NOTE 8 - EARNINGS PER SHARE (In thousands, except per share data) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Numerator for basic and diluted earnings per share: Net income (loss)	$ 127	$ 26	$ 486	$ 130	$ 153	$ 616
Denominator for basic earnings per share: weighted average shares	8,257		8,356		8,280	8,321
Employee stock options and awards	75		144		95	200
Denominator for diluted earnings per share: adjusted weighted-average shares and assumed conversions of stock options	8,332		8,500		8,375	8,521
Total basic earnings per share	$ 0.02		$ 0.06		$ 0.02	$ 0.07
Total diluted earnings per share	$ 0.02		$ 0.06		$ 0.02	$ 0.07