v3.26.1
Document And Entity Information - shares
9 Months Ended
Sep. 30, 2025
Nov. 14, 2025
Document Information [Line Items]    
Document Type 10-Q/A  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2025  
Document Transition Report false  
Entity File Number 333-284191  
Entity Registrant Name Steele Bancorp, Inc.  
Entity Incorporation, State or Country Code PA  
Entity Tax Identification Number 23-2362874  
Entity Address, Address Line One 250 East Chestnut Street  
Entity Address, City or Town Mifflinburg  
Entity Address, State or Province PA  
Entity Address, Postal Zip Code 17844  
City Area Code 570  
Local Phone Number 966-1041  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding (in shares)   3,405,061
Amendment Description EXPLANATORY NOTE  
Entity Central Index Key 0000779227  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q3  
Amendment Flag true