Note 1 - Basis of Presentation - Reconciliation of Cash and Cash Equivalents to Cash, Cash Equivalents and Merchant Reserves (Details) - USD ($)	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021
Cash and cash equivalents	$ 7,590,951	$ 7,255,321	$ 5,614,702	$ 4,284,360	$ 5,011,132
Prepaid card load assets	28,846,980	36,590,893	9,157,519	18,555,474	7,610,242
Customer deposits	1,391,465	1,364,193	1,410,607	1,357,242	1,305,296
Merchant reserves	6,386,153	6,381,153	8,101,153	8,317,462	8,265,555
Cash, cash equivalents, prepaid card load assets, customer deposits and merchant reserves, beginning of period	44,215,549	51,591,560	24,283,981	32,514,538	22,192,225
Cash and cash equivalents	5,102,061	7,590,951	7,255,321	5,614,702	4,284,360
Prepaid card load assets	15,104,808	28,846,980	36,590,893	9,157,519	18,555,474
Customer deposits	1,471,214	1,391,465	1,364,193	1,410,607	1,357,242
Merchant reserves	6,815,073	6,386,153	6,381,153	8,101,153	8,317,462
Cash, Cash Equivalents, Prepaid Card Load Assets, Customer Deposits and Merchant Reserves, End of Period	$ 28,493,156	$ 44,215,549	$ 51,591,560	$ 24,283,981	$ 32,514,538