EMPLOYEE BENEFIT PLANS (Details) - Schedule of net periodic costs - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Net periodic (benefits) costs:
Service cost	$ 14
Amortization of:
Total net periodic (benefits) costs	3,148	$ 3,649	$ 1,993
Pension Plan [Member]
Net periodic (benefits) costs:
Interest cost	5,778	5,084	4,892
Expected return on plan assets	(10,331)	(10,736)	(10,943)
Amortization of:
Prior service costs	0	0	1
Actuarial loss	630	755	1,980
Total net periodic (benefits) costs	(3,923)	(4,897)	(4,070)
Supplemental Employee Retirement Plan [Member]
Net periodic (benefits) costs:
Interest cost	503	544	715
Expected return on plan assets	0	0	0
Amortization of:
Prior service costs	14	14	15
Actuarial loss	258	628	1,347
Total net periodic (benefits) costs	$ 775	$ 1,186	$ 2,077