Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS EQUITY (Details 1)

v3.21.1
STOCKHOLDERS EQUITY (Details 1) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Weighted Average Exercise Price [Member]    
Weighted average exercise price, Beginning of period $ 4.76 $ 5.16
Weighted average exercise price, Forfeited 3.81 3.97
Weighted average exercise price, Expired 4.26 4.60
Weighted average exercise price, Granted 2.93 3.49
Weighted average exercise price, Exercised 2.03 2.84
Weighted average exercise price, Outstanding at end of period and expected to vest 4.40 $ 4.76
Weighted average exercise price, Options exercisable $ 5.01  
Shares [Member]    
Shares, Outstanding at beginning of period 5,630,351 4,342,231
Shares, Forfeited (141,724) (169,993)
Shares, Expired (27,482) (19,983)
Shares, Granted 1,468,412 1,508,000
Shares, Exercised (6,626) (29,904)
Shares, Outstanding at end of period and expected to vest 6,922,931 5,630,351
Shares, Options exercisable 4,544,902