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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Sep. 30, 2019
Payables And Accruals [Abstract]    
Ad valorem taxes $ 2,057 $ 2,117
Accrued interest 1,020 1,110
Accrued employee wages and benefits 2,214 2,525
Accrued dividends 674 448
Accrued contractual obligation associated with sale of real estate   402
Consulting and separation charges 146 400
Accrued insurance 636 544
Other accrued liabilities 348 223
Total accrued liabilities $ 7,095 $ 7,769