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13. STOCK-BASED COMPENSATION (Tables)
9 Months Ended
Sep. 30, 2019
Share-based Payment Arrangement [Abstract]  
Schedule of stock option transactions
    Number of Option
and Warrants
Outstanding and exercisable
  Weighted- Average Exercise price of Option
and Warrants
  Range of
Exercise Price per Common Share
Balance, January 1, 2019     2,518,000       $0.97       $0.71 - $4.80  
Granted and vested during the period ended September 30, 2019     150,000       $0.91       $0.91  
Exercised during the period ended September 30, 2019     (1,897,000)       $0.73       $0.73  
Expired/cancelled during the period ended September 30, 2019     (65,500)       $2.31       $2.61  
Balance, September 30, 2019     705,500       $1.47       $0.71 - $2.10  
Schedule of stock and warrants options outstanding
Stock and Warrants Options Exercisable and Outstanding
                      Weighted Average  
                      Remaining  
      Outstanding at September 30, 2019      

Range of

Exercise Prices

     

Contractual Life

 (Years)

 
Exercisable and outstanding     705,500       $0.71 - $2.10       1.74