CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities
Net loss	$ (8,392)	$ (7,537)
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation and amortization	55	26
Amortization of debt issuance costs	72
Reduction in accounts payable and accrued liabilities from the expiration of statute of limitations	(104)	(316)
Change in fair value of derivative liabilities	5,148	5,095
Warrants issued in lieu of cash paid for services	1
Stock-based compensation	269	299
Change in assets and liabilities
Accounts receivable	(177)	200
Inventory	(165)	(70)
Other assets	26	(28)
Accounts payable	(157)	(82)
Deferred revenue	(169)	139
Accrued expenses	(40)	(485)
Pension obligation	17	6
Total adjustments	4,776	4,784
Net cash used in operating activities	(3,616)	(2,753)
Cash flows from investing activities
Purchase of property and equipment	(74)	(110)
Net cash used in investing activities	(74)	(110)
Cash flows from financing activities
Proceeds from exercised stock options	3	1
Proceeds from exercised warrants to purchase stock	528
Dividends paid	(25)	(203)
Repayment of notes payable		(45)
Net cash provided by (used in) financing activities	506	(247)
Effect of exchange rate changes on cash	(8)	(15)
Net decrease in cash and cash equivalents	(3,192)	(3,125)
Cash and cash equivalents at beginning of period	4,225	6,773
Cash and cash equivalents at end of period	1,033	3,648
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	6,132	13,588
Issuance of common stock warrants securing line of credit borrowing facility	580
Issuance of common stock pursuant to cashless warrant exercises	40	690
Warrants issued for intangible asset purchases		87
Contingent royalty payment		72
Acquisition of intangible assets		(159)
Issuance of common stock pursuant to achievement of vesting conditions	$ 1