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STOCK-BASED COMPENSATION, Stock Options Outstanding And Exercisable (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Outstanding and Exercisable [Abstract]      
Number of Options Outstanding at December 31 (in shares) 16,500    
Weighted Average Remaining Contractual Life (Years) 10 months 17 days    
Aggregate Intrinsic Value $ 654,000    
Lower range limit (in dollars per share) $ 10.04    
Upper range limit (in dollars per share) $ 18.34    
Stock-based compensation, aggregate disclosures [Abstract]      
Shares tendered to net share settle (in shares) 13,959 0 20,768
Fair value of shares withheld for tax withholding obligations $ 5,337,000 $ 2,844,000  
$10.04–$12.70 [Member]      
Outstanding and Exercisable [Abstract]      
Number of Options Outstanding at December 31 (in shares) 1,750    
Weighted Average Remaining Contractual Life (Years) 1 year 6 months    
Weighted Average Exercise Price $ 11.78    
Aggregate Intrinsic Value $ 75,000    
Lower range limit (in dollars per share) $ 10.04    
Upper range limit (in dollars per share) $ 12.7    
$14.16-$14.39 [Member]      
Outstanding and Exercisable [Abstract]      
Number of Options Outstanding at December 31 (in shares) 10,500    
Weighted Average Remaining Contractual Life (Years) 3 months 18 days    
Weighted Average Exercise Price $ 14.38    
Aggregate Intrinsic Value $ 421,000    
Lower range limit (in dollars per share) $ 14.16    
Upper range limit (in dollars per share) $ 14.39    
$15.22–$18.34 [Member]      
Outstanding and Exercisable [Abstract]      
Number of Options Outstanding at December 31 (in shares) 4,250    
Weighted Average Remaining Contractual Life (Years) 1 year 6 months    
Weighted Average Exercise Price $ 17.21    
Aggregate Intrinsic Value $ 158,000    
Lower range limit (in dollars per share) $ 15.22    
Upper range limit (in dollars per share) 18.34    
Stock Options [Member]      
Outstanding and Exercisable [Abstract]      
Weighted Average Exercise Price $ 14.83    
Stock-based compensation, aggregate disclosures [Abstract]      
Total intrinsic value of stock awards exercised $ 12,000,000 3,700,000 $ 4,900,000
Compensation expense 0 0 0
Value of shares tendered to net share settle exercise of options $ 429,100 $ 0 $ 1,000,000
Shares withheld for tax withholding obligations (in shares) 30,186 0 7,599
Fair value of shares withheld for tax withholding obligations $ 1,299,808 $ 0 $ 274,000