OTHER SUPPLEMENTAL INFORMATION - Noncash Transactions (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Costs to issue stock included in prepaid expenses and other current assets	$ 1,442
Costs for additions to property and equipment in accounts payable	26	$ 113
Costs to issue debt included in accounts payable	1,096	$ 775
Costs to issue stock included in accounts payable	$ 995