Note 5 - Balance Sheet Information (Details Textual) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Proceeds from Employee Retention Credit Refund	$ 3.6	$ 3.2

Represents information pertaining to proceeds from employee retention credits.

No definition available.

Name:	hbio_ProceedsFromEmployeeRetentionCreditRefund
Namespace Prefix:	hbio_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration