CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Deficit)	Non-Controlling Interests
BALANCE at Dec. 31, 2009	$ 305,984	$ 411	$ (33,810)	$ 326,103	$ (181)	$ 13,461
BALANCE (in shares) at Dec. 31, 2009		41,123,365	(3,129,460)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	14,740					14,740
Realized gain on marketable securities reclassified into earnings, net of tax	181				181
Issuance of Stock:
Issuance of shares for options exercised including tax benefit	1,107		1,982	(875)
Issuance of shares for options exercised including tax benefit (in shares)			183,686
Issuance of restricted stock	250		2,864	(2,614)
Issuance of restricted stock (in shares)			235,122
Shares received in lieu of tax withholding payment on vested restricted stock	(616)		(616)
Shares received in lieu of tax withholding payment on vested restricted stock (in shares)			(50,575)
Tax benefit from vesting of restricted stock	106			106
Forfeiture of unvested restricted stock			(60)	60
Forfeiture of unvested restricted stock (in shares)			(5,610)
Stock-based compensation expense	3,687			3,687
Dividends	(7,581)					(7,581)
Share repurchase	(5,074)		(5,074)
Share repurchase (in shares)			(454,938)
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)	(300,000)		(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)