Note 20 - Concentration of Risk (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

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

	Customer A	Customer B	Customer C	Customer D	Customer E
Six Months Ended June 30, 2020
Revenues, customer concentration risk	*	*	*	*	*
Three Months Ended June 30, 2020
Revenues, customer concentration risk	*	*	*	*	*
Six Months Ended June 30, 2019
Revenues, customer concentration risk	13%	*	-	-	-
Three Months Ended June 30, 2019
Revenues, customer concentration risk	11%	*	-	-	-
As of June 30, 2020
Accounts receivable, customer concentration risk	27%	*	17%	19%	16%
As of December 31, 2019
Accounts receivable, customer concentration risk	57%	13%	12%	-	-

	Supplier A
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%
Six Months Ended June 30, 2019
Cost of revenues, supplier concentration risk	90%
Three Months Ended June 30, 2019
Cost of revenues, supplier concentration risk	91%