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STOCK-BASED COMPENSATION (Narrative) (Details) - USD ($)
12 Months Ended
Aug. 03, 2017
Dec. 31, 2018
Employee Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Issued to employees   410,000
Employees' Stock-Based Compensation Plans    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares available for issuance   571,066
Employees' Stock-Based Compensation Plans | Employee Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares available for issuance   497,510
Employees' Stock-Based Compensation Plans | Employee Stock Options or Shares    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares available for issuance   73,556
Non-employee Directors' Stock-Based Compensation Plans    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Annual compensation $ 120,000  
Number of shares available for issuance   1,130,000
Number of shares currently available for issuance   393,576
Compensation paid in cash (as percentage) 50.00%  
Compensation paid in shares (as percentage) 50.00%  
Audit Committee Chair    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Additional Stock based Compensation $ 20,000  
Chairman of Board of Directors    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Additional Stock based Compensation 15,000  
Other Committee Chairs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Additional Stock based Compensation $ 10,000