DERIVATIVES (Details) (Interest rate swap related to FHLB Advance, Derivative designated as a cash flow hedge, USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Jun. 28, 2012
Interest rate swap related to FHLB Advance | Derivative designated as a cash flow hedge
Derivatives
Notional amounts	$ 15,000,000	$ 15,000,000	$ 15,000,000
Weighted average pay rates (as a percent)	0.99%	0.99%
Weighted average receive rates (as a percent)	0.28%	0.31%
Weighted average maturity	4 years 2 months 26 days	4 years 5 months 26 days
Unrealized gains (losses)	(148,000)	(176,000)
Interest expense on derivative	$ 25,000