CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net loss	$ (8,222)	$ (4,328)
Income from discontinued operations		(53)
Gain on sale of discontinued operations, net of taxes		(687)
Depreciation and amortization	20	4
Stock-based compensation expense	299	93
Change in fair value of warrant liabilities	2,400	1,104
Change in fair value of convertible notes	3,461	2,216
Financing costs associated with convertible notes		530
Non-cash interest expense	132	91
Deferred income taxes		(492)
Change in assets and liabilities:
Accounts receivable	138	(166)
Inventory	38	156
Prepaid expenses and other assets	44	(151)
Accounts payable	268	(295)
Deferred revenue	(29)	(98)
Accrued liabilities	(13)	(46)
Net cash flows used in operating activities	(1,464)	(2,122)
Cash flows used for investing activities:
Purchase of property and equipment	(74)
Net cash used for investing activities	(74)
Cash flows from financing activities:
Net proceeds from issuance of convertible notes and warrants		3,605
Net cash provided by financing activities		3,605
Discontinued operations:
Net cash provided by operating activities		210
Net cash provided by investing activities		1,000
Net cash provided by discontinued operations		1,210
Effect of exchange rate changes on cash and cash equivalents	(50)	42
Net (decrease) increase in cash and cash equivalents	(1,588)	2,735
Cash and cash equivalents at beginning of period	2,585	1,324
Cash and cash equivalents at end of period	997	4,059
Supplemental disclosure of cash flow information:
Cash paid for interest	100	72
Supplemental disclosure of noncash investing and financing activities:
Warrant liabilities		792
Convertible notes		$ 3,208