Consolidated Statements Of Stockholders' Equity (USD $) In Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Total
Balance, in value at Dec. 31, 2012	$ 983	$ 398,903	$ (360,464)	$ 39,422
Balance, in shares at Dec. 31, 2012	9,829
Stock options exercised, in shares
Vesting of awards granted, in shares	88
Vesting of awards granted, in value	8	342		350
Match to 401(k) Plan, in shares	7
Match to 401(k) Plan, in value	1	33		34
Net income			11,025	11,025
Balance, in value at Mar. 31, 2013	$ 992	$ 399,278	$ (349,439)	$ 50,831
Balance, in shares at Mar. 31, 2013	9,924