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Note 19 - Subsequent Event (Details Textual) $ in Millions | Apr. 18, 2020 USD ($)
--- | ---
Subsequent Event [Member] |
Proceeds From Paycheck Protection Program Under CARES Act | $ 6.1

X
- Definition The cash inflow received from loan funding under the Paycheck Protection Program which was established under the Coronavirus Aid, Relief and Economic Security (CARES) Act in March 2020. + References No definition available. + Details
Name: | hbio_ProceedsFromPaycheckProtectionProgramUnderCARESAct
Namespace Prefix: | hbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |