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Stock warrants (Tables)
 12 Months Ended
Dec. 31, 2022
Warrants and Rights Note Disclosure [Abstract]  
Schedule of outstanding stock purchase warrants [Table Text Block]
    Number of
warrants		     Weighted
Average
Exercise
Price		     Weighted
Average
Remaining
Term
(years)		  
Balance December 31, 2021 and 2020   -   $ -     -  
Assumed in reverse acquisition   5,684,294     0.60        
Issued in connection with convertible debt   2,729,167     0.32        
Exercise   -     -        
Expired   -     -        
Balance December 31, 2022   8,413,461   $ 0.51     4.4