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Long-term Debt - Schedule of Long-term Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Sep. 30, 2017
Debt Instrument [Line Items]    
Total debt $ 128,947 $ 124,949
Less unamortized debt issuance costs (1,734) (597)
Less current portion (12,328) (17,440)
Total long-term debt 114,885 106,912
Notes payable One [Member]    
Debt Instrument [Line Items]    
Total debt 2,358
Notes Payable Two [Member]    
Debt Instrument [Line Items]    
Total debt 95
Notes Payable Three [Member]    
Debt Instrument [Line Items]    
Total debt 1,115 1,157
Notes Payable Four [Member]    
Debt Instrument [Line Items]    
Total debt 4,510
Notes Payable Five [Member]    
Debt Instrument [Line Items]    
Total debt 1,120
Notes Payable Six [Member]    
Debt Instrument [Line Items]    
Total debt 6,941
Notes Payable Seven [Member]    
Debt Instrument [Line Items]    
Total debt 6,423
Notes Payable Eight [Member]    
Debt Instrument [Line Items]    
Total debt 1,679
Notes Payable Nine [Member]    
Debt Instrument [Line Items]    
Total debt 2,740
Notes Payable Ten [Member]    
Debt Instrument [Line Items]    
Total debt 5,111 5,613
Notes Payable Eleven [Member]    
Debt Instrument [Line Items]    
Total debt 4,484
Notes Payable Twelve [Member]    
Debt Instrument [Line Items]    
Total debt 504
Notes Payable Thirteen [Member]    
Debt Instrument [Line Items]    
Total debt 5,320
Notes Payable Fourteen [Member]    
Debt Instrument [Line Items]    
Total debt 1,037
Notes Payable Fifteen [Member]    
Debt Instrument [Line Items]    
Total debt 1,777
Notes Payable Sixteen [Member]    
Debt Instrument [Line Items]    
Total debt 10,437 10,620
Notes Payable Seventeen [Member]    
Debt Instrument [Line Items]    
Total debt 4,303
Notes Payable Eighteen [Member]    
Debt Instrument [Line Items]    
Total debt 9,672
Notes Payable Nineteen [Member]    
Debt Instrument [Line Items]    
Total debt 4,651
Notes Payable Twenty [Member]    
Debt Instrument [Line Items]    
Total debt 1,894
Notes Payable Twenty One [Member]    
Debt Instrument [Line Items]    
Total debt 7,907 8,267
Notes Payable Twenty Two [Member]    
Debt Instrument [Line Items]    
Total debt 6,547 9,671
Notes Payable Twenty Three [Member]    
Debt Instrument [Line Items]    
Total debt 927 941
Notes Payable Twenty Four [Member]    
Debt Instrument [Line Items]    
Total debt 5,440 5,440
Notes Payable Twenty Five [Member]    
Debt Instrument [Line Items]    
Total debt 3,025 5,000
Notes Payable Twenty Six [Member]    
Debt Instrument [Line Items]    
Total debt 14,886 15,291
Notes Payable Twenty Seven [Member]    
Debt Instrument [Line Items]    
Total debt 4,664 3,441
Notes Payable Twenty Eight [Member]    
Debt Instrument [Line Items]    
Total debt 56,645
Notes Payable Twenty Nine [Member]    
Debt Instrument [Line Items]    
Total debt 7,024
Notes Payable Thirty [Member]    
Debt Instrument [Line Items]    
Total debt 2,219
Notes Payable Thirty One [Member]    
Debt Instrument [Line Items]    
Total debt $ 3,000