Loans and Allowance for Loan Losses - Activity and Allocation of Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Jun. 30, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	$ 7,171	$ 6,764	$ 7,040	$ 6,177
Charge-offs	149	201	875	641
Recoveries	31	28	67	70
Provision	288	331	1,109	1,316
Allowance for Loan Losses, Ending Balance	7,341	6,922	7,341	6,922
Allowance for loan losses: Ending balance: individually evaluated for impairment	1,061		1,061		1,179
Allowance for loan losses: Ending balance: collectively evaluated for impairment	6,280		6,280		5,861
Loans receivables: Ending balance: individually evaluated for impairment	7,440		7,440		7,686
Loans Receivable: Ending balance: collectively evaluated for impairment	391,567		391,567		358,153
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	2,772	2,429	2,627	2,163
Charge-offs	62	13	344	286
Recoveries	1	0	1	0
Provision	29	74	456	613
Allowance for Loan Losses, Ending Balance	2,740	2,490	2,740	2,490
Allowance for loan losses: Ending balance: individually evaluated for impairment	580		580		520
Allowance for loan losses: Ending balance: collectively evaluated for impairment	2,160		2,160		2,107
Loans receivables: Ending balance: individually evaluated for impairment	3,350		3,350		3,434
Loans Receivable: Ending balance: collectively evaluated for impairment	222,960		222,960		209,092
Nonresidential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	2,740	2,246	2,476	2,076
Charge-offs	0	119	87	139
Recoveries	0	0	0	0
Provision	105	178	456	368
Allowance for Loan Losses, Ending Balance	2,845	2,305	2,845	2,305
Allowance for loan losses: Ending balance: individually evaluated for impairment	391		391		305
Allowance for loan losses: Ending balance: collectively evaluated for impairment	2,454		2,454		2,171
Loans receivables: Ending balance: individually evaluated for impairment	3,285		3,285		2,122
Loans Receivable: Ending balance: collectively evaluated for impairment	104,719		104,719		89,360
Residential construction and land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	47	43	37	19
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(2)	(15)	8	9
Allowance for Loan Losses, Ending Balance	45	28	45	28
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	45		45		37
Loans receivables: Ending balance: individually evaluated for impairment	0		0		0
Loans Receivable: Ending balance: collectively evaluated for impairment	3,229		3,229		2,691
Commercial construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	86	391	392	407
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(24)	24	(330)	8
Allowance for Loan Losses, Ending Balance	62	415	62	415
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		331
Allowance for loan losses: Ending balance: collectively evaluated for impairment	62		62		61
Loans receivables: Ending balance: individually evaluated for impairment	0		0		1,057
Loans Receivable: Ending balance: collectively evaluated for impairment	2,517		2,517		2,466
Multi-family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	107	286	139	337
Charge-offs	0	0	24	0
Recoveries	7	0	7	0
Provision	(53)	(21)	(61)	(72)
Allowance for Loan Losses, Ending Balance	61	265	61	265
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		16
Allowance for loan losses: Ending balance: collectively evaluated for impairment	61		61		123
Loans receivables: Ending balance: individually evaluated for impairment	0		0		463
Loans Receivable: Ending balance: collectively evaluated for impairment	4,112		4,112		5,048
Home Equity Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	360	361	275	187
Charge-offs	36	0	44	0
Recoveries	0	0	0	0
Provision	48	(84)	141	90
Allowance for Loan Losses, Ending Balance	372	277	372	277
Allowance for loan losses: Ending balance: individually evaluated for impairment	87		87		0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	285		285		275
Loans receivables: Ending balance: individually evaluated for impairment	200		200		0
Loans Receivable: Ending balance: collectively evaluated for impairment	20,293		20,293		20,371
Consumer installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	243	281	222	207
Charge-offs	51	69	171	201
Recoveries	23	28	55	70
Provision	(11)	(37)	98	127
Allowance for Loan Losses, Ending Balance	204	203	204	203
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	204		204		222
Loans receivables: Ending balance: individually evaluated for impairment	0		0		0
Loans Receivable: Ending balance: collectively evaluated for impairment	4,078		4,078		4,078
Commercial loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	773	727	809	645
Charge-offs	0	0	205	15
Recoveries	0	0	4	0
Provision	17	47	182	144
Allowance for Loan Losses, Ending Balance	790	774	790	774
Allowance for loan losses: Ending balance: individually evaluated for impairment	3		3		7
Allowance for loan losses: Ending balance: collectively evaluated for impairment	787		787		802
Loans receivables: Ending balance: individually evaluated for impairment	605		605		610
Loans Receivable: Ending balance: collectively evaluated for impairment	29,659		29,659		25,047
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	43	0	63	136
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	179	165	159	29
Allowance for Loan Losses, Ending Balance	222	165	222	165
Allowance for loan losses: Ending balance: individually evaluated for impairment	0		0		0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	222		222		63
Loans receivables: Ending balance: individually evaluated for impairment	0		0		0
Loans Receivable: Ending balance: collectively evaluated for impairment	$ 0		$ 0		$ 0