INCOME (LOSS) PER SHARE - Basic net loss per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Basic net loss per share:
Net loss applicable to common shareholders	$ (723)	$ (588)	$ (1,089)	$ (2,014)
Weighted average common shares outstanding	11,151	10,843	11,083	10,756
Basic net loss per share	$ (0.06)	$ (0.05)	$ (0.10)	$ (0.19)