    <SEC-DOCUMENT>0001436425-22-000044-index.html : 20220701
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    <ACCEPTANCE-DATETIME>20220630190044
    ACCESSION NUMBER:		0001436425-22-000044
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		21
    CONFORMED PERIOD OF REPORT:	20220630
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20220701
    DATE AS OF CHANGE:		20220630

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			HOME BANCORP, INC.
    		CENTRAL INDEX KEY:			0001436425
    		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
    		IRS NUMBER:				711051785
    		STATE OF INCORPORATION:			LA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-34190
    		FILM NUMBER:		221059136

    	BUSINESS ADDRESS:
    		STREET 1:		503 KALISTE SALOOM ROAD
    		CITY:			LAFAYETTE
    		STATE:			LA
    		ZIP:			70508
    		BUSINESS PHONE:		(337) 237-1960

    	MAIL ADDRESS:
    		STREET 1:		503 KALISTE SALOOM ROAD
    		CITY:			LAFAYETTE
    		STATE:			LA
    		ZIP:			70508
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    <SEQUENCE>1
    <FILENAME>hbcp-20220630.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: hbcp-20220630.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.1
    <SEQUENCE>2
    <FILENAME>exhibit41-indenture.htm
    <DESCRIPTION>EX-4.1
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    <DESCRIPTION>EX-4.2
    <TEXT>
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    <SEQUENCE>4
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    <DESCRIPTION>EX-10.1
    <TEXT>
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    <DOCUMENT>
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    <SEQUENCE>5
    <FILENAME>exhibit102-registrationrig.htm
    <DESCRIPTION>EX-10.2
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    <DOCUMENT>
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    <SEQUENCE>6
    <FILENAME>homebancorpprivateoffering.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
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    <TYPE>EX-101.SCH
    <SEQUENCE>7
    <FILENAME>hbcp-20220630.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
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    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>image_0.jpg
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    <SEQUENCE>11
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    <SEQUENCE>13
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    <SEQUENCE>14
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
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    <SEQUENCE>15
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    <TEXT>
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    <TYPE>EXCEL
    <SEQUENCE>16
    <FILENAME>Financial_Report.xlsx
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    <TEXT>
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    <SEQUENCE>17
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    <TEXT>
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    <SEQUENCE>18
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    <TEXT>
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    <TYPE>XML
    <SEQUENCE>19
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    <TYPE>JSON
    <SEQUENCE>22
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    <TEXT>
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    <SEQUENCE>23
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