LOSS PER SHARE - Loss per share basic and diluted (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator for basic and diluted loss per common share
Net loss	$ (758,000)	$ (26,000)
Denominator:
Denominator for basic and diluted loss per share - weighted average common shares outstanding	3,144,000	3,381,000