computation of Net Income (Loss) Per Share	The computation of diluted earnings per share excludes stock options and stock units that are anti-dilutive. The following common stock equivalents were anti-dilutive (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Stock options 111 36 106 26 Restricted stock units 34 23 32 17 Total 145 59 138 43

Supplementary Balance Sheet I_2

Supplementary Balance Sheet Information (Tables)	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Schedule of Inventory	The components of inventories are as follows (in thousands): June 30, December 31, Raw materials $ 2,904 $ 2,419 Work-in-process 2,133 2,307 Finished goods 1,121 1,056 Total inventories 6,158 5,782 Less reserve for excess and obsolete inventories (377 ) (380 ) Total inventories, net $ 5,781 $ 5,402
Schedule of Property and Equipment	Property and equipment consist of the following (in thousands): June 30, December 31, 2018 Land $ 604 $ 550 Buildings and leasehold improvements 5,445 1,989 Machinery and equipment 53,011 52,409 Computer hardware and software 4,471 4,490 Total property and equipment 63,531 59,438 Less accumulated depreciation (39,207 ) (37,793 ) Total property and equipment, net $ 24,324 $ 21,645

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Schedule of Lease Cost and Other Information	The components of lease expense are as follows (in thousands): Three Months Ended Six Months Ended June 30, 2019 Operating lease cost $ 391 $ 717 Finance lease cost: Amortization of finance lease assets $ 269 $ 322 Interest on finance lease liabilities 32 65 Total finance lease cost $ 301 $ 387 Supplemental cash flow information related to leases was as follows (in thousands): Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 625 Operating cash flows from finance leases $ 67 Financing cash flows from finance leases $ 369 Right-of-use assets obtained in exchange for lease obligations Operating leases $ 868 Finance leases $ 422
Schedule of Balance Sheet Information	Supplemental balance sheet information related to leases was as follows (in thousands): June 30, Operating lease right-of-use assets, net $ 3,973 Operating lease liabilities $ 1,427 Operating lease liabilities, net of current 2,674 Total operating lease liabilities $ 4,101 Finance lease assets $ 3,978 Finance lease accumulated amortization (1,266 ) Finance lease assets, net $ 2,712 Finance lease liabilities $ 858 Finance lease liabilities, net of current 1,638 Total finance lease liabilities $ 2,496 Weighted-Average Remaining Lease Term (in years) Operating leases 3.2 Finance leases 2.9 Weighted-Average Discount Rate Operating leases 5.00 % Finance leases 6.00 %
Schedule of Future Minimum Finance Lease Payments	The future minimum lease payments due under both non-cancelable operating leases and finance leases having initial or remaining lease terms in excess of one year as of June 30, 2019 were as follows (in thousands): Operating Finance Leases 2019 (excludes the six-months ended June 30, 2019) $ 813 $ 498 2020 1,524 924 2021 1,144 895 2022 643 336 2023 299 54 Thereafter 21 — Total future minimum lease payments $ 4,444 $ 2,707 Less amounts representing interest 343 211 Present value of lease obligations $ 4,101 $ 2,496
Schedule of Future Minimum Operating Lease Payments, Lessee	The future minimum lease payments due under both non-cancelable operating leases and finance leases having initial or remaining lease terms in excess of one year as of June 30, 2019 were as follows (in thousands): Operating Finance Leases 2019 (excludes the six-months ended June 30, 2019) $ 813 $ 498 2020 1,524 924 2021 1,144 895 2022 643 336 2023 299 54 Thereafter 21 — Total future minimum lease payments $ 4,444 $ 2,707 Less amounts representing interest 343 211 Present value of lease obligations $ 4,101 $ 2,496

Financial Instruments (Tables)

Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Financial Assets Measured at Fair Value on a Recurring Basis	The following table presents information about our financial assets that are measured at fair value on a recurring basis, and indicates the fair value hierarchy of the valuation techniques we utilize to determine such fair value at June 30, 2019 and December 31, 2018 (in thousands). Fair Value as of June 30, 2019 Level 1 Level 2 Level 3 Total Equity securities $ 17 $ 25 $ — $ 42 Fair Value as of December 31, 2018 Level 1 Level 2 Level 3 Total Equity securities $ 153 $ 6 $ — $ 159

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Summary of Long-Term Debt	A summary of long-term debt is as follows (in thousands): June 30, 2019 December 31, 2018 Amount Weighted-Average Interest Rate Amount Weighted-Average Interest Rate Revolving Credit Facility - SNB $ 15,314 4.90% $ — —% Revolving Credit Facility - Comerica $ — —% $ 9,500 4.87%

Segments (Tables)

Segments (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Segment information is as follows (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Revenue by segment: Diagnostic Services $ 12,318 $ 13,267 $ 24,044 $ 25,292 Diagnostic Imaging 3,049 2,756 5,572 5,598 Mobile Healthcare 10,431 11,057 20,094 21,655 Real Estate Holdings — — — — Consolidated revenue $ 25,798 $ 27,080 $ 49,710 $ 52,545 Gross profit by segment: Diagnostic Services $ 2,805 $ 2,969 $ 5,386 $ 5,216 Diagnostic Imaging 1,080 1,266 1,866 2,511 Mobile Healthcare 1,296 1,332 1,910 2,447 Real Estate Holdings (177 ) — (177 ) — Consolidated gross profit $ 5,004 $ 5,567 $ 8,985 $ 10,174 (Loss) income from operations by segment: Diagnostic Services $ 1,957 $ 1,096 $ 3,693 $ 2,089 Diagnostic Imaging 565 1,035 908 1,654 Mobile Healthcare 439 72 (184 ) 21 Real Estate Holdings (199 ) — (199 ) — Unallocated corporate and other expenses (2,908 ) (1,975 ) (5,499 ) (5,145 ) Segment (loss) income from operations (146 ) 228 (1,281 ) (1,381 ) Goodwill impairment — (476 ) — (476 ) Merger and finance costs $ (1,000 ) $ — $ (1,000 ) $ — Consolidated loss from operations $ (1,146 ) $ (248 ) $ (2,281 ) $ (1,857 ) Depreciation and amortization by segment: Diagnostic Services $ 305 $ 936 $ 609 $ 1,240 Diagnostic Imaging 73 74 151 152 Mobile Healthcare 1,438 1,750 2,865 3,177 Real Estate Holdings 35 — 35 — Total depreciation and amortization $ 1,851 $ 2,760 $ 3,660 $ 4,569

Basis of Presentation - Narrati

Basis of Presentation - Narrative (Details) $ in Thousands	May 31, 2019shares	Oct. 31, 2018USD ($)	Jun. 30, 2019USD ($)shares	Dec. 31, 2018USD ($)shares	Jan. 01, 2019USD ($)	Feb. 01, 2018USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reverse stock split	0.1
Lease, right-of-use asset					$ 3,800
Lease, liability					$ 3,900
Capitalized implementation costs			$ 100
Common stock shares authorized after reversed stock split (in shares) | shares	30,000,000		30,000,000	30,000,000
Telerhythmics
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Consideration received		$ 1,950
Total rent payments		$ 200
Gain on sale of Telerhythmics				$ 19
Discontinued operations, disposed of by sale | MDSS post-warranty service business
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Consideration received						$ 8,000

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details) - MDSS post-warranty service business - Discontinued operations, disposed of by sale - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Feb. 01, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received					$ 8,000
Held in escrow					$ 500
Gain on sale of discontinued operations	$ 350	$ 0	$ 350	$ 6,261

Discontinued Operations - Finan

Discontinued Operations - Financial Results (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating expenses:
Income from discontinuing operations	$ 266	$ 0	$ 266	$ 5,494
MDSS post-warranty service business | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenues	0	165	0	789
Total cost of revenues	0	30	0	546
Gross profit	0	135	0	243
Operating expenses:
Marketing and sales	0	0	0	85
General and administrative	0	0	0	172
Amortization of intangible assets	0	0	0	13
Gain on sale of discontinued operations	(350)	0	(350)	(6,261)
Total operating expenses	(350)	0	(350)	(5,991)
Income from discontinued operations	350	135	350	6,234
Interest expense	0	0	0	(26)
Income from discontinuing operations before income taxes	350	135	350	6,208
Income tax expense	(84)	(135)	(84)	(714)
Income from discontinuing operations	$ 266	$ 0	$ 266	$ 5,494

Discontinued Operations - Suppl

Discontinued Operations - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Investing activities
Proceeds from sale of discontinued operations			$ 0	$ 6,844
MDSS post-warranty service business | Discontinued operations, disposed of by sale
Operating activities
Depreciation			0	2
Amortization of intangible assets	$ 0	$ 0	0	13
Gain on sale of discontinued operations	$ (350)	$ 0	(350)	(6,261)
Stock-based compensation			0	(1)
Investing activities
Proceeds from sale of discontinued operations			$ 0	$ 6,844

Revenue - Disaggregation of Rev

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	$ 23,282	$ 24,351	$ 44,884	$ 47,142
Lease Income - Equipment	2,516	2,729	4,826	5,403
Total revenues	25,798	27,080	49,710	52,545
Services and goods transferred over time
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	24,086	24,739	46,888	47,914
Services and goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,712	2,341	2,822	4,631
Mobile Imaging
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	20,233	21,629	39,312	41,606
Camera
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,494	913	2,298	1,983
Camera Support
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,555	1,809	3,274	3,553
Diagnostic Services
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	12,148	13,075	23,733	24,973
Lease Income - Equipment	170	192	311	319
Total revenues	12,318	13,267	24,044	25,292
Diagnostic Services | Services and goods transferred over time
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	12,318	12,123	24,044	23,087
Diagnostic Services | Services and goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	1,144	0	2,205
Diagnostic Services | Mobile Imaging
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	12,148	13,075	23,733	24,973
Diagnostic Services | Camera
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Diagnostic Services | Camera Support
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Diagnostic Imaging
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	3,049	2,722	5,572	5,536
Lease Income - Equipment	0	34	0	62
Total revenues	3,049	2,756	5,572	5,598
Diagnostic Imaging | Services and goods transferred over time
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,500	1,630	3,051	3,350
Diagnostic Imaging | Services and goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,549	1,126	2,521	2,248
Diagnostic Imaging | Mobile Imaging
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Diagnostic Imaging | Camera
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,494	913	2,298	1,983
Diagnostic Imaging | Camera Support
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,555	1,809	3,274	3,553
Mobile Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,085	8,554	15,579	16,633
Lease Income - Equipment	2,346	2,503	4,515	5,022
Total revenues	10,431	11,057	20,094	21,655
Mobile Healthcare | Services and goods transferred over time
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	10,268	10,986	19,793	21,477
Mobile Healthcare | Services and goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	163	71	301	178
Mobile Healthcare | Mobile Imaging
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,085	8,554	15,579	16,633
Mobile Healthcare | Camera
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Mobile Healthcare | Camera Support
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	$ 0	$ 0	$ 0	$ 0

Revenue - Narrative (Details)

Revenue - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Non-current deferred revenue	$ 19	$ 26
Camera
Disaggregation of Revenue [Line Items]
Warranty term	1 year
Diagnostic Imaging | Camera Support | Minimum
Disaggregation of Revenue [Line Items]
Service contract term	12 months
Diagnostic Imaging | Camera Support | Maximum
Disaggregation of Revenue [Line Items]
Service contract term	48 months

Revenue - Schedule of Changes i

Revenue - Schedule of Changes in Deferred Revenue (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Change In Contract With Customer, Liability [Roll Forward]
Balance at December 31, 2018	$ 1,713
Revenue recognized that was included in balance at beginning of the year	(929)
Deferred revenue, net, related to contracts entered into during the year	690
Balance at June 30, 2019	$ 1,474

Basic and Diluted Net Income _3

Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Loss from continuing operations	$ (1,475)		$ (350)		$ (3,132)	$ (1,738)
Income from discontinued operations	266		0		266	5,494
Net (loss) income	$ (1,209)	$ (1,657)	$ (350)	$ 4,106	$ (2,866)	$ 3,756
Denominator:
Weighted average shares outstanding – basic and diluted (in shares)	2,038		2,012		2,034	2,011
Continuing operations (in usd per share)	$ (0.72)		$ (0.17)		$ (1.54)	$ (0.86)
Discontinued operations (in usd per share)	0.13		0		0.13	2.73
Net (loss) income per share—basic and diluted (in usd per share)	$ (0.59)		$ (0.17)		$ (1.41)	$ 1.87
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	145		59		138	43
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	111		36		106	26
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	34		23		32	17

Supplementary Balance Sheet I_3

Supplementary Balance Sheet Information - Schedule of Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Raw materials	$ 2,904	$ 2,419
Work-in-process	2,133	2,307
Finished goods	1,121	1,056
Total inventories	6,158	5,782
Less reserve for excess and obsolete inventories	(377)	(380)
Total inventories, net	$ 5,781	$ 5,402

Supplementary Balance Sheet I_4

Supplementary Balance Sheet Information - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, and equipment, gross	$ 63,531	$ 59,438
Less accumulated depreciation	(39,207)	(37,793)
Total property and equipment, net	24,324	21,645
Land
Property, Plant and Equipment [Line Items]
Property, and equipment, gross	604	550
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, and equipment, gross	5,445	1,989
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, and equipment, gross	53,011	52,409
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property, and equipment, gross	$ 4,471	$ 4,490

Supplementary Balance Sheet I_5

Supplementary Balance Sheet Information - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
	Apr. 30, 2019	Jun. 30, 2019	Jun. 30, 2018
Inventory Disclosure [Abstract]
Purchase of plants	$ 5,200	$ 1,446	$ 919

Leases - Narrative (Details)

Leases - Narrative (Details)	6 Months Ended
	Jun. 30, 2019
Lessee, Lease, Description [Line Items]
Option to terminate period	1 year
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	5 years

Leases - Schedule of Lease Expe

Leases - Schedule of Lease Expenses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Operating lease cost	$ 391	$ 717
Amortization of finance lease assets	269	322
Interest on finance lease liabilities	32	65
Total finance lease cost	$ 301	$ 387

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 625
Operating cash flows from finance leases	67
Financing cash flows from finance leases	369
Right-of-use assets obtained in exchange for lease obligations, operating lease	868
Right-of-use assets obtained in exchange for lease obligations, finance leases	$ 422

Leases - Schedule of Suppleme_2

Leases - Schedule of Supplemental Balance Sheet Information (Details) $ in Thousands	Jun. 30, 2019USD ($)
Leases [Abstract]
Operating lease right-of-use assets, net	$ 3,973
Operating lease liabilities	1,427
Operating lease liabilities, net of current portion	2,674
Total operating lease liabilities	4,101
Finance lease assets	3,978
Finance lease accumulated amortization	(1,266)
Finance lease assets, net	2,712
Finance lease liabilities	858
Finance lease liabilities, net of current	1,638
Total finance lease liabilities	$ 2,496
Operating lease, weighted-Average Remaining Lease Term (in years)	3 years 2 months 12 days
Financing leases, weighted-Average Remaining Lease Term (in years)	2 years 10 months 24 days
Operating leases, weighted-Average Discount Rate	5.00%
Financing leases, weighted-Average Discount Rate	6.00%

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments, Lessee (Details) $ in Thousands	Jun. 30, 2019USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2019 (excludes the six-months ended June 30, 2019)	$ 813
2020	1,524
2021	1,144
2022	643
2023	299
Thereafter	21
Total future minimum lease payments	4,444
Less amounts representing interest	343
Present value of lease obligations	4,101
Finance Lease, Liability, Payment, Due [Abstract]
2019 (excludes the six-months ended June 30, 2019)	498
2020	924
2021	895
2022	336
2023	54
Thereafter	0
Total future minimum lease payments	2,707
Less amounts representing interest	211
Present value of lease obligations	$ 2,496

Financial Instruments - Financi

Financial Instruments - Financial Assets Measured at Fair Value on a Recurring Basis (Details) - Equity securities - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 42	$ 159
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	17	153
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	25	6
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0	$ 0

Financial Instruments - Narrati

Financial Instruments - Narrative (Details) - Equity securities - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Unrealized gain	$ 24	$ 43
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax		$ 105

Debt - Schedule of Debt (Detail

Debt - Schedule of Debt (Details) - Line of Credit - Revolving Credit Facility - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Credit Facility Due March 2024
Debt Instrument [Line Items]
Amount	$ 15,314	$ 0
Weighted-Average Interest Rate	4.90%	0.00%
Credit Facility Due June 2022
Debt Instrument [Line Items]
Amount	$ 0	$ 9,500
Weighted-Average Interest Rate	0.00%	4.87%

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($)	Mar. 29, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Line of Credit Facility [Line Items]
Debt issuance costs write-off		$ 0	$ 0	$ 151,000	$ 43,000
Line of Credit | Credit Facility Due March 2024 | SNB | Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt term	5 years
Maximum borrowing capacity	$ 20,000,000
Letters of credit (not to exceed)	$ 500,000
Borrowing availability		4,700,000		4,700,000
Line of Credit | Credit Facility Due March 2024 | London Interbank Offered Rate (LIBOR) | SNB | Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread	2.50%
Additional margin rate	2.25%
Letter of Credit | SNB | Revolving Credit Facility
Line of Credit Facility [Line Items]
Letters of credit (not to exceed)		$ 100,000		$ 100,000
Board of Directors Chairman
Line of Credit Facility [Line Items]
Obligations under the Limited Guaranty	$ 1,500,000

Income Tax (Details)

Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax benefit, continued operations	$ 162	$ 106	$ 170	$ 561
Unrecognized tax benefits	3,600		3,600
Unrecognized tax benefits that would impact effective tax rate	3,200		3,200
MDSS post-warranty service business | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax expense, discontinued operations	$ 84	$ 135	$ 84	$ 714

Segments (Details)

Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Consolidated revenue	$ 25,798	$ 27,080	$ 49,710	$ 52,545
Consolidated gross profit	5,004	5,567	8,985	10,174
(Loss) income from operations by segment	(1,146)	(248)	(2,281)	(1,857)
Segment (loss) income from operations	(146)	228	(1,281)	(1,381)
Goodwill impairment	0	(476)	0	(476)
Merger and finance costs	(1,000)	0	(1,000)	0
Total depreciation and amortization	1,851	2,760	3,660	4,569
Diagnostic Services
Segment Reporting Information [Line Items]
Consolidated revenue	12,318	13,267	24,044	25,292
Consolidated gross profit	2,805	2,969	5,386	5,216
(Loss) income from operations by segment	1,957	1,096	3,693	2,089
Total depreciation and amortization	305	936	609	1,240
Diagnostic Imaging
Segment Reporting Information [Line Items]
Consolidated revenue	3,049	2,756	5,572	5,598
Consolidated gross profit	1,080	1,266	1,866	2,511
(Loss) income from operations by segment	565	1,035	908	1,654
Total depreciation and amortization	73	74	151	152
Mobile Healthcare
Segment Reporting Information [Line Items]
Consolidated revenue	10,431	11,057	20,094	21,655
Consolidated gross profit	1,296	1,332	1,910	2,447
(Loss) income from operations by segment	439	72	(184)	21
Total depreciation and amortization	1,438	1,750	2,865	3,177
Real Estate Holdings
Segment Reporting Information [Line Items]
Consolidated revenue	0	0	0	0
Consolidated gross profit	(177)	0	(177)	0
(Loss) income from operations by segment	(199)	0	(199)	0
Total depreciation and amortization	35	0	35	0
Unallocated corporate and other expenses
Segment Reporting Information [Line Items]
(Loss) income from operations by segment	$ (2,908)	$ (1,975)	$ (5,499)	$ (5,145)

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($)	Jul. 30, 2019	Jul. 03, 2019	May 01, 2019	Apr. 03, 2019	Mar. 27, 2019	Dec. 14, 2018	Jul. 27, 2015	Jun. 30, 2019	Mar. 29, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Investment made as part of Subscription Agreement							$ 1,000,000
Shares acquired (in shares)							71,429
Shares owned								2,042,493		2,024,979
Board of Directors Chairman
Related Party Transaction [Line Items]
Obligations under the Limited Guaranty									$ 1,500,000
Digirad Corp | Board of Directors Chairman
Related Party Transaction [Line Items]
Percentage of outstanding shares								2.70%
ATRM Holdings, Inc. | Board of Directors Chairman
Related Party Transaction [Line Items]
Percentage of outstanding shares								17.40%
Series B Preferred Stock | Lone Star Value Co-Invest I, LP | ATRM Holdings, Inc.
Related Party Transaction [Line Items]
Shares owned								374,562
Series B Preferred Stock | Lone Star Value Investors, LP | ATRM Holdings, Inc.
Related Party Transaction [Line Items]
Shares owned								222,577
Series B Preferred Stock | ATRM Holdings, Inc.
Related Party Transaction [Line Items]
Preferred stock, dividend rate percentage								10.00%
Star Procurement, LLC
Related Party Transaction [Line Items]
Joint venture interest						50.00%
Capital contribution						$ 1,000,000
ATRM Holdings, Inc. | Affiliated Entity
Related Party Transaction [Line Items]
Aggregate maximum amount to ATRM			$ 400,000
Subsequent incremental payments to ATRM			$ 10,000
Cash payments								$ 400,000
Waterford Lease
Related Party Transaction [Line Items]
Purchase price				$ 1,000,000
Lease period				120 months
Waterford Lease | Minimum
Related Party Transaction [Line Items]
Base rent payments				$ 1,200,000
Waterford Lease | Maximum
Related Party Transaction [Line Items]
Base rent payments				1,300,000
Park Lease
Related Party Transaction [Line Items]
Purchase price				$ 2,900,000
Lease period				120 months
Park Lease | Minimum
Related Party Transaction [Line Items]
Base rent payments				$ 3,300,000
Park Lease | Maximum
Related Party Transaction [Line Items]
Base rent payments				$ 3,600,000
Oxford Lease
Related Party Transaction [Line Items]
Lease period					120 months
Oxford Lease | Minimum
Related Party Transaction [Line Items]
Base rent payments					$ 1,400,000
Oxford Lease | Maximum
Related Party Transaction [Line Items]
Base rent payments					$ 1,500,000
Subsequent Event
Related Party Transaction [Line Items]
Preferred stock, dividend rate percentage		10.00%
Subsequent Event | ATRM Holdings, Inc. | Affiliated Entity
Related Party Transaction [Line Items]
Aggregate maximum amount to ATRM	$ 800,000
Notes Payable, Other Payables | ATRM Unsecured Promissory Note, Issued December 14, 2018
Related Party Transaction [Line Items]
Promissory note						$ 300,000
Notes Payable, Other Payables | ATRM Unsecured Promissory Note, Issued December 14, 2018 | Minimum
Related Party Transaction [Line Items]
Interest rate						10.00%
Notes Payable, Other Payables | ATRM Unsecured Promissory Note, Issued December 14, 2018 | Maximum
Related Party Transaction [Line Items]
Interest rate						12.00%

Subsequent Events (Details)

Subsequent Events (Details)	Jul. 03, 2019USD ($)$ / sharesshares	Jun. 30, 2019$ / shares	Dec. 31, 2018$ / shares
Subsequent Event [Line Items]
Common stock, par value (in usd per share)		$ 0.0001	$ 0.0001
Preferred stock, par value (in usd per share)		$ 0.0001	$ 0.0001
Subsequent Event
Subsequent Event [Line Items]
Preferred stock, dividend rate percentage	10.00%
Liquidation preference per share	$ 10
Termination fee | $	$ 725,000
Company expenses due to termination | $	225,000
Gross proceeds from private placement | $	$ 3,000,000
ATRM Holdings, Inc. | Subsequent Event
Subsequent Event [Line Items]
Common stock, par value (in usd per share)	$ 0.001
Series A Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Digirad shares issued per ATRM share (in shares)	0.03
Preferred stock, dividend rate percentage	10.00%
Preferred stock, par value (in usd per share)	$ 0
Preferred Stock | Digirad Corp | Subsequent Event
Subsequent Event [Line Items]
Digirad shares issued per ATRM share (in shares)	2.5
Restricted Stock | Digirad Corp | Subsequent Event
Subsequent Event [Line Items]
Digirad shares issued per ATRM share (in shares)	0.03
Following Fifth Anniversary of Issuance | Subsequent Event
Subsequent Event [Line Items]
Cash redemption price	$ 10
Change of Control Triggering Event | Subsequent Event
Subsequent Event [Line Items]
Cash redemption price	$ 10
Board of Directors Chairman | Forecast
Subsequent Event [Line Items]
Number of preferred stock shares acquired (in shares) | shares	100,000
Share price (in dollars per share)	$ 10
Aggregate proceeds | $	$ 1,000,000