INCOME (LOSS) PER SHARE - Reconciliation of basic net loss to diluted net loss per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
INCOME (LOSS) PER SHARE
Net income (loss) applicable to common shareholders	$ 2,602	$ (879)	$ 1,513	$ (2,893)
Weighted average common shares outstanding, Basic	14,656	10,910	12,274	10,807
Weighted average common shares outstanding, Diluted	15,383	10,910	12,948	10,807
Basic net income (loss) per share (in dollars per share)	$ 0.18	$ (0.08)	$ 0.12	$ (0.27)
Diluted net income (loss) per share (In dollar per share)	$ 0.17	$ (0.08)	$ 0.12	$ (0.27)