Note 1 - General (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	Year ended December 31,
Major Customers/ Distributors	201 9			201 8			201 7
VTech Holdings Ltd.		21	%		24	%		27	%
Nexty Electronics Ltd. (“Nexty Electronics”) ¹ ²		*			11	%		12	%
Ascend Technology Inc. (“Ascend Technology”) ¹ ³		27	%		26	%		23	%