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Acquisitions - Additional Information (Detail) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jul. 02, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019
Business Acquisition [Line Items] |  |  |  |
Revenue |  | $ 105,136,000 | $ 94,864,000 | $ 100,077,000
Net (loss) income |  | 4,237,000 | $ 1,123,000 | $ 7,592,000
Acquisition transaction, integration and other costs |  | 1,049,000 |  |
Vetex Medical Limited [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash paid | $ 39,900,000 |  |  |
Deferred consideration, contractual value | $ 3,500,000 |  |  |
Installment payment beginning period | 2024 |  |  |
Installment payment ending period | 2027 |  |  |
Contingent consideration, contractual value | $ 3,500,000 |  |  |
Contingency period ending year | 2027 |  |  |
Revenue |  | 0 |  |
Net (loss) income |  | (900,000) |  |
Acquisition transaction, integration and other costs |  | $ 1,000,000.0 |  |
Vetex Medical Limited [Member] | Developed Technology [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Acquired intangible assets amortized on straight-line basis, estimated useful life |  | 12 years |  |
Vetex Medical Limited [Member] | Secured Revolving Credit Facility [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business combination, consideration transferred, liabilities incurred | $ 10,000,000.0 |  |  |

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