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Shareholder's Equity (Tables)
12 Months Ended
Dec. 31, 2018
Equity [Abstract]  
Schedule of options outstanding and exercisable
Options Outstanding  Options Exercisable
Number
Outstanding on
December 31,
2018
   Weighted Average
Remaining
Contractual Life
  Number
Exercisable on
December 31,
2018
   Exercise Price
    Years      $
 15,000   4.5   15,000   4.30
 421,000   6   421,000   4.30
 736,000   9.5   536,000   1.32
 125,000   9.75   125,000   1.4776
 1,297,000       1,097,000    
Schedule of company's stock option activity
   2018   2017 
   Number of
Options
   Weighted Average Exercise Price   Number of
Options
   Weighted Average Exercise Price 
       $       $ 
Options outstanding at the beginning of year:   536,000    4.30    746,000    4.30 
Changes during the year:                    
Granted   861,000    1.34    100,000    4.30 
Exercised   -    -    -    - 
Forfeited   (100,000)   4.30    (310,000)   4.30 
                     
Options outstanding at end of year   1,297,000    2.34    536,000    4.30 
Options exercisable at year-end   1,097,000    1.35    461,000    4.30