Derivative Instruments and Foreign Currency Exposure (Details Textual) (USD $)	3 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Foreign Currency Transaction Loss, before Tax	$ 27,142	$ 315,787
Foreign Currency Transaction Gain Loss Before Tax Price Per Share (in dollars per share)	$ 0.01	$ 0.06
Derivative Financial Instruments, Assets [Member] | Fiscal Year End 2014 [Member]
Other Assets	92,011
Derivative Financial Instruments, Assets [Member] | Fiscal Year End 2013 [Member]
Other Assets	$ 19,544