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Summary of Significant Accounting Policies (Details 1)	Mar. 31, 2013	Mar. 31, 2012
Outstanding options, warrants and restricted stock units
Total	11,282,286	19,849,191
Options [Member]
Outstanding options, warrants and restricted stock units
Total	443,926	872,032
Restricted stock units [Member]
Outstanding options, warrants and restricted stock units
Total	1,236,982	1,542,676
Warrants [Member]
Outstanding options, warrants and restricted stock units
Total	9,601,378	17,434,483

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