Note 13 - Concentrations of Credit Risk (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Marketing Partner [Member]
Number of Customers	1		1
Distributor [Member]
Number of Customers	3	3	3
Distributors and Marketing Partners [Member]
Number of Customers				3
Distributors and Marketing Partners [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage	69.00%	75.00%	74.00%	76.00%
Distributors and Marketing Partners [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage	68.00%	73.00%	68.00%	73.00%