Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Treasury Stock
Balance at Dec. 31, 2008	$ 22,710	$ 218	$ 559,359	$ (539,988)	$ 3,121	$ 0
Balance, shares at Dec. 31, 2008		21,789,645
Net earnings	15,327			15,327
Foreign currency translation adjustments	183				183
Issuances of common stock:
Restricted share awards		8	(8)
Restricted share awards, shares		817,905
Restricted shares remitted by employees for taxes	(116)		(116)
Restricted shares remitted by employees for taxes, shares		(15,096)
Stock option exercises	26		26
Stock option exercises, shares		9,375
2006 MIP Performance Unit settlements		9	(9)
2006 MIP Performance Unit settlements, shares		884,473
Forfeited restricted share awards		(1)	1
Forfeited restricted share awards, shares		(134,656)
Purchase of treasury stock	(246)					(246)
Retirement of treasury stock		(1)	(245)			246
Retirement of treasury stock, shares		(78,754)
Stock-based compensation expense	3,555		3,555
Balance at Dec. 31, 2009	41,439	233	562,563	(524,661)	3,304	0
Balance, shares at Dec. 31, 2009		23,272,892
Net earnings	3,253			3,253
Foreign currency translation adjustments	380				380
Issuances of common stock:
Restricted share awards		6	(6)
Restricted share awards, shares		560,460
Restricted shares remitted by employees for taxes	(214)		(214)
Restricted shares remitted by employees for taxes, shares		(28,547)
Stock option exercises	109		109
Stock option exercises, shares		38,633
2006 MIP Performance Unit settlements		1	(1)
2006 MIP Performance Unit settlements, shares		134,490
Forfeited restricted share awards		(1)	1
Forfeited restricted share awards, shares		(45,154)
Stock-based compensation expense	3,876		3,876
Balance at Dec. 31, 2010	48,843	239	566,328	(521,408)	3,684	0
Balance, shares at Dec. 31, 2010		23,932,774
Net earnings	2,816			2,816
Foreign currency translation adjustments	(519)				(519)
Issuances of common stock:
Restricted share awards		7	(7)
Restricted share awards, shares		694,030
Shares issued for acquisition	3,722	6	3,716
Shares issued for acquisition, shares		640,614
Restricted shares remitted by employees for taxes	(1,063)	(1)	(1,062)
Restricted shares remitted by employees for taxes, shares		(132,974)
Stock option exercises	353	1	352
Stock option exercises, shares		116,073
2006 MIP Performance Unit settlements, shares		26,898
Forfeited restricted share awards		(1)	1
Forfeited restricted share awards, shares		(168,661)
Stock-based compensation expense	4,938		4,938
Balance at Dec. 31, 2011	$ 59,090	$ 251	$ 574,266	$ (518,592)	$ 3,165	$ 0
Balance, shares at Dec. 31, 2011		25,108,754