Consolidated Statement of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Treasury Stock	Additional Paid-In	Retained	Non-controlling Interest
Beginning at Dec. 31, 2010	$ 246,856	$ 270	$ 0	$ 154,667	$ 91,919	$ 0
Treasury stock, shares at Dec. 31, 2010			(12,231)
Balance, shares at Dec. 31, 2010		27,017,165
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	2,712			2,712
Exercise of stock options	185	0		185
Exercise of stock options, shares	32,124	32,124
Issuance of restricted stock	0	4		(4)
Issue restricted stock, shares		400,417
Forfeiture of restricted stock	0
Forfeiture of restricted stock, shares		(12,784)	0
Purchase of stock into treasury	(3,003)		3,003
Purchase of stock into treasury, shares	(305,500)		(305,500)
Net income (loss)	(13,114)				(13,114)
Beginning at Dec. 31, 2011	232,933	274	(3,003)	157,560	78,102	0
Treasury stock, shares at Dec. 31, 2011			(317,731)
Balance, shares at Dec. 31, 2011		27,436,922
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	3,115			3,115
Exercise of stock options	299	1		298
Exercise of stock options, shares	56,658	56,658
Issuance of restricted stock	0	0
Noncontrolling interest, acquired	16					16
Contributions from noncontrolling interest	34					34
Issue restricted stock, shares		36,640
Net income (loss)	(11,866)				(11,866)
Beginning at Dec. 31, 2012	224,531	275	(3,003)	160,973	66,236	50
Treasury stock, shares at Dec. 31, 2012	(317,731)		(317,731)
Balance, shares at Dec. 31, 2012	27,530,220	27,530,220
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	2,141			2,141
Exercise of stock options	859	3		856
Exercise of stock options, shares	155,731	155,731
Issuance of restricted stock	0	0
Noncontrolling Interest, Decrease from Deconsolidation	(50)
Issue restricted stock, shares		24,824
Net income (loss)	331				331
Beginning at Dec. 31, 2013	$ 227,812	$ 278	$ (3,003)	$ 163,970	$ 66,567	$ 0
Treasury stock, shares at Dec. 31, 2013	(317,731)		(317,731)
Balance, shares at Dec. 31, 2013	27,710,776	27,710,775