CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance, as previously reported at Dec. 31, 2009	$ 3,757	$ 121,016	$ 98,482	$ 8,589	$ (5,327)	$ 226,517
Balance, as previously reported (in shares) at Dec. 31, 2009	20,873				758
Cumulative effect of adoption of a change in accounting principle, net of tax			(554)			(554)
Balance at December 31, 2009, as adjusted			97,928			225,963
Amortization of fair value of stock options granted		1,114				1,114
Stock options exercised		(40)			65	25
Stock options exercised (in shares)					(9)
Accretion of redeemable non-controlling interest		(275)				(275)
Net income (loss), as adjusted			7,403			7,403
Other comprehensive income (loss), net of tax				1,048		1,048
Balance, as adjusted at Dec. 31, 2010	3,757	121,815	105,331	9,637	(5,262)	235,278
Balance, as adjusted (in shares) at Dec. 31, 2010	20,873				749
Acquisition of treasury shares					(6,401)	(6,401)
Acquisition of treasury shares (in shares)					875
Amortization of fair value of stock options granted		709				709
Stock options exercised		(6)			105	99
Stock options exercised (in shares)					(15)
Accretion of redeemable non-controlling interest		(31)				(31)
Net income (loss), as adjusted			(10,891)			(10,891)
Other comprehensive income (loss), net of tax				(3,191)		(3,191)
Balance, as adjusted at Dec. 31, 2011	3,757	122,487	94,440	6,446	(11,558)	215,572
Balance, as adjusted (in shares) at Dec. 31, 2011	20,873				1,609
Amortization of fair value of stock options granted		380				380
Accretion of redeemable non-controlling interest		(392)				(392)
Net income (loss), as adjusted			3,524			3,524
Other comprehensive income (loss), net of tax				1,453		1,453
Balance, as adjusted at Dec. 31, 2012	$ 3,757	$ 122,475	$ 97,964	$ 7,899	$ (11,558)	$ 220,537
Balance, as adjusted (in shares) at Dec. 31, 2012	20,873				1,609