LOANS AND ALLOWANCE - troubled debt restructurings by class (Details 8) (Loans Receivable, USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012 Loans	Sep. 30, 2011 Loans	Sep. 30, 2012 Loans	Sep. 30, 2011 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of troubled debt restructuring	26	17	26	17
Total Troubled Debt Restructured	$ 9,746	$ 9,474	$ 9,746	$ 9,474
Number of Loans	4	2	12	6
Current Balance	162	1,003	2,436	3,975
Pre-Modification Recorded Balance	109	1,005	2,550	3,923
Post-Modification Recorded Balance	141	1,003	2,642	4,011
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of troubled debt restructuring	1		1
Total Troubled Debt Restructured	121		121
Number of Loans	1		1
Current Balance	121		121
Pre-Modification Recorded Balance	76		76
Post-Modification Recorded Balance	100		100
One-to-four family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of troubled debt restructuring	11	8	11	8
Total Troubled Debt Restructured	4,113	3,197	4,113	3,197
Number of Loans		2	5	2
Current Balance		1,003	1,047	1,003
Pre-Modification Recorded Balance		1,005	1,204	1,005
Post-Modification Recorded Balance		1,003	1,249	1,003
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of troubled debt restructuring	1	1	1	1
Total Troubled Debt Restructured	1,063	1,974	1,063	1,974
Number of Loans			1	1
Current Balance			1,063	1,974
Pre-Modification Recorded Balance			1,068	1,735
Post-Modification Recorded Balance			1,082	1,987
Nonresidential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of troubled debt restructuring	5	4	5	4
Total Troubled Debt Restructured	2,323	2,076	2,323	2,076
Number of Loans				1
Current Balance				956
Pre-Modification Recorded Balance				1,118
Post-Modification Recorded Balance				956
Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of troubled debt restructuring	1	1	1	1
Total Troubled Debt Restructured	1,886	2,137	1,886	2,137
Number of Loans
Current Balance
Pre-Modification Recorded Balance
Post-Modification Recorded Balance
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of troubled debt restructuring	6	2	6	2
Total Troubled Debt Restructured	226	71	226	71
Number of Loans	3		5	1
Current Balance	41		205	23
Pre-Modification Recorded Balance	33		202	46
Post-Modification Recorded Balance	41		211	46
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of troubled debt restructuring	1	1	1	1
Total Troubled Debt Restructured	14	19	14	19
Number of Loans				1
Current Balance				19
Pre-Modification Recorded Balance				19
Post-Modification Recorded Balance				$ 19