INCOME TAXES - Effective income tax rate (Details)	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax rate	21.00%	21.00%
State and local income taxes, net of Federal tax benefit, if applicable	3.30%	2.60%
Loss on Fair Value Remeasurement of Embedded Derivative	0.00%	(2.90%)
Goodwill	(3.50%)	(16.40%)
Impact of foreign operations	(0.30%)	0.30%
Sale of Israel	(0.008)	0
Other	1.10%	(0.70%)
Valuation allowance changes	(5.20%)	0.40%
Effective income tax rate	15.60%	4.30%