LOANS AND ALLOWANCE - Corporation's nonaccrual loans (Details 5) (Loans Receivable, USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 10,566	$ 9,863
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	76
One-to-four family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	1,979	4,304
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	1,075
Nonresidential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	2,414	2,161
Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	4,693	3,080
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	308	297
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 21	$ 21