Note 7 - Leases (Details Textual) $ in Millions	Sep. 30, 2025 USD ($)
Lessee, Number of Operting LEases	2
Naples Lease [Member]
Lessee, Operating Lease, Base Monthly Rent	$ 6
Lessee, Operating Lease, Monthly Base Rent, Annual Escalation	3.00%
Lessee, Operating Lease, Common Area Maintenance Fee	$ 2
Lessee, Operating Lease, Monthly Taxes	1
Fort Myers Lease [Member]
Lessee, Operating Lease, Base Monthly Rent	$ 5
Lessee, Operating Lease, Monthly Base Rent, Annual Escalation	3.00%
Lessee, Operating Lease, Common Area Maintenance Fee	$ 2

The number of operating leases that the lessee currently has.

No definition available.

Name:	nrxp_LesseeNumberOfOpertingLeases
Namespace Prefix:	nrxp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Amount of base monthly rent expense for lessee's operating lease.

No definition available.

Name:	nrxp_LesseeOperatingLeaseBaseMonthlyRent
Namespace Prefix:	nrxp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The common area maintenance fee for the lessee's operating lease.

No definition available.

Name:	nrxp_LesseeOperatingLeaseCommonAreaMaintenanceFee
Namespace Prefix:	nrxp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The annual increase in monthly base rent, expressed as a percentage of current monthly base rent, for lessee's operating lease.

No definition available.

Name:	nrxp_LesseeOperatingLeaseMonthlyBaseRentAnnualEscalation
Namespace Prefix:	nrxp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

The amount of monthly taxes paid as part of the lessee's operating lease.

No definition available.

Name:	nrxp_LesseeOperatingLeaseMonthlyTaxes
Namespace Prefix:	nrxp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Name:	us-gaap_LeaseContractualTermAxis=nrxp_NaplesLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LeaseContractualTermAxis=nrxp_FortMyersLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: