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STOCK BASED COMPENSATION (Details Textual) - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 230,900 254,500  
Share Based Compensation Arrangement By Share Based Payment Award Options Price Per Share Common Stock Average High And Low Price Intrinsic Value $ 46.94    
Stock options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding and expected to vest at December 31, 2015 [1] 121,900    
Annualized estimated forfeitures 4.50% 3.50% 3.50%
Options exercisable at December 31, 2015 [1] 121,900    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares 0 1,666  
Weighted average remaining recognition period (years) 0 years    
Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 264,944 [2] 276,527  
Weighted average remaining recognition period (years) 2 years 11 months 19 days    
Director [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding and expected to vest at December 31, 2015 24,000    
Director [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 44,200    
Two Thousand Five Amended and Restated Employee Stock Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized [3] 1,650,000    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 518,762    
Two Thousand Five Amended and Restated Employee Stock Plan [Member] | Stock Options or Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 1,650,000    
Two Thousand Six Nonemployee Director Stock Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Transferred From (To) Another Plan 14,600    
Two Thousand Ten Nonemployee Director Stock Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized [4] 314,600    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 210,780    
Two Thousand Ten Nonemployee Director Stock Plan [Member] | Stock Options or Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 314,600    
Two Thousand Ten Nonemployee Director Stock Plan [Member] | Maximum [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years    
[1] Inclusive of 24,000 stock options outstanding and expected to vest to Directors.
[2] Inclusive of 44,200 restricted stock awards outstanding to Directors.
[3] The Company may award up to a total of 1,650,000 shares as stock options or restricted stock awards.
[4] The Company may award up to a total of 314,600 shares as stock options or restricted stock awards, inclusive of 14,600 shares which were transferred from the previous 2006 Nonemployee Director Stock Plan.