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DEPOSITS: Schedule of Interest Expense by Deposit Type (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Deposits [Abstract]      
Interest checking $ 98 $ 99 $ 79
Money market 309 272 277
Savings accounts 110 85 71
Certificates of deposit 634 717 899
Total $ 1,151 $ 1,173 $ 1,326