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Discontinued Operations in India (Details 1) (USD $)
6 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Net sales $ 0 $ 516,748
Cost of goods sold 0 684,067
Gross profit (loss) 0 (167,319)
Operating expense 0 (157,535)
Operating loss 0 (324,854)
Shutdown expense accrual 0  
Loss from discontinued operations before income taxes 0 (324,854)
Benefit from income taxes from discontinued operations 0 116,948
Net loss from discontinued operations $ 0 $ (207,906)