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Commitments and Contingencies (Detail) - USD ($) shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract] |  |
Operating Leases, Rent Expense (in Dollars) | $ 1.0 | $ 1.2
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased | 201 |

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- References No definition available. + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
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