Segments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Condensed consolidated revenue	$ 28,555	$ 31,086	$ 87,421	$ 94,333
Condensed consolidated gross profit	6,640	8,301	20,780	27,131
Condensed consolidated income (loss) from operations	(2,388)	689	(5,114)	1,608
Goodwill, Impairment Loss	2,580	0	2,580	0	$ 338
Other Nonoperating Income (Expense)	(237)	(428)	(237)	(414)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(2,849)	(81)	(6,902)	102
Operating Segments [Member]
Segment Reporting Information [Line Items]
Condensed consolidated income (loss) from operations	192	816	(1,195)	3,356
Operating Segments [Member] \| Diagnostic Services [Member]
Segment Reporting Information [Line Items]
Condensed consolidated revenue	12,171	12,070	36,932	36,551
Condensed consolidated gross profit	2,586	2,479	8,152	7,934
Condensed consolidated income (loss) from operations	511	143	1,249	346
Operating Segments [Member] \| Diagnostic Imaging [Member]
Segment Reporting Information [Line Items]
Condensed consolidated revenue	2,975	2,703	8,701	9,703
Condensed consolidated gross profit	1,318	1,177	3,497	4,743
Condensed consolidated income (loss) from operations	149	(40)	(314)	982
Operating Segments [Member] \| Mobile Healthcare [Member]
Segment Reporting Information [Line Items]
Condensed consolidated revenue	10,496	11,755	32,148	35,945
Condensed consolidated gross profit	1,452	2,236	4,894	7,768
Condensed consolidated income (loss) from operations	(174)	219	(1,121)	819
Operating Segments [Member] \| Medical Device Sales and Service
Segment Reporting Information [Line Items]
Condensed consolidated revenue	2,913	4,558	9,640	12,134
Condensed consolidated gross profit	1,284	2,409	4,237	6,686
Condensed consolidated income (loss) from operations	(294)	494	(1,009)	1,209
Corporate, Non-Segment [Member] \| Medical Device Sales and Service
Segment Reporting Information [Line Items]
Goodwill, Impairment Loss	(2,580)	0	(2,580)	0
DMS Health [Member] \| Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Condensed consolidated income (loss) from operations	0	(127)	0	(1,748)
Settled Litigation \| Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Condensed consolidated income (loss) from operations	$ 0	$ 0	$ (1,339)
Business Combination, Acquisition Related Costs				$ 0

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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