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Inventory - Summary of Inventories (Detail) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Inventory Disclosure [Abstract] |  |
Raw materials | $ 530 | $ 610
Goods in process | 133 |
Finished goods | 3,618 | 2,478
Inventories | $ 4,281 | $ 3,088

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- Definition Inventory current and non current net. + References No definition available. + Details
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Period Type: | instant

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- Definition Inventory goods ion process current and non current. + References No definition available. + Details
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Namespace Prefix: | rkda_
Data Type: | xbrli:monetaryItemType
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- Definition Inventory raw materials current and non-current. + References No definition available. + Details
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Namespace Prefix: | rkda_
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Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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