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	200
Exercise of stock options, value		[1]	2,154				2,154
Issuance (repurchase) of restricted stock, net, shares	227			190
Issuance (repurchase) of restricted stock, net, value		[1]	228	(26)			202
Share-based compensation expense, shares	8
Share-based compensation expense, value			1,827				1,827
Issuance of common stock, shares	1,495
Issuance of common stock, value	2		62,052				62,054
Issuance of stock for acquisitions, shares	110
Issuance of stock for acquisitions, value		[1]	3,042				3,042
Common stock dividend, shares	25,328
Common stock dividend, value	26				(26)
Net income					27,415		27,415
Foreign currency translation adjustment						(250)	(250)
Balance, value at Sep. 30, 2011	$ 51		$ 255,555	$ (215)	$ (30,536)	$ 4,708	$ 229,563
Balance, shares at Sep. 30, 2011	50,842			324

[1] Amounts not shown due to rounding.