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STOCK COMPENSATION PLAN (Detail Textuals) (Details) - USD ($)
3 Months Ended 9 Months Ended
May 18, 2019
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
May 28, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Outstanding shares   231,000   231,000     231,000
Exercise of stock options (in shares)       0      
Restricted stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized compensation cost related to non-vested stock options   $ 2,200,000   $ 2,200,000      
Compensation cost related to stock awards   340,000 $ 150,000 $ 903,000 $ 311,000    
Number of shares, Granted       106,423      
Unrecognized compensation expense recognition period       2 years 3 months 4 days      
Fair value of shares vested       $ 637,000      
Restricted stock | Non-employee directors              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Compensation cost related to stock awards   100,000   $ 300,000      
Number of shares, Granted       38,900      
Vesting percentage       33.00%      
Service period (in years)       3 years      
Vesting period       3 years      
Performance Restricted Share Units ("Prsus")              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Compensation cost related to stock awards   358,000 346,000 $ 1,100,000 908,000    
Number of PRSUs awarded       90,000      
Directors' fees | Director              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized compensation cost related to non-vested stock options   900,000   $ 900,000      
Unrecognized compensation expense recognition period       2 years 3 months      
Equity Incentive Plan 2019              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based payment award, shares authorized, maximum           340,000  
Equity Incentive Plan 2019 | Stock Option | Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Percentage of exercise price to the fair market value       100.00%      
Equity Incentive Plan 2019 | Incentive stock options granted to any 10% stockholder | Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Percentage of the exercise price to the fair market value of the shares covered by the stock option on the date of grant in the case of an ISO granted to 10% stockholder       110.00%      
Equity Incentive Plan 2009              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Outstanding shares           468,382  
Number of shares expired 628,719            
Compensation cost related to stock awards   0 $ 0 $ 0 $ 0    
Equity Incentive Plan 2009 | Stock Option              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized compensation cost related to non-vested stock options   $ 0   $ 0     $ 0
Equity Incentive Plan 2009 | Equity Incentive Plan | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based payment award, exercise period from the grant date       10 years      
Equity Incentive Plan 2009 | Incentive stock options | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based payment award, exercise period from the grant date       5 years