Condensed Consolidated Statement Of Equity (USD $) In Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balance, value at Dec. 31, 2010	$ 23	$ 186,252	$ (189)	$ (57,925)	$ 4,958	$ 133,119
Balance, shares at Dec. 31, 2010	23,474		134
Exercise of stock options, shares	196
Exercise of stock options, value		2,129				2,129
Issuance (repurchase) of restricted stock, net, shares			147
Issuance (repurchase) of restricted stock, net, value	156	156	(4)			152
Share-based compensation expense, shares	8
Share-based compensation expense, value		1,234				1,234
Issuance of common stock, shares	1,495
Issuance of common stock, value	2	62,052				62,054
Issuance of stock for acquisitions, value	50	2,042				2,042
Common stock dividends, shares	25,328
Common stock dividend, value	26			(26)
Net income				20,195		20,195
Gain on pension plan-unrealized					5	5
Foreign currency translation adjustment					2,622	2,622
Balance, value at Jun. 30, 2011	$ 51	$ 253,865	$ (193)	$ (37,756)	$ 7,585	$ 223,552
Balance, shares at Jun. 30, 2011	50,707		281