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STOCK BASED COMPENSATION (Summary of Options Outstanding) (Details)
12 Months Ended
Dec. 31, 2017
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Options Outstanding 1,101,875
Weighted Average Remaining Contractual Life 2 years 2 months
Number of Exercisable Options 1,076,155
$7.00 - $7.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 7.00
Exercise Price, Upper Limit | $ / shares $ 7.99
Number of Options Outstanding 317,375
Weighted Average Remaining Contractual Life 3 years 1 month 6 days
Number of Exercisable Options 297,280
$8.00 - $8.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 8.00
Exercise Price, Upper Limit | $ / shares $ 8.99
Number of Options Outstanding 199,500
Weighted Average Remaining Contractual Life 1 year 6 months
Number of Exercisable Options 193,875
$9.00 - $9.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 9.00
Exercise Price, Upper Limit | $ / shares $ 9.99
Number of Options Outstanding 470,000
Weighted Average Remaining Contractual Life 2 years 3 months 18 days
Number of Exercisable Options 470,000
$10.00 - $14.50  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 10.00
Exercise Price, Upper Limit | $ / shares $ 14.50
Number of Options Outstanding 115,000
Weighted Average Remaining Contractual Life 2 months 12 days
Number of Exercisable Options 115,000