STOCK-BASED COMPENSATION (Details 2) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Beginning Period, Nonvested	23,569	8,113
Number of Shares, Granted	13,656	23,281
Number of Shares, Vested	(16,678)	(7,825)
Ending Period, Nonvested	20,547	23,569
Beginning Period, Weighted Average Grant Date Fair Value, Nonvested	$ 15.64	$ 16.47
Weighted Average Grant Date Fair Value, Granted	$ 18	$ 15.21
Weighted Average Grant Date Fair Value, Vested	$ 16.35	$ 15.2
Ending Period, Weighted Average Grant Date Fair Value, Nonvested	$ 16.63	$ 15.64
Restricted Stock Units (Rsus) [Member]
Beginning Period, Nonvested	5,211	6,845
Number of Shares, Granted	2,105	2,105
Number of Shares, Vested	(3,106)	(3,739)
Ending Period, Nonvested	4,210	5,211
Beginning Period, Weighted Average Grant Date Fair Value, Nonvested	$ 15.98	$ 15
Weighted Average Grant Date Fair Value, Granted	$ 16.87	$ 15.98
Weighted Average Grant Date Fair Value, Vested	$ 15.98	$ 14.8
Ending Period, Weighted Average Grant Date Fair Value, Nonvested	$ 16.5	$ 15.98