NOTE 1 - FINANCIAL STATEMENT PREPARATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues	$ 4,655	$ 5,834	$ 9,440	$ 11,892
Change in revenue	(20.20%)		(20.60%)
Equipment Sales
Revenues	$ 2,476	3,537	$ 5,063	7,247
Change in revenue	(30.00%)		(30.10%)
Adapter Sales
Revenues	$ 1,324	1,421	$ 2,669	2,882
Change in revenue	(6.80%)		(7.40%)
Software and Maintenance
Revenues	$ 855	$ 876	$ 1,708	$ 1,763
Change in revenue	(2.40%)		(3.10%)