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Loans payable (Details - Interest expense) - USD ($)
3 Months Ended 9 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Obligation with Joint and Several Liability Arrangement [Line Items]        
Interest expense $ 81,904 $ 180,369 $ 353,330 $ 550,346
Accrued Interest [Member]        
Obligation with Joint and Several Liability Arrangement [Line Items]        
Interest expense 71,879 95,167 181,049 296,471
Credit Utilization Fees [Member]        
Obligation with Joint and Several Liability Arrangement [Line Items]        
Interest expense 10,025 18,897 46,375 54,961
Amortization Of Debt Discount [Member]        
Obligation with Joint and Several Liability Arrangement [Line Items]        
Interest expense $ 0 $ 66,305 $ 125,906 $ 198,914