FAIR VALUE AND DERIVATIVE INSTRUMENTS (Details 2) (USD $)	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2013	Dec. 31, 2011
Net gain (loss) on foreign currency forward contracts
Net gain (loss) recorded in OCI	$ (2,100,000)	$ 500,000	$ (2,100,000)	$ 100,000
Foreign currency forwards qualifying and designated as hedges
Notional Amount		52,461,000			48,802,000
Unrealized Loss		103,000			1,017,000
Foreign currency forward not qualifying and designated as hedges
Notional amount		54,500,000			47,600,000
Gains (losses) related to derivative	(1,000,000)	200,000	(1,300,000)
Fair value of the foreign currency forward contracts
Foreign currency forwards designated as hedges - Other current assets		358,000			334,000
Foreign currency forwards designated as hedges - Accrued expenses		(461,000)			(1,351,000)
Foreign currency forwards not designated as hedges - Other current assets		403,000			315,000
Foreign currency forwards not designated as hedges - Accrued expenses		(232,000)			(351,000)
Foreign currency forwards, net		$ 68,000			$ (1,053,000)