Consolidated Statements of Stockholders' Equity (USD $)	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total
Balances at Dec. 31, 2010	$ 3,000		$ 211,861,000	$ 1,216,000	$ (12,840,000)	$ 200,240,000
Balances (in Shares) at Dec. 31, 2010	32,216,104
Issuance of common stock for acquisitions			45,386,000			45,386,000
Issuance of common stock for acquisitions (in Shares)	2,098,038
Issuance of common stock for the exercise of options and warrants			2,292,000			2,292,000
Issuance of common stock for the exercise of options and warrants (in Shares)	479,423
Issuance of common stock, from treasury for acquisitions		2,158,000	6,000		(376,000)	1,788,000
Issuance of common stock, from treasury for acquisitions (in Shares)	202,999
Issuance of common stock for services (in Shares)	44,908
Issuance of common stock, net of related costs, to settle earnout obligations			808,000			808,000
Issuance of common stock, net of related costs, to settle earnout obligations (in Shares)	57,758
Share-based compensation			7,834,000			7,834,000
Net loss					(8,333,000)	(8,333,000)
Other comprehensive loss:
Foreign currency translation adjustments				(2,645,000)		(2,645,000)
Stock repurchases under stock repurchase programs		(9,421,000)				(9,421,000)
Stock repurchases under stock repurchase programs (in Shares)	(1,008,612)
Other			(25,000)			(25,000)
Balances at Dec. 31, 2011	3,000	(7,263,000)	268,162,000	(1,429,000)	(21,549,000)	237,924,000
Balances (in Shares) at Dec. 31, 2011	34,090,618
Issuance of common stock for the exercise of options and warrants			2,258,000			2,258,000
Issuance of common stock for the exercise of options and warrants (in Shares)	302,875
Issuance of common stock, from treasury for acquisitions		58,000	27,000			85,000
Issuance of common stock, from treasury for acquisitions (in Shares)	6,190					6,000
Issuance of common stock for services (in Shares)	47,603
Shares recovered relating to acquisitions		(896,000)				(896,000)
Shares recovered relating to acquisitions (in Shares)	(66,926)
Share-based compensation			12,649,000			12,649,000
Excess tax benefit on share-based compensation			2,853,000			2,853,000
Net loss					(14,939,000)	(14,939,000)
Other comprehensive loss:
Foreign currency translation adjustments				4,612,000		4,612,000
Stock repurchases under stock repurchase programs		(387,000)				(387,000)
Stock repurchases under stock repurchase programs (in Shares)	(39,000)
Other			(11,000)			(11,000)
Balances at Dec. 31, 2012	3,000	(8,488,000)	285,938,000	3,183,000	(36,488,000)	244,148,000
Balances (in Shares) at Dec. 31, 2012	34,341,360
Issuance of common stock for the exercise of options and warrants	1,000		24,261,000			24,262,000
Issuance of common stock for the exercise of options and warrants (in Shares)	2,297,114
Issuance of common stock for services (in Shares)	289,738
Share-based compensation			17,187,000			17,187,000
Excess tax benefit on share-based compensation			6,610,000			6,610,000
Net loss					(10,216,000)	(10,216,000)
Other comprehensive loss:
Foreign currency translation adjustments				(9,120,000)		(9,120,000)
Balances at Dec. 31, 2013	$ 4,000	$ (8,488,000)	$ 333,996,000	$ (5,937,000)	$ (46,704,000)	$ 272,871,000
Balances (in Shares) at Dec. 31, 2013	36,928,212