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OTHER LONG-TERM ASSETS (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Sep. 30, 2018
Other long-term assets [Abstract]    
Life insurance $ 3,959 $ 0
Long-term contract assets 1,286 1,548
Long-term SERP Investment 1,242 1,137
Prepaid umamortized debt issuance cost 837 0
Other long-term assets 2,915 1,979
Total 10,239 $ 4,664
Long-term liability, SERP investments $ 1,242