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Shareholders' Equity and Regulatory Capital Requirements (Details)
12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Details      
Serial preferred stock shares authorized 250,000 250,000  
Serial preferred shares issued 0 0  
Serial preferred shares outstanding 0 0  
Stock Repurchased During Period, Shares 0 0 0