Note 19 - Concentration of Risk (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	Customer A			Customer B			Customer C			Customer D			Customer E			Customer F
Six Months Ended June 30, 2021
Revenues, customer concentration risk		11	%		14	%		*			-			-			*
Three Months Ended June 30, 2021
Revenues, customer concentration risk		14	%		12	%		*			-			-			*
Six Months Ended June 30, 2020
Revenues, customer concentration risk		-			-			*			*			*			-
Three Months Ended June 30, 2020
Revenues, customer concentration risk		-			-			*			*			*			-
As of June 30, 2021
Accounts receivable, customer concentration risk		62	%		-			17	%		-			-			10	%
As of December 31, 2020
Accounts receivable, customer concentration risk		-			-			28	%		27	%		21	%		-

	Supplier A			Supplier B
Six Months Ended June 30, 2021
Cost of revenues, supplier concentration risk		73	%		12	%
Three Months Ended June 30, 2021
Cost of revenues, supplier concentration risk		86	%		*
Six Months Ended June 30, 2020
Cost of revenues, supplier concentration risk		-			78	%
Three Months Ended June 30, 2020
Cost of revenues, supplier concentration risk		-			81	%