Consolidated Statements of Stockholders' Equity (USD $) In Thousands, unless otherwise specified	Total	Common stock	Additional Paid-in Capital	Accumulated Deficit	Treasury stock
Balances at Dec. 31, 2011	$ 13,237	$ 2	$ 353,368	$ (261,765)	$ (78,368)
Balances (in shares) at Dec. 31, 2011		26,241			2,962
Increase (Decrease) in Stockholders' Equity
Net income	2,719			2,719
Stock-based compensation to employees and directors	813		813
Common stock issued upon vesting of restricted stock (in shares)		209
Purchase of treasury stock	(464)				(464)
Purchase of treasury stock (in shares)					68
Balances at Mar. 31, 2012	$ 16,305	$ 2	$ 354,181	$ (259,046)	$ (78,832)
Balances (in shares) at Mar. 31, 2012		26,450			3,030