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SHAREHOLDERS EQUITY (Description of Plans) (Details) - shares
12 Months Ended
Dec. 31, 2017
Aug. 31, 2017
Oct. 31, 2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period for plan 4 years    
Option One [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expiration period 6 years    
Option Two [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expiration period 7 years    
Option Three [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expiration period 10 years    
Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period for plan 2 years    
Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period for plan 4 years    
2008 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total number of shares authorized   4,572,000  
Shares available for grant 111,138 5,572,000 1,000,000