Note 3 - Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Accrued commissions	$ 599,189	$ 425,486
Reserve for processing losses	725,591	897,116
Other accrued expenses	749,031	881,925
Accrued taxes	159,377	474,561
Accrued salaries	331,003	687,837
Total accrued expenses	$ 2,564,191	$ 3,366,925