Loans and Allowance for Loan Losses - Activity and Allocation of Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	$ 7,720	$ 7,028	$ 7,419	$ 7,040
Charge-offs	240	386	369	726
Recoveries	11	21	30	36
Provision	305us-gaap_ProvisionForLoanAndLeaseLosses	508us-gaap_ProvisionForLoanAndLeaseLosses	716us-gaap_ProvisionForLoanAndLeaseLosses	821us-gaap_ProvisionForLoanAndLeaseLosses
Allowance for Loan Losses, Ending Balance	7,796	7,171	7,796	7,171
Allowance for loan losses: Ending balance: individually evaluated for impairment	789		789		869
Allowance for loan losses: Ending balance: collectively evaluated for impairment	7,007		7,007		6,550
Loans receivables: Ending balance: individually evaluated for impairment	6,463		6,463		6,838
Loans Receivable: Ending balance: collectively evaluated for impairment	423,165		423,165		399,003
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	2,647	2,558	2,731	2,627
Charge-offs	168	205	242	282
Recoveries	0	0	0	0
Provision	110	419	100	427
Allowance for Loan Losses, Ending Balance	2,589	2,772	2,589	2,772
Allowance for loan losses: Ending balance: individually evaluated for impairment	363		363		441
Allowance for loan losses: Ending balance: collectively evaluated for impairment	2,226		2,226		2,290
Loans receivables: Ending balance: individually evaluated for impairment	2,795		2,795		2,906
Loans Receivable: Ending balance: collectively evaluated for impairment	223,967		223,967		224,467
Nonresidential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	3,164	2,622	2,936	2,476
Charge-offs	0	87	0	87
Recoveries	0	0	0	0
Provision	303	205	531	351
Allowance for Loan Losses, Ending Balance	3,467	2,740	3,467	2,740
Allowance for loan losses: Ending balance: individually evaluated for impairment	333		333		338
Allowance for loan losses: Ending balance: collectively evaluated for impairment	3,134		3,134		2,598
Loans receivables: Ending balance: individually evaluated for impairment	2,869		2,869		3,033
Loans Receivable: Ending balance: collectively evaluated for impairment	124,374		124,374		111,033
Residential construction and land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	41	46	42	37
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	10	1	9	10
Allowance for Loan Losses, Ending Balance	51	47	51	47
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	51		51		42
Loans receivables: Ending balance: individually evaluated for impairment	0		0		0
Loans Receivable: Ending balance: collectively evaluated for impairment	3,651		3,651		3,005
Commercial construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	109	356	38	392
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	39	(270)	110	(306)
Allowance for Loan Losses, Ending Balance	148	86	148	86
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	148		148		38
Loans receivables: Ending balance: individually evaluated for impairment	0		0		0
Loans Receivable: Ending balance: collectively evaluated for impairment	5,686		5,686		1,558
Multi-family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	45	110	59	139
Charge-offs	0	24	0	24
Recoveries	0	0	0	0
Provision	(1)	21	(15)	(8)
Allowance for Loan Losses, Ending Balance	44	107	44	107
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	44		44		59
Loans receivables: Ending balance: individually evaluated for impairment	0		0		0
Loans Receivable: Ending balance: collectively evaluated for impairment	4,456		4,456		4,059
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	376	293	361	275
Charge-offs	0	8	0	8
Recoveries	0	0	0	0
Provision	(4)	75	11	93
Allowance for Loan Losses, Ending Balance	372	360	372	360
Allowance for loan losses: Ending balance: individually evaluated for impairment	90		90		87
Allowance for loan losses: Ending balance: collectively evaluated for impairment	282		282		274
Loans receivables: Ending balance: individually evaluated for impairment	200		200		296
Loans Receivable: Ending balance: collectively evaluated for impairment	20,872		20,872		20,282
Consumer installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	243	221	240	222
Charge-offs	66	61	121	120
Recoveries	5	17	24	32
Provision	62	66	101	109
Allowance for Loan Losses, Ending Balance	244	243	244	243
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	244		244		240
Loans receivables: Ending balance: individually evaluated for impairment	0		0		0
Loans Receivable: Ending balance: collectively evaluated for impairment	4,105		4,105		4,208
Commercial loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	831	822	811	809
Charge-offs	6	1	6	205
Recoveries	6	4	6	4
Provision	50	(52)	70	165
Allowance for Loan Losses, Ending Balance	881	773	881	773
Allowance for loan losses: Ending balance: individually evaluated for impairment	3		3		3
Allowance for loan losses: Ending balance: collectively evaluated for impairment	878		878		808
Loans receivables: Ending balance: individually evaluated for impairment	599		599		603
Loans Receivable: Ending balance: collectively evaluated for impairment	36,054		36,054		30,391
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	264	0	201	63
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(264)	43	(201)	(20)
Allowance for Loan Losses, Ending Balance	0	43	0	43
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	0		0		201
Loans receivables: Ending balance: individually evaluated for impairment	0		0		0
Loans Receivable: Ending balance: collectively evaluated for impairment	$ 0		$ 0		$ 0

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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-Name Accounting Standards Codification

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount of direct write-downs of financing receivables charged against the allowance.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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