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14. Stock Option Plans (Details) - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Abstract]    
Dividend Yield 0.00% 0.00%
Risk-free Interest Rate, Minimum   0.86%
Risk-free Interest Rate, Maximum 0.79% 1.08%
Volatility, Minimum   36.07%
Volitility, Maximum 45.30% 36.63%
Life 5 years 5 years