DERIVATIVE INSTRUMENTS AND FOREIGN CURRENCY EXPOSURE (Details) (USD $)	3 Months Ended		12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013	Jan. 31, 2012
Derivatives not designated as hedging instruments, Foreign Exchange Forward Contracts
Notional Value in USD	$ 5,526,710	$ 2,779,785	$ 42,027,715	$ 12,730,191
Gain and loss reported in current operating income (expense)	(171,956)	(99,183)	(432,989)	(230,110)
Derivatives designated as hedging instruments, Asset Derivative from Foreign Currency Cash Flow Hedge
Notional Value in USD	6,944,040	6,904,150	6,944,040	6,904,150
Gain and loss reported in equity as accumulated Other Comprehensive Income	38,513	123,313	38,513	123,313
Reported in operating income (loss)	$ (8,618)	$ 75,882	$ 24,374	$ 106,125