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Commitments and Contingencies - Additional Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Commitments And Contingencies [Line Items] |  |  |  |
Legal settlement expense |  | $ 10,000,000 |  | $ 10,000,000
Insurance recovery in operating expenses | $ 1,600,000 |  | $ 1,628,000 |
Insurance recovery receivable | 1,628,000 |  | 1,628,000 |
Accrued legal settlement | $ 10,000,000 | $ 10,000,000 | 10,000,000 | 10,000,000
Operating lease expense |  |  | 353,000 | 368,000
Variable lease expense |  |  | $ 186,000 | $ 167,000
Wang V. Athira Pharma Inc., |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Lawsuit filing date |  |  | June 25, 2021 |
Name of plaintiff |  |  | Fan Wang and Hang Gao |
Jawandha V. Athira Pharma Inc., |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Lawsuit filing date |  |  | June 25, 2021 |
Name of plaintiff |  |  | Harshdeep Jawandha |
Slyne V. Athira Pharma Inc., |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Lawsuit filing date |  |  | June 25, 2021 |
Name of plaintiff |  |  | Timothy Slyne and Tai Slyne |
Athira Pharma Inc V Dr. Kawas |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Lawsuit filing date |  |  | August 12, 2022 |
Name of defendant |  |  | Dr. Kawas |
Laboratory and Office Facilities | Bothell, Washington |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Operating lease expiration month and year |  |  | 2027-08 |
Operating lease existence of option to extend |  |  | true |
Operating lease, additional term of contract | 5 years |  | 5 years |
Laboratory and Office Facilities | Bothell, Washington | Minimum |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Operating lease initial term | 6 years 3 months 18 days |  | 6 years 3 months 18 days |
Laboratory and Office Facilities | Bothell, Washington | Maximum |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Operating lease initial term | 7 years |  | 7 years |

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- Definition The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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