Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows From Operating Activities:
Net loss	$ (1,849)	$ (2,223)
Net income from discontinued operations	649	37
Adjustments to reconcile net loss to net cash used in operating activites:
Stock-based compensation	508	768
Stock issued as employee compensation	0	76
Stock issued for consulting fees	0	58
Warrant expense	0	716
Change in fair value of warrant liability	0	94
Depreciation	20	80
Provision for uncollectible accounts receivable	8	21
Loss on sale of equipment	0	5
Gain on the settlement of accounts payable	0	(63)
Changes in operating assets and liabilities:
Accounts receivable	(43)	(111)
Other current assets	(67)	268
Note receivable	(700)	0
Deposits and other assets	10	68
Assets of discontinued operations	23	3
Accounts payable	(72)	154
Accrued liabilities	98	(192)
Liabilities of discontinued operations	0	(40)
Net Cash Used In Operating Activities	(1,415)	(281)
Cash Flows From Investing Activities:
Proceeds from the sale of equipment	0	1
Net Cash Provided By Investing Activities	0	1
Cash Flows From Financing Activities:
Proceeds from issuance of common stock for stock option exercises	68	8
Proceeds from issuance of common stock for warrant exercises	1,471	0
Proceeds from issuance of common stock	0	4,000
Cash paid as direct offering costs	0	(296)
Net Cash Provided By Financing Activities	1,539	3,712
Net increase in cash	124	3,432
Cash at beginning of period	6,678	2,649
Cash at end of period	6,802	6,080
Supplemental disclosures of cash flow information:
Cash paid for interest	0	0
Cash paid for taxes	$ 0	$ 0