Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred tax assets:
NOL carryforwards	$ 12,778	$ 12,933
Accrued expenses	713	1,360
Contract loss provision		171
Impairment loss on marketable securities	40	40
Employee benefits	33	64
Stock-based compensation	1,369	4,523
Depreciation	13	3
Bad debt	7	7
Other, net	73	73
Total Deferred Tax Assets	15,026	19,174
Less valuation allowance	(15,026)	(18,969)
Net Deferred Tax Assets		205
Deferred tax liabilities:
Purchased intangible assets		(11)
Goodwill amortization		(194)
Total Deferred Tax Liabilities		(205)
Net