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Cover Page - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Mar. 12, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-38595    
Entity Registrant Name First Western Financial, Inc.    
Entity Incorporation, State or Country Code CO    
Entity Tax Identification Number 37-1442266    
Entity Address, Address Line One 1900 16th Street    
Entity Address, Address Line Two Suite 1200    
Entity Address, City or Town Denver    
Entity Address, State or Province CO    
Entity Address, Postal Zip Code 80202    
City Area Code 303    
Local Phone Number 531.8100    
Title of 12(b) Security Common Stock, no par value    
Trading Symbol MYFW    
Security Exchange Name NASDAQ    
Entity Filer Category Accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 140.9
Entity Common Stock, Shares Outstanding   9,621,310  
Documents Incorporated by Reference
Portions of the registrant’s Definitive Proxy Statement relating to its 2024 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10-K to the extent stated herein. Such Definitive Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the registrant’s fiscal year ended December 31, 2023.
   
Entity Central Index Key 0001327607    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes