Fair Value Measurements and Fair Value of Financial Instruments, Carrying Amount and Estimated Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, Carrying Amount	$ 24,823	$ 13,809	$ 55,599	$ 6,222
Long term certificate of deposit, Carrying Amount	1,230	250
Securities available for sale, Carrying Amount	72,207	56,151
Securities held to maturity, Carrying Amount	177,973	181,946
Federal Home Loan Bank stock, Carrying Amount	1,354	1,561
Net loans, Carrying Amount	435,310	399,309
Accrued interest receivable, Carrying Amount	3,204	2,710
Deposits, Carrying Amount	644,841	589,574
Federal Home Loan Bank borrowings, Carrying Amount	17,300	17,650
Accrued Interest Payable, Carrying Amount	70	66
Cash and cash equivalents, Fair Value	24,823	13,809
Long term certificate of deposit, Fair Value	1,230	250
Securities available for sale, at fair value	72,207	56,151
Securities held-to-maturity, Fair Value	180,266	181,932
Federal Home Loan Bank stock, Fair Value	1,354	1,561
Net loans, Fair Value	444,602	406,718
Accrued interest receivable, Fair Value	3,204	2,710
Deposits, Fair Value	644,691	589,681
Federal Home Loan Bank borrowings, Fair Value	17,294	17,465
Accrued interest payable, Fair Value	70	66
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, Carrying Amount	4,966	5,343
Cash and cash equivalents, Fair Value	24,823	13,809
Long term certificate of deposit, Fair Value	1,230	250
Securities available for sale, at fair value	4,966	5,343
Securities held-to-maturity, Fair Value	0	0
Federal Home Loan Bank stock, Fair Value	0	0
Net loans, Fair Value	0	0
Accrued interest receivable, Fair Value	0	0
Deposits, Fair Value	0	0
Federal Home Loan Bank borrowings, Fair Value	0	0
Accrued interest payable, Fair Value	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, Carrying Amount	67,241	50,808
Cash and cash equivalents, Fair Value	0	0
Long term certificate of deposit, Fair Value	0	0
Securities available for sale, at fair value	67,241	50,808
Securities held-to-maturity, Fair Value	180,266	181,932
Federal Home Loan Bank stock, Fair Value	1,354	1,561
Net loans, Fair Value	0	0
Accrued interest receivable, Fair Value	3,204	2,710
Deposits, Fair Value	644,691	589,681
Federal Home Loan Bank borrowings, Fair Value	17,294	17,465
Accrued interest payable, Fair Value	70	66
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, Carrying Amount	0	0
Cash and cash equivalents, Fair Value	0	0
Long term certificate of deposit, Fair Value	0	0
Securities available for sale, at fair value	0	0
Securities held-to-maturity, Fair Value	0	0
Federal Home Loan Bank stock, Fair Value	0	0
Net loans, Fair Value	444,602	406,718
Accrued interest receivable, Fair Value	0	0
Deposits, Fair Value	0	0
Federal Home Loan Bank borrowings, Fair Value	0	0
Accrued interest payable, Fair Value	$ 0	$ 0