Fair Value Measurements and Fair Value of Financial Instruments - Carrying Amount and Estimated Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, Carrying Amount	$ 13,809	$ 6,222	$ 7,742
Long term certificate of deposit, Carrying Amount	250	250
Securities available for sale, Carrying Amount	56,151	69,644
Securities held to maturity, at amortized cost (fair value $181,932 at June 30, 2014; $177,660 at June 30, 2013)	181,946	176,519
Federal Home Loan Bank stock, Carrying Amount	1,561	1,388
Net loans, Carrying Amount	399,309	359,426
Accrued interest receivable, Carrying Amount	2,710	2,663
Deposits, Carrying Amount	589,574	558,439
Federal Home Loan Bank borrowings, Carrying Amount	17,650	14,600
Accrued Interest Payable, Carrying Amount	66	55
Cash and cash equivalents	13,809	6,222
Long term certificate of deposit	250	250
Securities available for sale, at fair value	56,151	69,644
Securities held to maturity, fair value	181,932	177,660
Federal Home Loan Bank stock	1,561	1,388
Net loans	406,718	367,377
Accrued interest receivable	2,710	2,663
Deposits	589,681	558,517
Federal Home Loan Bank borrowings	17,465	14,378
Accrued interest payable	66	55
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, Carrying Amount	5,343	5,345
Cash and cash equivalents	13,809	6,222
Long term certificate of deposit	250	250
Securities available for sale, at fair value	5,343	5,345
Securities held to maturity, fair value	0	0
Federal Home Loan Bank stock	0	0
Net loans	0	0
Accrued interest receivable	0	0
Deposits	0	0
Federal Home Loan Bank borrowings	0	0
Accrued interest payable	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, Carrying Amount	50,808	64,299
Cash and cash equivalents	0	0
Long term certificate of deposit	0	0
Securities available for sale, at fair value	50,808	64,299
Securities held to maturity, fair value	181,932	177,660
Federal Home Loan Bank stock	1,561	1,388
Net loans	0	0
Accrued interest receivable	2,710	2,663
Deposits	589,681	558,517
Federal Home Loan Bank borrowings	17,465	14,378
Accrued interest payable	66	55
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	0	0
Long term certificate of deposit	0	0
Securities available for sale, at fair value	0	0
Securities held to maturity, fair value	0	0
Federal Home Loan Bank stock	0	0
Net loans	406,718	367,377
Accrued interest receivable	0	0
Deposits	0	0
Federal Home Loan Bank borrowings	0	0
Accrued interest payable	$ 0	$ 0