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COMMON STOCK (Details) - USD ($)
1 Months Ended 6 Months Ended
Mar. 31, 2009
Mar. 31, 2009
Jun. 30, 2015
Dec. 31, 2008
COMMON STOCK [Abstract]        
Common stock authorized by the Board of Directors (in shares)       2,250,000
Maximum percentage of repurchase of common stock (in hundredths) 10.00% 10.00%    
Repurchase of common stock (in shares) 1,200,000 859,499 0  
Bank credit agreement to permit share repurchases of common stock $ 15,000,000 $ 15,000,000    
Additional estimated shares (in shares)     273,900  
Closing price (in dollars per share)     $ 54.76