Investment Securities Investment Securities Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands		9 Months Ended		12 Months Ended
		Dec. 31, 2016		Mar. 31, 2016
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity, Amortized Cost	[1]	$ 13,913		$ 15,311
Held-to-maturity, Gross Unrealized Gains	[1]	132		342
Held-to-maturity, Gross Unrealized Losses	[1]	138		0
Held-to-maturity, Fair Value	[1]	13,907		15,653
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Amortized Cost		62,125		56,486
Available-for-sale, Gross Unrealized Gains		0		72
Available-for-sale, Gross Unrealized Losses		2,101		378
Available-for-sale, Fair Value		60,024		56,180
securities amortized cost		76,038		71,797
Unrealized Gain on Securities		132		414
Unrealized Loss on Securities		2,239		378
Investments, Fair Value Disclosure		73,931		71,833
Government National Mortgage Association
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Amortized Cost		2,631		4,578
Available-for-sale, Gross Unrealized Gains		0		45
Available-for-sale, Gross Unrealized Losses		83		0
Available-for-sale, Fair Value		2,548		4,623
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Amortized Cost		8,275		7,778
Available-for-sale, Gross Unrealized Gains		0		0
Available-for-sale, Gross Unrealized Losses		207		100
Available-for-sale, Fair Value		8,068		7,678
Federal National Mortgage Association
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Amortized Cost		27,856		7,860
Available-for-sale, Gross Unrealized Gains		0		0
Available-for-sale, Gross Unrealized Losses		1,005		36
Available-for-sale, Fair Value		26,851		7,824
Mortgage Backed Securities, Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Amortized Cost		45		45
Available-for-sale, Gross Unrealized Gains		0		0
Available-for-sale, Gross Unrealized Losses		0		0
Available-for-sale, Fair Value		45		45
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Amortized Cost		38,807		20,261
Available-for-sale, Gross Unrealized Gains		0		45
Available-for-sale, Gross Unrealized Losses		1,295		136
Available-for-sale, Fair Value		37,512		20,170
US Government Agency Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Amortized Cost		7,848		26,077
Available-for-sale, Gross Unrealized Gains		0		27
Available-for-sale, Gross Unrealized Losses		125		35
Available-for-sale, Fair Value		7,723		26,069
Corporate Bond Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Amortized Cost		5,110
Available-for-sale, Gross Unrealized Gains		0
Available-for-sale, Gross Unrealized Losses		185
Available-for-sale, Fair Value		4,925
Other
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Amortized Cost		10,360	[2]	10,148	[3]
Available-for-sale, Gross Unrealized Gains		0	[2]	0	[3]
Available-for-sale, Gross Unrealized Losses		496	[2]	207	[3]
Available-for-sale, Fair Value		9,864	[2]	9,941	[3]
Government National Mortgage Association
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity, Amortized Cost	[1]	1,988		2,379
Held-to-maturity, Gross Unrealized Gains	[1]	109		150
Held-to-maturity, Gross Unrealized Losses	[1]	0		0
Held-to-maturity, Fair Value	[4]	2,097		2,529
Federal National Mortgage Association
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity, Amortized Cost	[1]	10,925		11,932
Held-to-maturity, Gross Unrealized Gains	[1]	0		192
Held-to-maturity, Gross Unrealized Losses	[1]	138		0
Held-to-maturity, Fair Value	[4]	10,787		12,124
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity, Amortized Cost	[1]	12,913		14,311
Held-to-maturity, Gross Unrealized Gains	[1]	109		342
Held-to-maturity, Gross Unrealized Losses	[1]	138		0
Held-to-maturity, Fair Value	[1]	12,884		14,653
Corporate Bond Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity, Amortized Cost		1,000	[1]	1,000
Held-to-maturity, Gross Unrealized Gains	[1]	23		0
Held-to-maturity, Gross Unrealized Losses		0	[1]	0	[4]
Held-to-maturity, Fair Value	[4]	$ 1,023		$ 1,000

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

[2] (1) CRA fund comprised of over 95% agency securities.

[3] (1) Primarily comprised of CRA fund of over 95% agency securities.

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