Note 1 - Basis of Presentation - Reconciliation of Cash and Cash Equivalents to Cash, Cash Equivalents and Merchant Reserves (Details) - USD ($)	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022
Cash and cash equivalents	$ 6,763,813	$ 5,709,117	$ 5,102,061	$ 7,590,951	$ 7,255,321
Prepaid card load assets	18,812,954	20,170,761	15,104,808	28,846,980	36,590,893
Customer deposits	1,575,075	1,554,122	1,471,214	1,391,465	1,364,193
Merchant reserves	4,744,615	4,909,501	6,815,073	6,386,153	6,381,153
Cash, cash equivalents, prepaid card load assets, customer deposits and merchant reserves, beginning of period	31,896,457	32,343,501	28,493,156	44,215,549	51,591,560
Cash and cash equivalents	6,575,124	6,763,813	5,709,117	5,102,061	7,590,951
Prepaid card load assets	46,398,476	18,812,954	20,170,761	15,104,808	28,846,980
Customer deposits	1,563,192	1,575,075	1,554,122	1,471,214	1,391,465
Merchant reserves	5,141,040	4,744,615	4,909,501	6,815,073	6,386,153
Cash, Cash Equivalents, Prepaid Card Load Assets, Customer Deposits and Merchant Reserves, End of Period	$ 59,677,832	$ 31,896,457	$ 32,343,501	$ 28,493,156	$ 44,215,549