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Summary of Significant Accounting Policies (Details) $ in Millions	Jul. 02, 2025 USD ($)
Shelf Registration
Product Information [Line Items]
Capital to be raised from the shelf registration	$ 150

X

- Definition

Sale Of Stock, Offering Amount Authorized

+ References

No definition available.

+ Details

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Namespace Prefix:	hwbk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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_ProductInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=hwbk_ShelfRegistrationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: