v3.25.2
Accrued expenses (Details) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Interim Period, Costs Not Allocable [Line Items]    
Total $ 2,502,979 $ 596,610
Accrued Expense [Member]    
Interim Period, Costs Not Allocable [Line Items]    
Sponsorship agreements 50,000
Accrued refunds 216,000
Accrued interest 393,000
Accrued credit card charges 186,000 10,000
Accrued common stock payable 162,000  
Accrued Series A Preferred Stock dividends 293,000 195,000
Legal and professional 86,000
Investment deposit 167,000
Terminated lease 1,005,000
Other accrued expenses 248,000 89,000
Total $ 2,503,000 $ 597,000