Note 22 - Concentration of Risk (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	Customer A	Customer B	Customer C	Customer D
Year Ended December 31, 2018
Revenues, customer concentration risk	17%	*	*	*
Year Ended December 31, 2017
Revenues, customer concentration risk	12%	12%	10%	*
As of December 31, 2018
Accounts receivable, customer concentration risk	74%	12%	-	-
As of December 31, 2017
Accounts receivable, customer concentration risk	30%	*	20%	16%

	Supplier A	Supplier B
Year Ended December 31, 2018
Cost of revenues, supplier concentration risk	85%	11%
Year Ended December 31, 2017
Cost of revenues, supplier concentration risk	64%	26%