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Supporting Financial Information - Accounts Receivable (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Document Period End Date | Sep. 30, 2016 |
Document Fiscal Year Focus | 2016 |
Total accounts receivable | $ 6,637 | $ 3,286
Less: Allowance for doubtful accounts | 0 | 0
Accounts receivable, net | 6,637 | 3,286
Billed Receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total accounts receivable | 5,265 | 2,498
Unbilled Receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total accounts receivable | $ 1,372 | $ 788

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