DERIVATIVE FINANCIAL INSTRUMENTS (Details)	3 Months Ended		6 Months Ended										3 Months Ended		6 Months Ended
	Sep. 30, 2012 USD ($) number	Sep. 30, 2011 USD ($)	Sep. 30, 2012 USD ($) number	Sep. 30, 2011 USD ($)	Mar. 31, 2012 number	Jun. 30, 2011 USD ($)	Jun. 30, 2011 EUR (€)	Mar. 31, 2011 EUR (€) number	Mar. 31, 2011 Maximum [Member] USD ($)	Mar. 31, 2011 Maximum [Member] EUR (€)	Mar. 31, 2011 Minimum [Member] USD ($)	Mar. 31, 2011 Minimum [Member] EUR (€)	Sep. 30, 2011 Other Income[Member] USD ($)	Sep. 30, 2011 Foreign Exchange Forward [Member] USD ($)	Sep. 30, 2011 Foreign Exchange Forward [Member] USD ($)
Cash Flow Hedges [Line Items]
Number of Open Forward Contracts	0		0		0			6
Derivative Foreign Currency Option Strike Price						$ 1.418			$ 1.3267		$ 1.3153
Underlying Notional Amount Of Foreign Currency Cash Flow Hedge Derivatives										7,000,000		5,000,000
Notional Amount Of Foreign Currency Cash Flow Hedge Derivatives							13,826,241	34,300,871
Realized gain/loss on forward contracts	0	0	0	0
Derivative Instruments Gain Loss [Line Items]
Amount of Gain/Loss in OCI														(1,653,000)	(2,150,000)
Amount of Gain/Loss Reclassified from OCI													0		0
Amount of Gain/Loss Recognized in Income													$ 0		$ 0