Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended							12 Months Ended
	Mar. 31, 2014	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			$ 10,989				$ 19,821	$ 10,989	$ 19,821	$ 23,147
Allowance for Loan and Lease Losses, Write-offs								4,540	5,903	21,935
Financing Receivable, Allowance for Credit Losses, Recovery								1,210	398	2,267
Provision for loan losses	(300)	505	(831)	3,713	398	(560)	(224)	(426)	(3,327)	16,342
Allowance for loan losses	7,233			10,989				7,233	10,989	19,821
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	5,602			8,678				5,602	8,678
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,631			2,311				1,631	2,311	949
Loans and Leases Receivable, Net of Deferred Income	389,956			370,122				389,956	370,122
Financing Receivable, Collectively Evaluated for Impairment	367,454			339,100				367,454	339,100
Financing Receivable, Individually Evaluated for Impairment	22,502			31,022				22,502	31,022	36,032
One- to four family loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			3,496				4,305	3,496	4,305
Allowance for Loan and Lease Losses, Write-offs								2,887	2,103
Financing Receivable, Allowance for Credit Losses, Recovery								534	15
Provision for loan losses								2,234	1,279
Allowance for loan losses	3,377			3,496				3,377	3,496
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,857			3,179				2,857	3,179
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	520			317				520	317
Loans and Leases Receivable, Net of Deferred Income	112,191			73,987				112,191	73,987
Financing Receivable, Collectively Evaluated for Impairment	105,719			67,619				105,719	67,619
Financing Receivable, Individually Evaluated for Impairment	6,472			6,368				6,472	6,368
Multifamily Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			408				5,409	408	5,409
Allowance for Loan and Lease Losses, Write-offs								98	226
Financing Receivable, Allowance for Credit Losses, Recovery								31	91
Provision for loan losses								(33)	(4,866)
Allowance for loan losses	308			408				308	408
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	216			409				216	409
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	92			0				92	0
Loans and Leases Receivable, Net of Deferred Income	47,525			56,607				47,525	56,607
Financing Receivable, Collectively Evaluated for Impairment	45,285			55,991				45,285	55,991
Financing Receivable, Individually Evaluated for Impairment	2,240			616				2,240	616
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			3,298				6,709	3,298	6,709
Allowance for Loan and Lease Losses, Write-offs								574	1,148
Financing Receivable, Allowance for Credit Losses, Recovery								0	0
Provision for loan losses								(889)	(2,263)
Allowance for loan losses	1,835			3,298				1,835	3,298
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,580			3,103				1,580	3,103
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	255			194				255	194
Loans and Leases Receivable, Net of Deferred Income	198,101			202,771				198,101	202,771
Financing Receivable, Collectively Evaluated for Impairment	189,317			186,336				189,317	186,336
Financing Receivable, Individually Evaluated for Impairment	8,784			16,435				8,784	16,435
Construction Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			0				1,532	0	1,532
Allowance for Loan and Lease Losses, Write-offs								0	151
Financing Receivable, Allowance for Credit Losses, Recovery								149	22
Provision for loan losses								(149)	(1,403)
Allowance for loan losses	0			0				0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	0			0				0	0
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0			0				0	0
Loans and Leases Receivable, Net of Deferred Income	5,070			1,230				5,070	1,230
Financing Receivable, Collectively Evaluated for Impairment	5,070			0				5,070	0
Financing Receivable, Individually Evaluated for Impairment	0			1,230				0	1,230
Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			3,759				1,786	3,759	1,786
Allowance for Loan and Lease Losses, Write-offs								966	2,274
Financing Receivable, Allowance for Credit Losses, Recovery								486	265
Provision for loan losses								(1,574)	3,982
Allowance for loan losses	1,705			3,759				1,705	3,759
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	941			1,959				941	1,959
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	764			1,800				764	1,800
Loans and Leases Receivable, Net of Deferred Income	26,931			35,277				26,931	35,277
Financing Receivable, Collectively Evaluated for Impairment	21,926			28,904				21,926	28,904
Financing Receivable, Individually Evaluated for Impairment	5,005			6,373				5,005	6,373
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			28				80	28	80
Allowance for Loan and Lease Losses, Write-offs								15	1
Financing Receivable, Allowance for Credit Losses, Recovery								10	5
Provision for loan losses								(15)	(56)
Allowance for loan losses	8			28				8	28
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	8			28				8	28
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0			0				0	0
Loans and Leases Receivable, Net of Deferred Income	138			250				138	250
Financing Receivable, Collectively Evaluated for Impairment	137			250				137	250
Financing Receivable, Individually Evaluated for Impairment	$ 1			$ 0				$ 1	$ 0