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Warrant liabilities (Details - Assumptions)
10 Months Ended
Feb. 15, 2022
May 14, 2021
Measurement Input, Risk Free Interest Rate [Member]    
Offsetting Assets [Line Items]    
Fair value measurement assumptions 1.6  
Warrant Liability [Member] | Measurement Input, Expected Term [Member]    
Offsetting Assets [Line Items]    
Fair value measurement assumptions   1 day to 3 years
Warrant Liability [Member] | Measurement Input, Price Volatility [Member]    
Offsetting Assets [Line Items]    
Fair value measurement assumptions   3.3% to 58%
Warrant Liability [Member] | Measurement Input, Risk Free Interest Rate [Member]    
Offsetting Assets [Line Items]    
Fair value measurement assumptions   0.35% to 0.92%
Warrant Liability [Member] | Measurement Input, Expected Dividend Rate [Member]    
Offsetting Assets [Line Items]    
Fair value measurement assumptions   0%
Warrant Liability [Member] | Measurement Input Probablity [Member]    
Offsetting Assets [Line Items]    
Fair value measurement assumptions   100%