NET INCOME (LOSS) PER SHARE (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Reconciliation from basic to diluted weighted average common shares outstanding
Basic weighted-average shares of common stock outstanding	16,178,000	16,148,000	16,177,000	16,128,000
Stock options (in shares)		93,000		100,000
Diluted weighted-average shares of common stock outstanding	16,178,000	16,241,000	16,177,000	16,228,000
Anti-dilutive potential shares excluded from the computation of diluted weighted average shares outstanding (in shares)		5,000		5,000