Note 9 - Concentrations - Accounts Receivables and Revenues (Details) - Customer Concentration Risk [Member]	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Accounts Receivable [Member] | Customer 1 [Member]
Customer 1	20.00%		15.00%
Accounts Receivable [Member] | Customer 2 [Member]
Customer 1	16.00%		0.00%
Accounts Receivable [Member] | Customer 3 [Member]
Customer 1	1.00%		27.00%
Accounts Receivable [Member] | Customer 4 [Member]
Customer 1	0.00%		29.00%
Revenue from Contract with Customer Benchmark [Member] | Customer 1 [Member]
Customer 1	33.00%	48.00%
Revenue from Contract with Customer Benchmark [Member] | Customer 2 [Member]
Customer 1	16.00%	0.00%