ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Allowance for Doubtful Accounts
Allowance, beginning of period	$ 71	$ 85
Increase (decrease) in provision for doubtful accounts	114	(14)
Write-offs	0	0
Allowance, end of period	$ 185	$ 71