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Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Sep. 30, 2020
Selected Account Information    
Prepaid insurance $ 1,506 $ 4,884
Prepaid legal 761 735
Prepaid taxes and licenses 506 428
Prepaid rent 372 37
Other 917 404
Total prepaid expenses and other current assets $ 4,062 $ 6,488