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Note 8 - Property, Plant and Equipment (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Fully Depreciated and Disposed of Property and Equipment Removed From Fixed Asset Records	$ 4.8

X

- Definition

The amount of fully depreciated and disposed of property and equipment removed from fixed asset records.

+ References

No definition available.

+ Details

Name:	hbio_FullyDepreciatedAndDisposedOfPropertyAndEquipmentRemovedFromFixedAssetRecords
Namespace Prefix:	hbio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration