Note 1 - Basis of Presentation - Reconciliation of Cash and Cash Equivalents to Cash, Cash Equivalents and Merchant Reserves (Details) - USD ($)	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
Cash and cash equivalents	$ 2,137,580	$ 2,636,378	$ 2,159,698
Prepaid card load assets	528,434	725,333	535,479
Merchant reserves	10,016,904	10,201,904	12,645,803
Cash, cash equivalents, prepaid card load assets and merchant reserves, beginning of period	12,682,918	13,563,615	15,340,980
Cash and cash equivalents	11,405,119	2,137,580	2,636,378
Prepaid card load assets	7,906,580	528,434	725,333
Merchant reserves	8,234,404	10,016,904	10,201,904
Cash, Cash Equivalents, Prepaid Card Load Assets and Merchant Reserves, End of Period	$ 27,546,103	$ 12,682,918	$ 13,563,615