Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net loss including (noncontrolling interests)	$ (2,815)	$ (3,864)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	170	772
Loss on disposal of property and equipment	42	28
Depreciation and amortization	128	93
Changes in operating assets and liabilities:
Accounts receivable	346	424
Projects in process	119	(528)
Inventory	(22)
Prepaid expenses and other current assets	(630)	(70)
Accounts payable and accrued expenses	(180)	711
Deferred revenues	767	(385)
Net cash used in operating activities	(2,075)	(2,819)
Cash flows from investing activities:
Purchase of property and equipment	(266)	(36)
Investment in joint venture	(3)
Net cash used in investing activities	(269)	(36)
Cash flows from financing activities:
Principal payments on capital lease obligations	(49)	(29)
Net cash used in financing activities	(49)	(29)
Effect of exchange rate changes on cash	(56)	(86)
Net decrease in cash	(2,449)	(2,970)
Cash at beginning of period	3,082	6,129
Cash at end of period	633	3,159
Supplemental disclosure of cash flow information:
Cash paid for income taxes	179	37
Cash paid for interest	15	8
Supplemental disclosure of non-cash investing and financing activities
Purchase of equipment with capital lease obligations	$ 90