Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Details 3)

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STOCK-BASED COMPENSATION (Details 3) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Stock-Based Compensation Expense $ 2,175 $ 5,287
Stock Options [Member]    
Stock-Based Compensation Expense $ 1,868 $ 4,343
Number of Shares or Options Granted 12,803,918 4,174,428
Employees (Common Stock) [Member]    
Stock-Based Compensation Expense $ 142 $ 473
Number of Shares or Options Granted   740,580
Directors (Common Stock) [Member]    
Stock-Based Compensation Expense 105 $ 102
Number of Shares or Options Granted   173,610
Non-Employee Consultants (Common Stock) [Member]    
Stock-Based Compensation Expense $ 60 $ 369
Number of Shares or Options Granted   715,065