Fair Value of Financial Instruments - Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Financial assets:
Cash and cash equivalents	$ 12,667	$ 25,618	$ 27,923	$ 31,147
Securities available for sale, at fair value	133,936	138,730
Securities held to maturity, at cost	9,302	0
Federal Home Loan Bank stock	6,648	5,092
Loans held for sale	330	1,274
Loans, net	507,635	450,347
Accrued interest receivable	1,688	1,636
Financial liabilities:
Deposits	491,732	474,798
Short-term borrowings	4,000	4,500
Long-term debt	112,446	82,492
Mortgagors' escrow accounts	1,184	1,100
Level 1
Financial assets:
Cash and cash equivalents	12,667	25,618
Securities available for sale, at fair value	79	68
Securities held to maturity, at cost	0
Federal Home Loan Bank stock	0	0
Loans held for sale	0	0
Loans, net	0	0
Accrued interest receivable	0	0
Mortgage servicing rights	0	0
Financial liabilities:
Deposits	0	0
Short-term borrowings	0	0
Long-term debt	0	0
Mortgagors' escrow accounts	0	0
Level 2
Financial assets:
Cash and cash equivalents	0	0
Securities available for sale, at fair value	133,857	138,662
Securities held to maturity, at cost	0
Federal Home Loan Bank stock	0	0
Loans held for sale	330	1,274
Loans, net	0	0
Accrued interest receivable	0	0
Mortgage servicing rights	0	0
Financial liabilities:
Deposits	0	0
Short-term borrowings	4,000	4,500
Long-term debt	113,823	82,527
Mortgagors' escrow accounts	0	0
Level 3
Financial assets:
Cash and cash equivalents	0	0
Securities available for sale, at fair value	0	0
Securities held to maturity, at cost	9,302
Federal Home Loan Bank stock	6,648	5,092
Loans held for sale	0	0
Loans, net	513,765	459,018
Accrued interest receivable	1,688	1,636
Mortgage servicing rights	792	654
Financial liabilities:
Deposits	493,500	477
Short-term borrowings	0	0
Long-term debt	0	0
Mortgagors' escrow accounts	1,184	1,100
Carrying Amount
Financial assets:
Cash and cash equivalents	12,667	25,618
Securities available for sale, at fair value	133,936	138,730
Securities held to maturity, at cost	9,302
Federal Home Loan Bank stock	6,648	5,092
Loans held for sale	330	1,274
Loans, net	507,635	450,347
Accrued interest receivable	1,688	1,636
Mortgage servicing rights	792	654
Financial liabilities:
Deposits	491,732	475
Short-term borrowings	4,000	4,500
Long-term debt	112,446	82,492
Mortgagors' escrow accounts	1,184	1,100
Fair Value
Financial assets:
Cash and cash equivalents	12,667	25,618
Securities available for sale, at fair value	133,936	138,730
Securities held to maturity, at cost	9,302
Federal Home Loan Bank stock	6,648	5,092
Loans held for sale	330	1,274
Loans, net	513,765	459,018
Accrued interest receivable	1,688	1,636
Mortgage servicing rights	792	654
Financial liabilities:
Deposits	493,500	477
Short-term borrowings	4,000	4,500
Long-term debt	113,823	82,527
Mortgagors' escrow accounts	$ 1,184	$ 1,100