Inventory - Summary of Inventories (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Raw materials	$ 1,922	$ 1,851
Goods in process	714	842
Finished goods	3,255	4,234
Inventories	$ 5,891	$ 6,927

Inventory goods ion process current and non current.

No definition available.

Name:	rkda_InventoryGoodsInProcessCurrentAndNonCurrent
Namespace Prefix:	rkda_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant