CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities
Net loss	$ (5,869)	$ (5,276)
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation and amortization	24	38
Amortization of debt issuance costs and beneficial conversion feature	122	97
Provision for losses on accounts receivable	0	15
Stock-based compensation	708	550
Warrants issued in lieu of cash as compensation for services	9	0
Gain from sale of trademark	0	(50)
Change in assets and liabilities
Accounts receivable	(118)	(60)
Inventory	60	(30)
Other assets	(44)	(21)
Accounts payable	(67)	(82)
Deferred revenue	(464)	(438)
Accrued expense	389	192
Pension obligation	14	60
Total adjustments	633	271
Net cash used in operating activities	(5,236)	(5,005)
Cash flows from investing activities
Purchase of property and equipment	(7)	(1)
Proceeds received from sale of trademark	0	50
Net cash provided by (used in) investing activities	(7)	49
Cash flows from financing activities
Proceeds from exercised stock options	149	227
Proceeds from lines of credit, net	0	3,350
Dividends paid	(25)	(25)
Net cash provided by financing activities	124	3,552
Effect of exchange rate changes on cash	15	(78)
Net decrease in cash	(5,104)	(1,482)
Cash at beginning of period	7,317	1,586
Cash at end of period	2,213	104
Supplemental disclosure of cash flow information:
Cash paid for interest	0	0
Cash paid for income taxes	0	0
Summary of non-cash investing and financing activities:
Beneficial conversion feature of convertible related party lines of credit	21	281
Stock dividend on Convertible Preferred Stock	1,464	996
Preferred Stock Exchange	$ 4	$ 0