v3.26.1
Document And Entity Information - shares
 9 Months Ended
Mar. 31, 2026
May 15, 2026
Document Information Line Items    
Entity Central Index Key 0001297341  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Fiscal Year Focus 2026  
Document Transition Report false  
Entity File Number 0-51176  
Entity Registrant Name KENTUCKY FIRST FEDERAL BANCORP  
Entity Incorporation, State or Country Code X1  
Entity Tax Identification Number 61-1484858  
Entity Address, Address Line One 655 Main Street  
Entity Address, City or Town Hazard  
Entity Address, State or Province KY  
Entity Address, Postal Zip Code 41702  
City Area Code (502)  
Local Phone Number 223-1638  
Title of 12(b) Security Common Stock, $0.01 par value per share  
Trading Symbol KFFB  
Security Exchange Name NASDAQ  
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   8,086,715
Amendment Flag false  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --06-30