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Commitments and Contingencies - Additional Information (Detail) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 31, 2020 USD ($) Installment shares | Sep. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Sep. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Dec. 31, 2010 USD ($) Installment Program | Dec. 31, 2021 USD ($) | Jun. 30, 2005 USD ($)
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Other noncurrent liability |  | $ 2,000,000 |  |  |  | $ 2,000,000 |  |  | $ 2,070,000 |
Change in fair value of contingent consideration |  | (0) |  | $ (0) |  | $ (70,000) | $ (140,000) |  |  |
Anawah, Inc [Member] |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Contingent liability |  |  |  |  |  |  |  | $ 3,000,000.0 |  | $ 5,000,000.0
Date of merger and reorganization |  |  |  |  |  | Jun. 30, 2005 |  |  |  |
Restructuring activities, description |  |  |  |  |  | As of December 31, 2010, the Company ceased activities relating to three of the six Anawah product programs |  |  |  |
Number of development programs ceased | Installment |  |  |  |  |  |  |  | 3 |  |
Number of development programs | Program |  |  |  |  |  |  |  | 6 |  |
Other noncurrent liability |  | $ 2,000,000.0 |  |  |  | $ 2,000,000.0 |  |  |  |
Industrial Seed Innovations [Member] |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Operating leases, term of contract |  | 3 years |  |  |  | 3 years |  |  |  |
Remaining amount paid in multiple installments | $ 280,000 |  |  |  |  |  |  |  |  |
Change in fair value of contingent consideration |  |  | $ (31,000) |  | $ (140,000) |  |  |  |  |
Remaining contingent liability |  | $ 39,000 |  |  |  | $ 39,000 |  |  |  |
Business combination remaining contingent liability written-down |  |  |  |  |  | $ 0 |  |  |  |
Industrial Seed Innovations [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of annual installment of common stock shares payable | Installment | 2 |  |  |  |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Operating leases, term of contract |  | 1 year |  |  |  | 1 year |  |  |  |
Royalty payments due, percentage of net revenue as defined in the In-Licensing agreements |  |  |  |  |  | 2.00% |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Operating leases, term of contract |  | 5 years |  |  |  | 5 years |  |  |  |
Royalty payments due, percentage of net revenue as defined in the In-Licensing agreements |  |  |  |  |  | 15.00% |  |  |  |
Maximum [Member] | Industrial Seed Innovations [Member] | Common Stock [Member] | Revenue Milestone in 2022 [Member] |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Business combination, equity interest issuable upon achievement of revenue milestone | shares | 132,626 |  |  |  |  |  |  |  |  |

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