LOANS AND ALLOWANCE - Corporation's nonaccrual loans (Details 5) (Loans Receivable, USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 11,170	$ 9,863
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	121
One-to-four family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	2,781	4,304
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	1,117
Nonresidential real estate and agricultural land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	2,214	2,161
Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	4,429	3,080
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	508	297
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans		$ 21