Note 4 - Medical Equipment (Details Textual) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Depreciation Expense Related to Medical Equipment	$ 7.5	$ 6.2

Represents the amount of depreciation expense related to medical equipment recorded during the period.

No definition available.

Name:	infu_DepreciationExpenseRelatedToMedicalEquipment
Namespace Prefix:	infu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration