Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (4,541)	$ (6,376)
Adjustments to reconcile net loss to net cash used for operating activities:
Amortization of prepaid rent	322	268
Depreciation and amortization	270	663
Expense for warrants and stock options issued to employees	1,306	1,049
Loss on disposal of property and equipment	0	(1)
Amortization of deferred gain	(94)	(78)
Change in fair value of contingent consideration	(11)	3
Changes in assets and liabilities, net of effects of acquisitions:
Trade receivables	162	599
Equipment financing receivables	176	(134)
Inventories	(62)	145
Prepaid expenses	(112)	(89)
Other current assets	(14)	54
Other long-term assets	(55)	5
Accounts payable, accrued expenses and other	(380)	(38)
Income tax payable	(7)	7
Deferred revenue	66	(525)
Net cash used for operating activities	(2,974)	(4,448)
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of property and equipment	(25)	(8)
Proceeds from sale of property and equipment	0	2,002
Acquisition of certificate of deposit	0	(1)
Change in restricted cash	21	354
Business acquisitions	0	(195)
Net cash (used for)/provided by investing activities	(4)	2,152
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from note payable and common stock warrants issued	1,000	110
Repayments of notes payable	(110)	0
Proceeds from exercise of options	50	70
Payments of contingent consideration	(61)	(54)
Proceeds from sale of common stock and warrants	690	2,000
Net cash provided by financing activities	1,569	2,126
NET DECREASE IN CASH AND CASH EQUIVALENTS	(1,409)	(170)
CASH AND CASH EQUIVALENTS AT THE BEGINNING OF THE YEAR	2,906	3,076
CASH AND CASH EQUIVALENTS AT THE END OF THE YEAR	1,497	2,906
Supplemental disclosure of cash flow information:
Cash used during the year for: Income taxes, net	(1)	(14)
Supplemental disclosure of non-cash investing and financing information:
Prepayment of rent with common stock	0	966
Business acquisition with stock (Note 3)	0	134
Contingent consideration related to acquisition (Note 3)	0	211
Issuance of common stock from contingent consideration related to business acquisition	40	0
Prepaid assets financed through notes payable	137	0
Note payable discount	$ 115	$ 0