v3.26.1
Summary of significant accounting policies (Details - financial assets and liabilities)
Jun. 30, 2026
USD ($)
Common Stock Investment [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value $ 34,702,949
Common Stock Investment [Member] | Fair Value, Inputs, Level 1 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 34,702,949
Common Stock Investment [Member] | Fair Value, Inputs, Level 2 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 0
Common Stock Investment [Member] | Fair Value, Inputs, Level 3 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 0
Pre Funded Warrants [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 3,790,500
Pre Funded Warrants [Member] | Fair Value, Inputs, Level 1 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 0
Pre Funded Warrants [Member] | Fair Value, Inputs, Level 2 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 3,790,500
Pre Funded Warrants [Member] | Fair Value, Inputs, Level 3 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 0
Warrants Investment [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 780,000
Warrants Investment [Member] | Fair Value, Inputs, Level 1 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 0
Warrants Investment [Member] | Fair Value, Inputs, Level 2 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 0
Warrants Investment [Member] | Fair Value, Inputs, Level 3 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 780,000
Total Short Term Investments [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 39,273,449
Total Short Term Investments [Member] | Fair Value, Inputs, Level 1 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 34,702,949
Total Short Term Investments [Member] | Fair Value, Inputs, Level 2 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 3,790,500
Total Short Term Investments [Member] | Fair Value, Inputs, Level 3 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 780,000
Rotor Lab Contingent Consideration [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 3,000,000
Rotor Lab Contingent Consideration [Member] | Fair Value, Inputs, Level 1 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 0
Rotor Lab Contingent Consideration [Member] | Fair Value, Inputs, Level 2 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value 0
Rotor Lab Contingent Consideration [Member] | Fair Value, Inputs, Level 3 [Member]  
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]  
Assets, fair value $ 3,000,000