Note 1 - Basis of Presentation - Reconciliation of Cash and Cash Equivalents to Cash, Cash Equivalents and Merchant Reserves (Details) - USD ($)	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021
Cash and cash equivalents	$ 5,102,061	$ 7,255,321	$ 5,939,834	$ 5,614,702	$ 5,011,132
Prepaid card load assets	15,104,808	36,590,893	15,084,868	9,157,519	7,610,242
Customer deposits	1,471,214	1,364,193	1,505,324	1,410,607	1,305,296
Merchant reserves	6,815,073	6,381,153	7,261,153	8,101,153	8,265,555
Cash, cash equivalents, prepaid card load assets, customer deposits and merchant reserves, beginning of period	28,493,156	51,591,560	29,791,179	24,283,981	22,192,225
Cash and cash equivalents	4,613,123	5,102,061	7,255,321	5,939,834	5,614,702
Prepaid card load assets	15,318,411	15,104,808	36,590,893	15,084,868	9,157,519
Customer deposits	1,585,586	1,471,214	1,364,193	1,505,324	1,410,607
Merchant reserves	5,654,729	6,815,073	6,381,153	7,261,153	8,101,153
Cash, Cash Equivalents, Prepaid Card Load Assets, Customer Deposits and Merchant Reserves, End of Period	$ 27,171,849	$ 28,493,156	$ 51,591,560	$ 29,791,179	$ 24,283,981