Consolidated Statements of Stockholders' Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Retained Deficit	Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2009	$ 14,675	$ 542	$ 153,303	$ (139,171)	$ 0	$ 1
Repurchase of 3,589,201 shares common stock	(1,256)	(36)	(1,220)
comprehensive loss:
Net loss	(2,329)			(2,329)	(2,329)
other comprehensive loss:
Net unrealized gain on available-for-sale securities	6				6	6
Comprehensive loss					(2,323)
Ending balance at Dec. 31, 2010	11,096	506	152,083	(141,500)	0	7
comprehensive loss:
Net loss	(1,976)			(1,976)	(1,976)
other comprehensive loss:
Net unrealized gain on available-for-sale securities	(3)				(3)	(3)
Comprehensive loss					(1,979)
Ending balance at Dec. 31, 2011	$ 9,117	$ 506	$ 152,083	$ (143,476)	$ 0	$ 4