Annual report [Section 13 and 15(d), not S-K Item 405]

Cover

v3.25.1
Cover - USD ($)
 12 Months Ended
Dec. 31, 2024
Mar. 28, 2025
Jun. 30, 2024
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2024    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2024    
Current Fiscal Year End Date --12-31    
Entity File Number 000-55323    
Entity Registrant Name Mentor Capital, Inc.    
Entity Central Index Key 0001599117    
Entity Tax Identification Number 77-0395098    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 5964 Campus Court    
Entity Address, City or Town Plano    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 75093    
City Area Code 760    
Local Phone Number 788-4700    
Title of 12(g) Security Common Stock    
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 Small Business true    
Entity Emerging Growth Company true    
Elected Not To Use the Extended Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 1,373,789
Entity Common Stock, Shares Outstanding   21,686,105  
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 349    
Auditor Opinion [Text Block] We have audited the accompanying consolidated balance sheets of Mentor Capital, Inc. (the “Company”) as of December 31, 2024 and 2023, and the related consolidated income statements, changes in shareholders’ equity (deficit) and cash flows for the years then ended, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its consolidated income statements and its cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States of America.    
Auditor Name Spicer Jeffries LLP    
Auditor Location Denver, Colorado