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	$ (4,389)	$ (4,096)
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation and amortization	70	83
Amortization of debt issuance costs and beneficial conversion feature	37	426
Reduction in accrued expense from the expiration of statute of limitations	(200)
Warrants issued in lieu of cash paid for services		80
Stock-based compensation	565	376
Change in assets and liabilities
Accounts receivable	75	(47)
Inventory	(28)	443
Other assets	(73)	9
Accounts payable		(326)
Deferred revenue	(434)	(1,177)
Accrued expense	(129)	83
Pension obligation	81	10
Total adjustments	(36)	(40)
Net cash used in operating activities	(4,425)	(4,136)
Cash flows from investing activities
Purchase of property and equipment	(44)	(43)
Net cash used in investing activities	(44)	(43)
Cash flows from financing activities
Proceeds from exercised stock options		33
Proceeds from issuance of preferred stock, net of issuance costs		9,955
Proceeds from lines of credit	1,500	750
Repayment of line of credit borrowings		(350)
Dividends paid	(25)	(25)
Net cash provided by financing activities	1,475	10,363
Effect of exchange rate changes on cash	(31)	46
Net increase (decrease) in cash and cash equivalents	(3,025)	6,230
Cash and cash equivalents at beginning of period	3,352	218
Cash and cash equivalents at end of period	327	6,448
Supplemental disclosure of cash flow information:
Cash paid for interest	1	1
Cash paid for income taxes
Summary of non-cash investing and financing activities:
Beneficial conversion feature of convertible debt	121	146
Conversion of related party notes into Series E Preferred		1,978
Stock dividend on Series E Preferred	$ 631	$ 480