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Note 4 - Intangible Assets and Goodwill - Goodwill (Details) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Sep. 30, 2022
Sep. 30, 2021
Goodwill       $ 6,857,790 $ 6,857,790  
Impairment $ 0   $ (2,813,792)   (7,231,093) $ (2,813,792)
Goodwill 0       0  
zPREDICTA [Member]            
Goodwill 0     6,857,790 6,857,790  
Adjustment to fair value   $ 373,303   373,303    
Impairment 0     (7,231,093) (7,231,093)  
Goodwill $ 0 $ 0   $ 0 $ 0