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NOTE 8 - EARNINGS PER SHARE (In thousands, except per share data) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Numerator for basic and diluted earnings (loss) per share: net income (loss)	$ (707)	$ (1,057)	$ (554)	$ (844)	$ 127	$ 26	$ (2,318)	$ (691)
Denominator for basic earnings (loss) per share: weighted average shares (in thousands)	8,394			8,217			8,305	8,259
Employee stock options and awards (in thousands)	69			25			57	71
Denominator for diluted earnings (loss) per share: adjusted weighted-average shares and assumed conversions of stock options (in thousands)	8,463			8,242			8,362	8,330
Total basic earnings (loss) per share	$ (0.09)			$ (0.10)			$ (0.28)	$ (0.08)
Total diluted earnings (loss) per share	$ (0.09)			$ (0.10)			$ (0.28)	$ (0.08)

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