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Note 6 - Related Party Transactions (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
The Multi Channel Systems Facility and Triangle BioSystems Lease Agreements [Member] |  |  |  |
Operating Lease, Expense | $ 0.1 | $ 0.1 | $ 0.2 | $ 0.2

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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
Name: | us-gaap_OperatingLeaseExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_LeaseContractualTermAxis=hbio_TheMultiChannelSystemsFacilityAndTriangleBiosystemsLeaseAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |