Note 3 - Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Accrued commissions	$ 2,391,712	$ 1,479,580
Reserve for processing losses	769,789	755,494
Other accrued expenses	139,764	821,167
Accrued taxes	160,610	320,854
Accrued salaries	340,979	344,013
Total accrued expenses	$ 3,802,854	$ 3,721,108