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Basis of Presentation and Summary of significant accounting policies (Details - Assumptions)
Feb. 15, 2022
Corporate Bond Yield [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Derivatives, Determination of Fair Value 3.1
Measurement Input, Risk Free Interest Rate [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Derivatives, Determination of Fair Value 1.6
Liquidity Premium [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Derivatives, Determination of Fair Value 0.4
Measurement Input, Discount Rate [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Derivatives, Determination of Fair Value 3.5