Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) (USD $)	Jun. 30, 2012	Jun. 30, 2011	Nov. 24, 2008
Fair Value Measurement [Line Items]
Cash and amounts due from financial institutions	$ 5,840,608	$ 19,138,325
Interest-bearing deposits	114,269,532	130,153,080
Mortgage-backed securities available for sale	15,386,962	4,972,121
Loans receivable, net	541,627,515	547,282,037
Loans receivable held for sale, net	25,062,786	9,392,389
Federal Home Loan Bank stock	12,811,100	12,811,100
Mandatory forward sales contracts	117,718	53,908
Time deposits	(384,566,957)	(420,035,030)
Notes payable	(1,046,111)	(1,152,778)	(1,400,000)
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value Measurement [Line Items]
Mandatory forward sales contracts
Significant Other Observable Inputs (Level 2)
Fair Value Measurement [Line Items]
Mandatory forward sales contracts	117,718	53,908
Significant Unobservable Inputs (Level 3)
Fair Value Measurement [Line Items]
Mandatory forward sales contracts
Carrying Amount
Fair Value Measurement [Line Items]
Cash and amounts due from financial institutions	5,841,000	19,138,000
Interest-bearing deposits	114,270,000	130,153,000
Securities available for sale	23,271,000	8,947,000
Mortgage-backed securities available for sale	15,387,000	4,972,000
Loans receivable, net	541,628,000	547,282,000
Loans receivable held for sale, net	25,063,000	9,392,000
Federal Home Loan Bank stock	12,811,000	12,811,000
Accrued interest receivable	2,047,000	2,204,000
Commitments to make loans intended to be sold	1,773,000	231,000
Mandatory forward sales contracts		54,000
Demand deposits and savings	(271,412,000)	(232,537,000)
Time deposits	(384,567,000)	(420,035,000)
Notes payable	(1,046,000)	(1,153,000)
Advances from the Federal Home Loan Bank	(35,000,000)	(35,000,000)
Mandatory forward sale contract	(118,000)
Accrued interest payable	(120,000)	(119,000)
Estimated Fair Value
Fair Value Measurement [Line Items]
Cash and amounts due from financial institutions	5,841,000	19,138,000
Interest-bearing deposits	114,270,000	130,153,000
Securities available for sale	23,271,000	8,947,000
Mortgage-backed securities available for sale	15,387,000	4,972,000
Loans receivable, net	569,603,000	551,858,000
Loans receivable held for sale, net	25,063,000	9,392,000
Federal Home Loan Bank stock
Accrued interest receivable	2,047,000	2,204,000
Commitments to make loans intended to be sold	1,773,000	231,000
Mandatory forward sales contracts		54,000
Demand deposits and savings	(271,412,000)	(232,537,000)
Time deposits	(385,872,000)	(425,844,000)
Notes payable	(1,046,000)	(1,153,000)
Advances from the Federal Home Loan Bank	(37,222,000)	(37,189,000)
Mandatory forward sale contract	(118,000)
Accrued interest payable	8,000	(119,000)
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value Measurement [Line Items]
Cash and amounts due from financial institutions	5,841,000
Interest-bearing deposits	114,270,000
Federal Home Loan Bank stock
Demand deposits and savings	(271,412,000)
Mandatory forward sale contract	(118,000)
Accrued interest payable	(112,000)
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Fair Value Measurement [Line Items]
Securities available for sale	23,271,000
Mortgage-backed securities available for sale	15,387,000
Loans receivable held for sale, net	25,063,000
Federal Home Loan Bank stock
Accrued interest receivable	174,000
Commitments to make loans intended to be sold	1,773,000
Time deposits	(385,872,000)
Notes payable	(1,046,000)
Advances from the Federal Home Loan Bank	(37,222,000)
Accrued interest payable	8,000
Estimated Fair Value | Significant Unobservable Inputs (Level 3)
Fair Value Measurement [Line Items]
Loans receivable, net	569,603,000
Federal Home Loan Bank stock
Accrued interest receivable	$ 1,873,000