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ACCOUNTING FOR STOCK BASED COMPENSATION, Stock Option Awards (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Number of Options [Roll Forward]        
Options exercised (in shares)     (193,828) (274,355)
Information Related to Stock Option Plans [Abstract]        
Compensation expense recognized     $ 2,277 $ 2,407
Stock Option Awards [Member]        
Number of Options [Roll Forward]        
Options outstanding, beginning of period (in shares)     465,246  
Options granted (in shares)     0  
Options exercised (in shares)     (193,828)  
Options that expired prior to exercise (in shares)     (10,000)  
Options outstanding, end of period (in shares) 261,418   261,418  
Options vested and exercisable. end of period (in shares) 261,418   261,418  
Weighted-Average Exercise Price [Abstract]        
Options outstanding, beginning of period (in dollars per share)     $ 14.87  
Options granted (in dollars per share)     0  
Options exercised (in dollars per share)     14.23  
Options that expired prior to exercise (in dollars per share)     18.18  
Options outstanding, end of period (in dollars per share) $ 15.22   15.22  
Options vested and exercisable. end of period (in dollars per shares) $ 15.22   $ 15.22  
Weighted-Average Remaining Contractual Years [Abstract]        
Weighted average remaining contractual years, options outstanding at end of period     2 years 3 months 18 days  
Weighted average remaining contractual years, options vested and exercisable. end of period     2 years 3 months 18 days  
Aggregate Intrinsic Value [Abstract]        
Aggregate intrinsic value, options outstanding, end of period $ 501   $ 501  
Aggregate intrinsic value, options vested and exercisable, end of period 501   501  
Information Related to Stock Option Plans [Abstract]        
Intrinsic value of options exercised 0 $ 0 732 384
Compensation expense recognized $ 0 $ 0 $ 0 $ 31
Number of grants in period (in shares) 0 0 0 0
Unrecognized compensation expense in period $ 0   $ 0