XML 27 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Feb. 21, 2019
Jun. 30, 2018
Document and Entity Information [Abstract]      
Entity Registrant Name SB FINANCIAL GROUP, INC.    
Entity Central Index Key 0000767405    
Trading Symbol SBFG    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Document Type 10-K    
Document Period End Date Dec. 31, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Entity Well-Known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business true    
Entity Ex Transition Period false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 132.1
Entity Common Stock, Shares Outstanding   6,476,942