Fair Value Measurements and Fair Value of Financial Instruments (Carrying Amount and Estimated Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, Carrying Amount	$ 38,428	$ 7,742	$ 30,876	$ 9,966
Long term certificate of deposit, Carrying Amount	250
Securities available for sale, Carrying Amount	76,840	87,528
Securities held to maturity, at amortized cost	162,207	146,389
Federal Home Loan Bank stock, Carrying Amount	979	1,744
Net loans, Carrying Amount	350,095	326,751
Accrued interest receivable, Carrying Amount	2,875	2,688
Deposits, Carrying Amount	586,718	511,937
Federal Home Loan Bank borrowings, Carrying Amount	4,000	21,000
Accrued Interest Payable, Carrying Amount	52	83
Cash and cash equivalents	38,428	7,742
Long term certificate of deposit	250
Securities available-for-sale	76,840	87,528
Securities held-to-maturity	165,784	150,162
Federal Home Loan Bank stock	979	1,744
Net loans	363,021	341,263
Accrued interest receivable	2,875	2,688
Deposits	586,886	512,154
Federal Home Loan Bank borrowings	3,993	21,264
Accrued interest payable	52	83
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	38,428	7,742
Long term certificate of deposit	250
Securities available-for-sale	5,157	5,462
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	71,683	82,066
Securities held-to-maturity	165,784	150,162
Federal Home Loan Bank stock	979	1,744
Accrued interest receivable	2,875	2,688
Deposits	586,886	512,154
Federal Home Loan Bank borrowings	3,993	21,264
Accrued interest payable	52	83
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans	$ 363,021	$ 341,263