Document And Entity Information - USD ($)	12 Months Ended
	Jul. 31, 2026	Nov. 03, 2026	Jan. 31, 2026
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jul. 31, 2026
Document Transition Report	false
Entity File Number	333-146934
Entity Registrant Name	NORTHERN MINERALS & EXPLORATION LTD.
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	98-0557171
Entity Address, Address Line One	1267 N 680 W
Entity Address, City or Town	Pleasant Grove
Entity Address, State or Province	UT
Entity Address, Postal Zip Code	84062
City Area Code	801
Local Phone Number	885-9260
Title of 12(b) Security	Common Stock
Trading Symbol	NMEX
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	true
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 15,068,960
Entity Common Stock, Shares Outstanding (in shares)		120,029,425
Auditor Name	Haynie & Company
Auditor Location	Salt Lake City, Utah
Auditor Firm ID	457
Entity Central Index Key	0001415744
Current Fiscal Year End Date	--07-31
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	FY
Amendment Flag	false