XML 31 R21.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Recent Accounting Pronouncements - Additional Information (Detail) | 9 Months Ended
--- | ---
Sep. 30, 2017
Maximum [Member] |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Percentage of increase in assets and liabilities | 1.00%

X
- Definition Percentage of increase in assets and liabilities. + References No definition available. + Details
Name: | hbcp_PercentageOfIncreaseInAssetsAndLiabilities
Namespace Prefix: | hbcp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |