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Note 1 - Basis of Presentation - Schedule of Disaggregation of Revenue (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Revenues $ 15,233,141 $ 6,960,553 $ 28,694,691 $ 14,732,232
ACH and Complementary Service Revenue [Member]        
Revenues 4,001,897 1,779,245 7,080,353 4,016,991
Credit Card Revenue [Member]        
Revenues 6,558,076 4,588,199 12,281,785 9,570,857
Prepaid Card Services Revenue [Member]        
Revenues 1,077,531 593,109 1,964,107 1,144,384
Output Solutions [Member]        
Revenues $ 3,595,637 $ 0 $ 7,368,446 $ 0