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Warrants and Options - Summary of Warrants Issued to Purchase Common Stock (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2022
February 12, 2020 Service and Performance Warrants [Member] |
Class of Warrant or Right [Line Items] |
Warrant expiration month and year | 2022-02
February 3, 2020 Service and Performance Warrants [Member] |
Class of Warrant or Right [Line Items] |
Warrant expiration month and year | 2022-02

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- Definition Warrant expiration month and year. + References No definition available. + Details
Name: | rkda_WarrantExpirationMonthAndYear
Namespace Prefix: | rkda_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

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- 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_ClassOfWarrantOrRightLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=rkda_February122020ServiceAndPerformanceWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=rkda_February32020ServiceAndPerformanceWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |