Fair Value Measurements Fair Value on a Non-recurring basis (Details) - USD ($)	Dec. 31, 2016	Mar. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure		$ 2,495,000
Loans Receivable Held-for-sale, Amount	$ 16,103,000	2,495,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment	6,922,000	4,669,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets	1,166,000	1,008,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Other Real Estate, Foreclosed Assets, and Repossessed Assets	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Other Real Estate, Foreclosed Assets, and Repossessed Assets	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	16,103,000	2,495,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$ 6,922,000	4,669,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets		$ 1,008,000