Note 1 - Description of Business and Summary of Significant Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenues	$ 32,251,823	$ 28,200,535
Revenues, amount change	$ 4,051,288
Revenues, percent change	14.40%
ACH and Complementary Service Revenue [Member]
Revenues	$ 8,471,705	9,343,974
Revenues, amount change	$ (872,269)
Revenues, percent change	(9.30%)
Credit Card Revenue [Member]
Revenues	$ 19,453,501	17,329,322
Revenues, amount change	$ 2,124,179
Revenues, percent change	12.30%
Prepaid Card Services Revenue [Member]
Revenues	$ 3,166,580	1,527,239
Revenues, amount change	$ 1,639,341
Revenues, percent change	107.30%
Output Solutions [Member]
Revenues	$ 1,160,037
Revenues, amount change	$ 1,160,037
Revenues, percent change	100.00%