Note 18 - Concentration of Risk - Company's Concentration of Customers and Suppliers (Details)		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Cost Of Sales Total [Member] | Supplier Concentration Risk [Member] | Supplier A [Member]
Concentration risk		74.00%		47.00%	12.00%
Cost Of Sales Total [Member] | Supplier Concentration Risk [Member] | Supplier B [Member]
Concentration risk			86.00%	35.00%	73.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer A [Member]
Concentration risk	[1]	11.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer B [Member]
Concentration risk			12.00%		14.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer C [Member]
Concentration risk			14.00%		11.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer C [Member]
Concentration risk				19.00%		11.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer D [Member]
Concentration risk				37.00%		33.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer E [Member]
Concentration risk				30.00%		32.00%	[1]
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer F [Member]
Concentration risk	[1]					19.00%

[1] Less than 10%.