EMPLOYEE BENEFITS (Details 4) (USD $)	Dec. 31, 2012
Stock options outstanding by range of exercise prices
Number of options (in shares)	49,962
Exercise Price Range, one
Stock options outstanding by range of exercise prices
Number of options (in shares)	600
Exercise Price (in dollars per share)	15.47
Exercise Price Range, two
Stock options outstanding by range of exercise prices
Number of options (in shares)	4,572
Exercise Price (in dollars per share)	24.00
Exercise Price Range, three
Stock options outstanding by range of exercise prices
Number of options (in shares)	39,659
Exercise Price (in dollars per share)	25.25
Exercise Price Range, four
Stock options outstanding by range of exercise prices
Number of options (in shares)	3,000
Exercise Price (in dollars per share)	26.55
Exercise Price Range, five
Stock options outstanding by range of exercise prices
Number of options (in shares)	2,131
Exercise Price (in dollars per share)	30.60