Document And Entity Information - USD ($)	12 Months Ended
	Jul. 31, 2025	Nov. 13, 2025	Jan. 31, 2025
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jul. 31, 2025
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	881 West State Road
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			$ 1,563,000
Entity Common Stock, Shares Outstanding (in shares)		107,238,932
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	2025
Document Fiscal Period Focus	FY
Amendment Flag	false