Note 1 - Basis of Presentation - Schedule of Disaggregation of Revenue (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues	$ 8,137,077	$ 7,087,732	$ 22,869,309	$ 20,833,143
ACH and Complementary Service Revenue [Member]
Revenues	2,063,458	2,313,742	6,080,449	7,029,953
Credit Card Revenue [Member]
Revenues	5,076,591	4,467,189	14,647,448	12,795,058
Prepaid Card Services Revenue [Member]
Revenues	$ 997,028	$ 306,801	$ 2,141,412	$ 1,008,132