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Fair Value Measurements (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Sep. 30, 2018
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Executive savings plan assets | $ 738 | $ 747
Executive savings plan liabilities | (623) | (631)
Contingent consideration | (270) | (680)
Total fair value net asset (liability) | (155) | (564)
Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Executive savings plan assets | 738 | 747
Executive savings plan liabilities | (623) | (631)
Total fair value net asset (liability) | 115 | 116
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Contingent consideration | (270) | (680)
Total fair value net asset (liability) | $ (270) | $ (680)

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