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Summary of Significant Accounting Policies - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share, Convertible Preferred Stock (Detail) - shares
3 Months Ended 6 Months Ended
Sep. 30, 2014
Sep. 30, 2014
Convertible Preferred Stock Excluded from EPS [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potential common shares from Convertible Preferred Stock excluded from EPS 32,400 32,400