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Subsequent events (Details Narrative) - USD ($)
$ / shares in Units, $ in Millions
Feb. 11, 2022
Feb. 11, 2021
Private Placement [Member]    
Subsequent Event [Line Items]    
Stock Issued During Period, Value, New Issues   $ 40.0
Subsequent Event [Member]    
Subsequent Event [Line Items]    
Stock Issued During Period, Shares, New Issues 16,000,000  
Shares Issued, Price Per Share $ 2.50  
Payments to Acquire Intangible Assets $ 29.8  
Subsequent Event [Member] | Private Placement [Member]    
Subsequent Event [Line Items]    
Stock Issued During Period, Shares, New Issues 16,000,000  
Stock Issued During Period, Value, New Issues $ 40.0