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EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Basic and diluted earnings
Net income (loss)	$ (43)	$ (18)
Weighted average outstanding shares of common stock	6,601	6,563
Dilutive potential common shares from stock options and restricted stock units		35
Common stock and common stock equivalents	6,601	6,598
Earnings per share:
Earnings (loss) per share, basic and diluted	$ (0.01)	$ 0.00
Shares subject to anti-dilutive stock options and restricted stock-based awards excluded from calculation		6

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