Loans - Schedule of Loans by Risk Rating (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014		Jun. 30, 2014
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 509,280		$ 510,648
Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	484,731		485,473
Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	14,249		13,671
Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	10,063		11,153
Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	237		351
Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
First Lien
Financing Receivable, Recorded Investment [Line Items]
Total loans	35,451		36,299
Second Lien
Financing Receivable, Recorded Investment [Line Items]
Total loans	41,813		39,845
One- to Four-Family
Financing Receivable, Recorded Investment [Line Items]
Total loans	107,497	[1]	107,498	[1]
One- to Four-Family | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	104,020		104,221
One- to Four-Family | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	543		523
One- to Four-Family | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,788		2,608
One- to Four-Family | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	146		146
One- to Four-Family | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total loans	202,178		200,750
Commercial Real Estate | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	186,333		184,317
Commercial Real Estate | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	12,892		12,447
Commercial Real Estate | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,953		3,986
Commercial Real Estate | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Commercial Real Estate | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Home equity: | First Lien
Financing Receivable, Recorded Investment [Line Items]
Total loans	35,451		36,299
Home equity: | First Lien | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	35,425		36,299
Home equity: | First Lien | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Home equity: | First Lien | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	26		0
Home equity: | First Lien | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Home equity: | First Lien | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Home equity: | Second Lien
Financing Receivable, Recorded Investment [Line Items]
Total loans	41,813		39,845
Home equity: | Second Lien | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	41,633		39,688
Home equity: | Second Lien | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	10		7
Home equity: | Second Lien | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	170		150
Home equity: | Second Lien | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Home equity: | Second Lien | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Residential Construction
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,790		3,807
Residential Construction | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,790		3,807
Residential Construction | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Residential Construction | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Residential Construction | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Residential Construction | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Commercial Construction
Financing Receivable, Recorded Investment [Line Items]
Total loans	34,405		36,189
Commercial Construction | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	34,130		36,189
Commercial Construction | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	275		0
Commercial Construction | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Commercial Construction | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Commercial Construction | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Commercial
Financing Receivable, Recorded Investment [Line Items]
Total loans	52,399		54,756
Commercial | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	47,899		49,874
Commercial | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	430		533
Commercial | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,070		4,349
Commercial | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Commercial | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Manufactured homes
Financing Receivable, Recorded Investment [Line Items]
Total loans	22,157		21,766
Manufactured homes | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	21,916		21,342
Manufactured homes | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	99		160
Manufactured homes | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	51		59
Manufactured homes | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	91		205
Manufactured homes | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Automobile and other secured loans
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,680		7,172
Automobile and other secured loans | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,680		7,172
Automobile and other secured loans | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Automobile and other secured loans | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Automobile and other secured loans | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Automobile and other secured loans | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Other
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,910		2,566
Other | Loans rated 1-5
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,905		2,564
Other | Loans rated 6
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		1
Other | Loans rated 7
Financing Receivable, Recorded Investment [Line Items]
Total loans	5		1
Other | Loans rated 8
Financing Receivable, Recorded Investment [Line Items]
Total loans	0		0
Other | Loans rated 9
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 0		$ 0

[1] Excludes loans held for sale of $1.4 million and $330,000 at September 30, 2014 and June 30, 2014, respectively.