EARNINGS /(LOSS) PER SHARE- Loss per share basic and diluted (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator for basic and diluted (loss) income per common share:
Net income (loss)	$ 337,000	$ (618,000)
Denominator:
Denominator for basic earnings (loss) per share - weighted average common shares outstanding	3,195,000	3,169,000
Dilutive securities	0	0
Denominator for diluted earnings (loss) per share - weighted average common shares outstanding	3,195,000	3,169,000