NOTE 9 - EARNINGS PER SHARE (In thousands, except per share data) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share [Abstract]
Numerator for basic and diluted earnings per share: Net income (loss)	$ (844)	$ 127	$ 26	$ 342	$ 486	$ 130	$ (691)	$ 958
Denominator for basic earnings per share: weighted average shares	8,217			8,439			8,259	8,361
Employee stock options and awards	25			68			71	155
Denominator for diluted earnings per share: adjusted weighted-average shares and assumed conversions of stock options	8,242			8,507			8,259	8,516
Total basic earnings (loss) per share	$ (0.10)			$ 0.04			$ (0.08)	$ 0.11
Total diluted earnings (loss) per share	$ (0.10)			$ 0.04			$ (0.08)	$ 0.11