CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings (Deficit)	Non-Controlling Interests
BALANCE at Dec. 31, 2010	$ 312,784	$ 411	$ (34,714)	$ 326,467	$ 20,620
BALANCE (in shares) at Dec. 31, 2010		41,123,365	(3,221,775)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(36,492)				(36,830)	338
Issuance of Stock:
Issuance of shares for options exercised including tax benefit	449		707	(258)
Issuance of shares for options exercised including tax benefit (in shares)			65,950
Issuance of restricted stock			2,488	(2,488)
Issuance of restricted stock (in shares)			230,702
Shares received in lieu of tax withholding payment on vested restricted stock	(662)		(662)
Shares received in lieu of tax withholding payment on vested restricted stock (in shares)			(50,793)
Tax benefit from vesting of restricted stock	54			54
Stock-based compensation expense	3,604			3,604
Dividends	(7,552)			(3,771)	(3,781)
Share repurchase	(7,256)		(7,256)
Share repurchase (in shares)			(738,590)
Acquisition of EAS	17,377					17,377
Contribution from noncontrolling interest	800					800
BALANCE at Dec. 31, 2011	283,106	411	(39,437)	323,608	(19,991)	18,515
BALANCE (in shares) at Dec. 31, 2011		41,123,365	(3,714,506)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	11,849				13,463	(1,614)
Issuance of Stock:
Issuance of shares for options exercised including tax benefit	373		1,087	(714)
Issuance of shares for options exercised including tax benefit (in shares)			102,750
Issuance of restricted stock			742	(742)
Issuance of restricted stock (in shares)			70,000
Shares received in lieu of tax withholding payment on vested restricted stock	(544)		(544)
Shares received in lieu of tax withholding payment on vested restricted stock (in shares)			(51,507)
Tax benefit from vesting of restricted stock	56			56
Stock-based compensation expense	2,797			2,797
Dividends	(7,471)			(7,471)
Share repurchase	(2,860)		(2,860)
Share repurchase (in shares)			(286,036)
BALANCE at Dec. 31, 2012	287,306	411	(41,012)	317,534	(6,528)	16,901
BALANCE (in shares) at Dec. 31, 2012		41,123,365	(3,879,299)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	28,556				27,269	1,287
Issuance of Stock:
Issuance of shares for options exercised including tax benefit	5,233		4,711	522
Issuance of shares for options exercised including tax benefit (in shares)			439,762
Issuance of restricted stock			1,301	(1,301)
Issuance of restricted stock (in shares)			122,375
Shares received in lieu of tax withholding payment on vested restricted stock	(631)		(631)
Shares received in lieu of tax withholding payment on vested restricted stock (in shares)			(45,266)
Tax benefit from vesting of restricted stock	184			184
Forfeiture of unvested restricted stock			(5)	5
Forfeiture of unvested restricted stock (in shares)			(469)
Stock-based compensation expense	3,041			3,041
Dividends	(7,835)			(1,862)	(5,973)
Share repurchase	(1,832)		(1,832)
Share repurchase (in shares)	(100,000)		(125,541)
BALANCE at Dec. 31, 2013	$ 314,022	$ 411	$ (37,468)	$ 318,123	$ 14,768	$ 18,188
BALANCE (in shares) at Dec. 31, 2013		41,123,365	(3,488,438)