Loans and Allowance for Loan Losses - Loan Balances by Internal Credit Quality Indicator (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Mar. 31, 2014 Segment	Jun. 30, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Bank segments	4
Loans and Leases Receivable, Gross, Carrying Amount	$ 399,007	$ 365,839
Residential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Maximum loan-to-value ratio (in hundredths)	80.00%
Loans and Leases Receivable, Gross, Carrying Amount	226,310	212,526
Residential Mortgage With Private Mortgage Insurance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Maximum loan-to-value ratio (in hundredths)	95.00%
Nonresidential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	108,004	91,482
Residential construction and land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3,229	2,691
Commercial construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	2,517	3,523
Multi-family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	4,112	5,511
Home Equity Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	20,493	20,371
Consumer installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	4,078	4,078
Commercial loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	30,264	25,657
Performing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	387,513	353,683
Performing [Member] | Residential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	221,735	207,606
Performing [Member] | Nonresidential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	102,830	87,509
Performing [Member] | Residential construction and land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3,229	2,691
Performing [Member] | Commercial construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	2,517	2,466
Performing [Member] | Multi-family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3,998	4,785
Performing [Member] | Home Equity Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	20,154	20,099
Performing [Member] | Consumer installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	4,075	4,073
Performing [Member] | Commercial loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	28,975	24,454
Watch [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	128	520
Watch [Member] | Residential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	128	294
Watch [Member] | Nonresidential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Watch [Member] | Residential construction and land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Watch [Member] | Commercial construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Watch [Member] | Multi-family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Watch [Member] | Home Equity Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	221
Watch [Member] | Consumer installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	5
Watch [Member] | Commercial loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	4,121	3,038
Special Mention [Member] | Residential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	298	302
Special Mention [Member] | Nonresidential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3,240	2,197
Special Mention [Member] | Residential construction and land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Special Mention [Member] | Commercial construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Special Mention [Member] | Multi-family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Special Mention [Member] | Home Equity Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	23
Special Mention [Member] | Consumer installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Special Mention [Member] | Commercial loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	583	516
Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	7,245	8,598
Substandard [Member] | Residential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	4,149	4,324
Substandard [Member] | Nonresidential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,934	1,776
Substandard [Member] | Residential construction and land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Substandard [Member] | Commercial construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	1,057
Substandard [Member] | Multi-family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	114	726
Substandard [Member] | Home Equity Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	339	28
Substandard [Member] | Consumer installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3	0
Substandard [Member] | Commercial loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	$ 706	$ 687