Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
Fair Value Measurements [Abstract]
Transfers in or out of Level 1, Level 2 or Level 3 fair value measurements during the periods	$ 0	$ 0

Amount of transfers of assets and liabilities measured on a recurring basis in or out of Level 1, Level 2, or Level 3.

No definition available.

Name:	cvrx_FairValueLevel1ToLevel2ToLevel3TransfersAmount
Namespace Prefix:	cvrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant