Note 3 - Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Accrued commissions	$ 745,210	$ 879,120
Reserve for processing losses	689,494	623,494
Other accrued expenses	255,775	226,888
Accrued taxes	185,995	298,168
Accrued salaries	300,526	297,995
Total accrued expenses	$ 2,177,000	$ 2,325,665