Summary of significant accounting policies (Details - Financial assets and liabilities)	Sep. 30, 2026 USD ($)
Common Stock Investment [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	$ 48,965,766
Common Stock Investment [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	48,965,766
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	3,686,000
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	3,686,000
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
Non Public Warrants [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	740,000
Non Public Warrants [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	0
Non Public Warrants [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	0
Non Public Warrants [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	740,000
Total Short Term Investments [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	53,391,766
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	48,965,766
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	3,686,000
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	740,000
Contingent consideration from Rotor Lab acquisition [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	3,000,000
Contingent consideration from Rotor Lab acquisition [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	3,000,000
Contingent consideration from Rotor Lab acquisition [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	0
Contingent consideration from Rotor Lab acquisition [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Assets, fair value	$ 0

Common Stock Investment [Member]