Investment Securities Text Tag (Details)		12 Months Ended
		Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		$ 60,951,000	$ 56,486,000
Available-for-sale Securities		$ 59,011,000	56,180,000	[1]
Percentage Available-for-sale Securities		81.50%
Held-to-maturity	[2]	$ 13,435,000	$ 15,311,000	[1],[3]
Percentage Held-to-maturity Securities		18.50%
Trading Securities		$ 0
Proceeds from Sale and Maturity of Held-to-maturity Securities		0
Financial Instruments, Owned and Pledged as Collateral, at Fair Value		$ 34,300,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions		33	13
Mortgage-Backed Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		$ 37,915,000	$ 20,261,000
Percentage Available-for-Sale, Continuous Unrealized Loss Position		62.50%
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year		1
Available-for-sale Securities		$ 36,703,000	20,170,000
Other investments
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	[4]	$ 10,358,000	10,148,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year		1
Available-for-sale Securities	[4]	$ 9,862,000	$ 9,941,000
Corporate Bonds
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		$ 5,104,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year		5
Available-for-sale Securities		$ 4,964,000

[1] (1) March 31, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Equity in net loss from subsidiaries was increased and total income was reduced by $1.5 million, interest expense on borrowings and total expense were increased by $66 thousand, and net loss and comprehensive loss were increased $1.6 million. Refer to Notes 1 and 19 for further detail.

[2] * The carrying amount and amortized cost are the same for all held-to-maturity securities, as no OTTI has been recorded.

[3] (1) March 31, 2015 and 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 19 for further detail.

[4] (1) Primarily comprised of an investment in a CRA fund with 95% of its underlying investments consisting of government and agency backed securities.