Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities (Details)

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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Sep. 30, 2017
Payables and Accruals [Abstract]    
Ad valorem taxes $ 0 $ 2,648
Accrued interest 1,203 1,165
Accrued employee wages and benefits 1,169 1,320
Accrued dividends 494 494
Current portion of deferred retirement obligations 315 315
Accrued insurance 266 166
Other accrued liabilities 1,104 673
Total accrued liabilities $ 4,551 $ 6,781