Note 16 - Concentration of Risk (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

	December 31,
	2020			2019
Accounts Receivable:
Customer A		11	%		18	%
Customer B		*			*
Customer C		*			10	%
Customer D		18	%		*
Net sales:
Customer A		20	%		20	%
Customer B		12	%		12	%
Customer D		10	%		*