Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Cash Flows From Operating Activities:
Net Loss from continuing operations	$ (7,626)	$ (1,195)
Loss from discontinued operations	(523)	(516)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	973	400
Stock issued as employee compensation	94	47
Stock issued for license fee	0	70
Stock issued for exclusive channel collaboration agreement	1,684	0
Stock issued for consulting fees	165	214
Warrant expense	1,492	0
Change in fair value of warrant liability	242	0
Depreciation	144	346
Provision for uncollectible accounts receivable	414	130
Amortization of premium on investments	57	0
Loss on sale of short-term investment	20	0
(Gain) loss on sale of equipment	6	(3)
Impairment loss on equipment	0	121
Gain on the settlement of accounts payable	(63)	0
Changes in operating assets and liabilities:
Accounts receivable	(480)	(438)
Other current assets	327	(335)
Deposits and other assets	60	0
Assets of discontinued operations	191	13
Accounts payable	153	(196)
Accrued liabilities	(181)	202
Liabilities of discontinued operations	(24)	(5)
Net Cash Used In Operating Activities	(2,875)	(1,145)
Cash Flows From Investing Activities:
Purchase of short-term investments	(4,370)	0
Proceeds from short-term investments	4,293	0
Purchases of property and equipment	0	(12)
Proceeds from the sale of equipment	2	77
Net Cash Provided By (Used In) Investing Activities	(75)	65
Cash Flows From Financing Activities:
Proceeds from issuance of common stock for stock option and warrant exercises	15	129
Proceeds from issuance of common stock for exclusive channel collaboration agreement	3	0
Proceeds from the issuance of common stock	7,500	1,000
Cash paid as direct offering costs	(539)	(115)
Net Cash Provided By Financing Activities	6,979	1,014
Net increase (decrease) in cash	4,029	(66)
Cash at beginning of year	2,649	2,715
Cash at end of year	6,678	2,649
Supplemental disclosures of cash flow information:
Cash paid for interest	0	10
Cash paid for taxes	0	0
Supplemental disclosure of non-cash investing and financing activities:
Exchange of equipment	0	64
Reclassification of warrant liability to additional paid-in capital	$ 1,734	$ 0