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Note 1 - Basis of Presentation - Schedule of Disaggregation of Revenue (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Revenues $ 13,461,550 $ 7,771,679
ACH and Complementary Service Revenue [Member]    
Revenues 3,078,456 2,237,746
Credit Card Revenue [Member]    
Revenues 5,723,709 4,982,658
Prepaid Card Services Revenue [Member]    
Revenues 886,576 551,275
Output Solutions [Member]    
Revenues $ 3,772,809