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LEASES (Details)
12 Months Ended
Sep. 30, 2021
LEASES  
Lease term, operating lease 7 years
Renewal option, operating lease true
Renewal option, finance lease true
Facilities leases | Minimum  
LEASES  
Lease term, operating lease 2 years
Lease term, finance lease 2 years
Facilities leases | Maximum  
LEASES  
Lease term, operating lease 10 years
Lease term, finance lease 10 years
Equipment leases | Minimum  
LEASES  
Lease term, operating lease 30 months
Lease term, finance lease 30 months
Equipment leases | Maximum  
LEASES  
Lease term, operating lease 60 months
Lease term, finance lease 60 months