CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total USD ($)	Common stock, excluding unvested restricted stock	Common Stock USD ($)	Treasury Stock USD ($)	Additional Paid-In Capital USD ($)	Accumulated Other Comprehensive Income (Loss) USD ($)	Retained Earnings /(Accumulated Deficit) USD ($)
Balance at beginning of year at Dec. 31, 2010	$ 328,040		$ 407		$ 222,784	$ 333	$ 104,516
Balance at beginning of year (in shares) at Dec. 31, 2010		40,730,753
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	6,091		4		6,087
Stock-based compensation (in shares)		404,831
Proceeds from exercise of stock options	596		1		595
Proceeds from exercise of stock options (in shares)		59,606
Option exercise recognized tax benefit (shortfall)	77				77
Net settlement of options	(31)				(31)
Purchase of treasury stock	(57)			(57)
Purchase of treasury stock (in shares)		(3,722)		3,722
Net loss	(1,304)						(1,304)
Reclass of discontinued operations loss out of accumulated other comprehensive income	(1,335)					(1,335)
Foreign currency translation	(1,572)					(1,572)
Balance at end of year at Dec. 31, 2011	330,505		412	(57)	229,512	(2,574)	103,212
Balance at end of year (in shares) at Dec. 31, 2011				3,722
Balance at end of year (in shares) at Dec. 31, 2011		41,191,468
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	4,322		4		4,318
Stock-based compensation (in shares)		351,169
Employee stock purchase plan	46				46
Employee stock purchase plan (in shares)		10,541
Option exercise recognized tax benefit (shortfall)	(217)				(217)
Net loss	(207,347)						(207,347)
Foreign currency translation	130					130
Balance at end of year at Dec. 31, 2012	127,439		416	(57)	233,659	(2,444)	(104,135)
Balance at end of year (in shares) at Dec. 31, 2012				3,722
Balance at end of year (in shares) at Dec. 31, 2012		41,553,178
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	2,157		1		2,156
Stock-based compensation (in shares)		206,446
Employee stock purchase plan	21				21
Employee stock purchase plan (in shares)		8,902
Net loss	(18,286)						(18,286)
Foreign currency translation	531					531
Balance at end of year at Dec. 31, 2013	$ 111,862		$ 417	$ (57)	$ 235,836	$ (1,913)	$ (122,421)
Balance at end of year (in shares) at Dec. 31, 2013				3,722
Balance at end of year (in shares) at Dec. 31, 2013		41,768,526