XML 57 R44.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Common Stock - Schedule of Number of Common Stock Reserved for Future Issuance (Details) - shares | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Class Of Stock [Line Items] |  |
Number of common stock reserved for future issuance | 5,146,427 | 3,924,191
Exercise of Outstanding Options | 2015 and 2019 Plans |  |
Class Of Stock [Line Items] |  |
Number of common stock reserved for future issuance | 3,620,666 | 2,591,456
Issuance of Common Stock Options | 2019 Plan |  |
Class Of Stock [Line Items] |  |
Number of common stock reserved for future issuance | 922,826 | 975,135
Issuance of Common Stock Options | Employee Stock Purchase Plan |  |
Class Of Stock [Line Items] |  |
Number of common stock reserved for future issuance | 602,935 | 357,600

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_AwardTypeAxis=idya_ExerciseOfOutstandingOptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=idya_TwoThousandFifteenAndNineteenEquityIncentivePlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=idya_TwoThousandNineteenIncentiveAwardPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=idya_EmployeeStockPurchasePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |