XML 19 R1.htm IDEA: XBRL DOCUMENT v3.22.4
Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2022
Feb. 23, 2023
Jun. 30, 2022
Document Information [Line Items]      
Entity Central Index Key 0001172358    
Entity Registrant Name Dorchester Minerals, L.P.    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Document Transition Report false    
Entity File Number 000-50175    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 81-0551518    
Entity Address, Address Line One 3838 Oak Lawn Avenue, Suite 300    
Entity Address, City or Town Dallas    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 75219    
City Area Code 214    
Local Phone Number 559-0300    
Title of 12(b) Security Common Units Representing Limited Partnership Interest    
Trading Symbol DMLP    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 829,229,281
Entity Common Stock, Shares Outstanding   38,371,493  
Auditor Firm ID 248    
Auditor Name GRANT THORNTON LLP    
Auditor Location Dallas, Texas