NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net sales	$ 20,328	$ 21,568
Equipment Sales
Net sales	11,480	12,553
Adapter Sales
Net sales	5,527	5,535
Software and Maintenance Sales
Net sales	$ 3,321	$ 3,480