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Note 13 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Loss Contingency Accrual	$ 500
Director [Member] | Indemnification Agreements [Member]
Liability for Contingent Indemnification Obligations		$ 0

X

- Definition

Represents liability for contingent indemnification obligations.

+ References

No definition available.

+ Details

Name:	hbio_LiabilityForContingentIndemnificationObligations
Namespace Prefix:	hbio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-10

+ Details

Name:	us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	srt_TitleOfIndividualAxis=srt_DirectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=hbio_IndemnificationAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: