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11. STOCK-BASED COMPENSATION (Tables)
9 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [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, 2018       808,500     $ 1.61       $1.44 - $4.80  

Expired during the period ended

September 30, 2018

      (25,000 )   $ 2.31       $2.07-2.55  
Balance, September 30, 2018       783,500     $ 1.58       $1.44 - $4.80  
Schedule Stock and Warrants Options Outstanding
    Stock and Warrants Options Exercisable and Outstanding
            Weighted Average
            Remaining
    Outstanding at September 30, 2018  

Range of

Exercise Prices

 

Contractual Life

 (Years)

Exercisable and outstanding   783,500   $1.44 - $4.80   2.45