Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Summary of Bank Revolver (Details)

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Long-Term Debt - Summary of Bank Revolver (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Bank of America Revolver Loan    
Debt Instrument [Line Items]    
Cumulative borrowing during the period $ 87,771 $ 94,697
Cumulative repayment during the period 95,358 91,947
Maximum borrowed during the period $ 8,071 $ 8,531
Weighted average interest for the period 4.20% 3.79%
Total availability $ 14,914 $ 9,692
Total outstanding 13 4,852
Texas Capital Bank Revolver Loan    
Debt Instrument [Line Items]    
Cumulative borrowing during the period 74,356 76,191
Cumulative repayment during the period 75,648 76,819
Maximum borrowed during the period $ 11,932 $ 16,078
Weighted average interest for the period 4.55% 4.26%
Total availability $ 1,410 $ 108
Total outstanding $ 10,590 $ 11,892