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Employee Stock Ownership Plan: Employee Stock Ownership Plan (ESOP) Disclosures (Details) (USD $)
12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Details        
ESOP shares, fair value of unreleased shares $ 338,000 $ 325,000 $ 334,000 $ 524,000
ESOP shares, unreleased 98,532 123,165 147,798 172,431
ESOP shares, allocated and released 864,052 839,419 814,786 790,153
ESOP shares 962,584 962,584 962,584 962,584
ESOP shares, allocation 24,633 24,633 24,633