XML 12 R1.htm IDEA: XBRL DOCUMENT v3.20.4
Document And Entity Information - shares
 6 Months Ended
Dec. 31, 2020
Feb. 09, 2021
Document Information Line Items    
Entity Registrant Name Kentucky First Federal Bancorp  
Document Type 10-Q  
Current Fiscal Year End Date --06-30  
Entity Common Stock, Shares Outstanding   8,244,215
Amendment Flag false  
Entity Central Index Key 0001297341  
Entity Current Reporting Status Yes  
Entity Filer Category Non-accelerated Filer  
Document Period End Date Dec. 31, 2020  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q2  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity File Number 0-51176  
Entity Incorporation, State or Country Code KY  
Entity Interactive Data Current Yes