LOSS PER SHARE - Loss per share basic and diluted (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator for basic and diluted loss per common share:
Net loss	$ (618,000)	$ (307,000)
Denominator:
Denominator for basic loss per share - weighted average common shares outstanding	3,169,000	3,169,000
Dilutive securities (1)	0	0
Denominator for diluted loss per share - weighted average common shares outstanding	3,169,000	3,169,000