Fair Value Measurements - Fair value on a Recurring Basis (Details)	9 Months Ended
Sep. 30, 2021 USD ($) $ / shares
Fair Value Measurements
Trading price \| $ / shares	$ 24.25
Deemed dividend - Earnout Shares	$ 255,822,071
Net impact to additional paid-in capital	$ 0

The amount of deemed dividend due to Earnout shares that is an adjustment to net income apportioned to common stockholders.

No definition available.

Name:	nrxp_DeemedDividendEarnoutShares
Namespace Prefix:	nrxp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration