XML 11 R1.htm IDEA: XBRL DOCUMENT v3.26.1
Cover - shares
 3 Months Ended
Mar. 31, 2026
May 04, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 001-34190  
Entity Registrant Name HOME BANCORP, INC.  
Entity Incorporation, State or Country Code LA  
Entity Tax Identification Number 71-1051785  
Entity Address, Address Line One 503 Kaliste Saloom Road  
Entity Address, City or Town Lafayette  
Entity Address, State or Province LA  
Entity Address, Postal Zip Code 70508  
City Area Code 337  
Local Phone Number 237-1960  
Title of 12(b) Security Common Stock  
Trading Symbol HBCP  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   7,842,631
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Current Fiscal Year End Date --12-31  
Entity Central Index Key 0001436425