CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities
Net loss	$ (2,773)	$ (8,590)
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation and amortization	26	12
Reduction in accounts payable and accrued liabilities from the expiration of statute of limitations	(104)	(230)
Change in fair value of derivative liabilities	1,176	7,536
Warrants issued in lieu of cash paid for services	1
Stock-based compensation	126	150
Change in assets and liabilities
Accounts receivable	(204)	(28)
Inventory	(109)	(38)
Other assets	(6)	(59)
Accounts payable	(105)	(138)
Deferred revenue	25	379
Accrued expenses	(53)	(223)
Pension obligation	3	13
Total adjustments	776	7,374
Net cash used in operating activities	(1,997)	(1,216)
Cash flows from investing activities
Purchase of property and equipment	(49)	(77)
Net cash used in investing activities	(49)	(77)
Cash flows from financing activities
Proceeds from exercised stock options	2
Proceeds from exercised warrants to purchase stock	16
Dividends paid		(178)
Repayment of notes payable		(45)
Net cash provided by (used in) financing activities	18	(223)
Effect of exchange rate changes on cash	8	(34)
Net decrease in cash and cash equivalents	(2,020)	(1,550)
Cash and cash equivalents at beginning of period	4,225	6,773
Cash and cash equivalents at end of period	2,205	5,223
Supplemental disclosure of cash flow information:
Cash paid for interest
Cash paid for income taxes
Summary of non-cash investing and financing activities:
Reclassification of warrants previously classified as derivative liabilities to additional paid-in capital	626	13,588
Issuance of common stock warrants securing line of credit borrowing facility	$ 580