Note E - Concentration of Risk (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	Years Ended December 31,
	201 8			201 7
Customer A		27	%		*
Customer B		14	%		54	%
Customer C		13	%		*

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

	As of December 31,
	201 8			201 7
Customer A		70	%		*
Customer B		*			87	%