CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net loss	$ (2,277)	$ (2,330)
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation and amortization	35	42
Amortization of debt issuance costs and beneficial conversion feature	$ 13	426
Warrants issued in lieu of cash paid for services		80
Stock-based compensation	$ 286	182
Change in assets and liabilities
Accounts receivable	(27)	(169)
Inventory	2	(89)
Other assets	(47)	(38)
Accounts payable	2	(195)
Deferred revenue	(112)	(133)
Accrued expenses	(143)	23
Pension obligation	86	(27)
Total adjustments	95	102
Net cash used in operating activities	(2,182)	(2,228)
Cash flows from investing activities
Purchase of property and equipment	(21)	(39)
Net cash used in investing activities	$ (21)	(39)
Cash flows from financing activities
Proceeds from exercised stock options		7
Proceeds from issuance of preferred stock, net of issuance costs		9,955
Proceeds from line of credit		750
Repayment of line of credit borrowings		(350)
Net cash provided by financing activities		10,362
Effect of exchange rate changes on cash	$ (54)	80
Net increase (decrease) in cash and cash equivalents	(2,257)	8,175
Cash and cash equivalents at beginning of period	3,352	218
Cash and cash equivalents at end of period	$ 1,095	8,393
Supplemental disclosure of cash flow information:
Cash paid for interest		$ 1
Cash paid for income taxes
Summary of non-cash investing and financing activities:
Beneficial conversion feature of convertible debt		$ 146
Conversion of related party notes into Series E Preferred		1,978
Stock dividend on Series E Preferred	$ 335	$ 191