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SHARE OPTION PLAN (Narrative) (Details) - USD ($)
1 Months Ended 12 Months Ended
Mar. 31, 2019
Jan. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected life of options (in years)     3 years 6 months 3 years 6 months 3 years 6 months
Weighted average fair value of options granted (in dollars per share)     $ 2.68 $ 3.49 $ 3.77
Risk free interest rate     2.36% 2.63% 1.58%
Expected share price volatility     25.00% 29.50% 33.00%
Expected dividend yield     0.00% 0.00% 0.00%
Options exercised (in shares)     18,246 0 7,500
Total intrinsic value of options exercised during the period     $ 300,000   $ 20,000.00
Proceeds from stock options exercised         $ 100,000
Weighted average remaining contractual term     1 year 9 months 18 days    
Unrecognized compensation costs, period of recognition     1 year 3 months 18 days 1 year 4 months 24 days 2 years
Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)     525,000 83,000 113,000
Granted (in dollars per share)     $ 12.19 $ 14.67 $ 14.30
Options exercised (in shares)     65,000 0 7,500
Exercisable at end of year (in shares)     236,167 111,500 85,500
Intrinsic value of exercisable options     $ 1,200,000 $ 0.0 $ 300,000
Unrecognized compensation costs related to non-vested options granted     800,000 300,000 500,000
Unrecognized compensation costs     $ 2,000,000 0.0 900,000
New Options Granted During The Year          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected life of options (in years)     5 years    
Vesting period     3 years    
Additional paid-in capital          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Employee stock options, compensation cost recognized in the period     $ 900,000    
Amortization of stock-based compensation     896,000 454,000 374,000
Additional paid-in capital | Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Amortization of stock-based compensation     $ 800,000 $ 400,000 $ 400,000
Officer | Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)   100,000      
Granted (in dollars per share)   $ 11.50      
Directors, Officers and Employees | Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares) 425,000        
Granted (in dollars per share) $ 12.35