INCOME TAXES - Provision (benefit) for income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Current:
Federal	$ (31)	$ (31)
State and local	6	4
Deferred:
Federal	143	31
State and local	29	0
Income tax expense	$ 147	$ 4