Annual report pursuant to Section 13 and 15(d)

STOCKBASED COMPENSATION (Details 3)

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STOCKBASED COMPENSATION (Details 3) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Number of Shares or Options Granted
Stock-Based Compensation Expense $ 5,286 $ 3,457
Stock Options [Member]    
Number of Shares or Options Granted 4,174,428 7,659,565
Stock-Based Compensation Expense $ 4,342 $ 2,528
Employees (Common Stock) [Member]    
Number of Shares or Options Granted 740,580 201,296
Stock-Based Compensation Expense $ 473 $ 603
Directors (Common Stock) [Member]    
Number of Shares or Options Granted 173,610 49,500
Stock-Based Compensation Expense $ 102 $ 100
Non-Employee Consultants (Common Stock) [Member]    
Number of Shares or Options Granted 715,065 132,971
Stock-Based Compensation Expense $ 369 $ 224