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Note 7 - Stockholders' Equity (Deficiency) - Stock Option Activity (Details) - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Outstanding and exercisable, number of options, balance (in shares) 1,010,000
Outstanding and exercisable, weighted average exercise price (in dollars per share) $ 0.42
Granted, number of options (in shares) 0 1,010,000
Granted, weighted average exercise price (in dollars per share) $ 0.42
Exercised, number of options (in shares) 0
Exercised, weighted average exercise price (in dollars per share)
Expired, number of options (in shares) (130,000)  
Expired, weighted average exercise price (in dollars per share) $ (0.42)  
Outstanding and exercisable, number of options, balance (in shares) 880,000 1,010,000
Outstanding and exercisable, weighted average exercise price (in dollars per share) $ 0.42 $ 0.42