EARNINGS (LOSS) PER SHARE (Details) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Numerator for basic and diluted earnings (loss) per common share:
Net income (loss)		$ 541,000	$ 5,000	$ 911,000	$ (38,000)
Denominator:
Denominator for basic earnings (loss) per share - weighted average common shares outstanding		3,701,000	3,617,000	3,626,000	3,609,000
Dilutive securities	[1]	83,000	160,000	112,000	0
Denominator for diluted earnings (loss) per share - weighted average common shares outstanding		3,784,000	3,777,000	3,738,000	3,609,000

[1] Dilutive securities consist of “in the money” stock options.