v3.25.2
Document and Entity Information
Jun. 24, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 24, 2025
Entity File Number 333-282067
Entity Registrant Name Security Midwest Bancorp, Inc.
Entity Central Index Key 0002036060
Entity Incorporation, State or Country Code MD
Entity Tax Identification Number 99-4917712
Entity Address, Address Line One 510 East Monroe
Entity Address, City or Town Springfield
Entity Address, State or Province IL
Entity Address, Postal Zip Code 62701
City Area Code 217
Local Phone Number 789-3500
Entity Emerging Growth Company true
Entity Ex Transition Period false
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(g) Security NONE
No Trading Symbol Flag true