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, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Numerator for basic and diluted earnings per share: Net income (loss)	$ (1,057)	$ (554)	$ 127	$ 26	$ (1,611)	$ 153
Denominator for basic earnings per share: weighted average shares (in thousands)	8,302		8,257		8,261	8,280
Employee stock options and awards (in thousands)	46		75		51	95
Denominator for diluted earnings per share: adjusted weighted-average shares and assumed conversions of stock options (in thousands)	8,348		8,332		8,312	8,375
Total basic earnings (loss) per share	$ (0.13)		$ 0.02		$ (0.19)	$ 0.02
Total diluted earnings (loss) per share	$ (0.13)		$ 0.02		$ (0.19)	$ 0.02