EMPLOYEE BENEFIT PLANS (Details) - Schedule of net periodic costs - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Net periodic (benefits) costs:
Service cost	$ 14
Pension Plan [Member]
Net periodic (benefits) costs:
Interest cost	5,084	$ 4,892	$ 5,465
Expected return on plan assets	(10,736)	(10,943)	(10,934)
Amortization of:
Prior service costs	0	1	1
Actuarial loss	755	1,980	1,131
Total net periodic (benefits) costs	(4,897)	(4,070)	(4,337)
Supplemental Employee Retirement Plan [Member]
Net periodic (benefits) costs:
Interest cost	544	715	1,243
Expected return on plan assets	0	0	0
Amortization of:
Prior service costs	14	15	19
Actuarial loss	628	1,347	1,224
Total net periodic (benefits) costs	$ 1,186	$ 2,077	$ 2,486