Note 19 - Concentration of Risk - Company's Concentration of Customers and Suppliers (Details)		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Cost Of Sales Total [Member] | Supplier Concentration Risk [Member] | Supplier A [Member]
Concentration risk		73.00%
Cost Of Sales Total [Member] | Supplier Concentration Risk [Member] | Supplier B [Member]
Concentration risk			78.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer A [Member]
Concentration risk		33.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer B [Member]
Concentration risk		32.00%	28.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer C [Member]
Concentration risk		19.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer D [Member]
Concentration risk		11.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer E [Member]
Concentration risk	[1]		27.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer F [Member]
Concentration risk			21.00%

[1] Less than 10%.