Fair Value - Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) (USD $)	Jun. 30, 2013	Jun. 30, 2012	Nov. 24, 2008
Assets:
Cash and amounts due from financial institutions	$ 22,759,665	$ 5,840,608
Interest-bearing deposits	77,825,249	114,269,532
Loans receivable, net	535,818,400	541,627,515
Loans receivable held for sale, net	28,835,018	25,062,786
Federal Home Loan Bank stock	12,811,100	12,811,100
Mandatory forward sale contract	573,401	(117,718)
Liabilities:
Time deposits	(326,763,923)	(384,566,957)
Notes payable	(939,445)	(1,046,111)	(1,400,000)
Carrying value [Member]
Assets:
Cash and amounts due from financial institutions	22,760,000	5,841,000
Interest-bearing deposits	77,825,000	114,270,000
Securities available for sale	49,151,000	38,658,000
Loans receivable, net	535,818,000	541,628,000
Loans receivable held for sale, net	28,835,000	25,063,000
Federal Home Loan Bank stock	12,811,000	12,811,000
Accrued interest receivable	1,944,000	2,047,000
Commitments to make loans intended to be sold	118,000	1,773,000
Mandatory forward sale contract	573,000
Liabilities:
Demand deposits and savings	(303,850,000)	(271,412,000)
Time deposits	(326,764,000)	(384,567,000)
Notes payable	(939,000)	(1,046,000)
Advances from the Federal Home Loan Bank	(35,000,000)	(35,000,000)
Mandatory forward sale contract		(118,000)
Accrued interest payable	(116,000)	(120,000)
Fair value measurements [Member]
Assets:
Cash and amounts due from financial institutions	22,760,000	5,841,000
Interest-bearing deposits	77,825,000	114,270,000
Securities available for sale	49,151,000	38,658,000
Loans receivable, net	561,101,000	569,603,000
Loans receivable held for sale, net	28,835,000	25,063,000
Federal Home Loan Bank stock
Accrued interest receivable	1,944,000	2,047,000
Commitments to make loans intended to be sold	118,000	1,773,000
Mandatory forward sale contract	573,000
Liabilities:
Demand deposits and savings	(303,850,000)	(271,412,000)
Time deposits	(327,789,000)	(385,872,000)
Notes payable	(939,000)	(1,046,000)
Advances from the Federal Home Loan Bank	(36,561,000)	(37,222,000)
Mandatory forward sale contract		(118,000)
Accrued interest payable	(116,000)	(120,000)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Mandatory forward sale contract
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair value measurements [Member]
Assets:
Cash and amounts due from financial institutions	22,760,000	5,841,000
Interest-bearing deposits	77,825,000	114,270,000
Federal Home Loan Bank stock
Mandatory forward sale contract	573,000
Liabilities:
Demand deposits and savings	(303,850,000)	(271,412,000)
Mandatory forward sale contract		(118,000)
Accrued interest payable	(31,000)	(112,000)
Significant Other Observable Inputs (Level 2) [Member]
Assets:
Mandatory forward sale contract	573,401	(117,718)
Significant Other Observable Inputs (Level 2) [Member] | Fair value measurements [Member]
Assets:
Securities available for sale	49,151,000	38,658,000
Loans receivable held for sale, net	28,835,000	25,063,000
Federal Home Loan Bank stock
Accrued interest receivable	126,000	174,000
Commitments to make loans intended to be sold	118,000	1,773,000
Liabilities:
Time deposits	(327,789,000)	(385,872,000)
Notes payable	(939,000)	(1,046,000)
Advances from the Federal Home Loan Bank	(36,561,000)	(37,222,000)
Accrued interest payable	(85,000)	(8,000)
Significant Unobservable Inputs (Level 3) [Member]
Assets:
Mandatory forward sale contract
Significant Unobservable Inputs (Level 3) [Member] | Fair value measurements [Member]
Assets:
Loans receivable, net	561,101,000	569,603,000
Federal Home Loan Bank stock
Accrued interest receivable	$ 1,818,000	$ 1,873,000