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SHAREHOLDERS' EQUITY (Narrative) (Details) - $ / shares
1 Months Ended 6 Months Ended 12 Months Ended
Dec. 09, 2012
Jun. 30, 2020
Dec. 31, 2003
Dec. 31, 2015
Undertone [Member] | Warrant [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of warrants issued       66,666
Warrants, exercise price       $ 9.09
Equity Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares available for grant   308,053    
Option expiration term 10 years   10 years  
Equity Incentive Plan [Member] | Employee Stock Option [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period for plan   1 year    
Contractual term   5 years    
Equity Incentive Plan [Member] | Employee Stock Option [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period for plan   3 years    
Contractual term   7 years    
Equity Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period for plan   1 year    
Equity Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period for plan   3 years