Medical Equipment (Details Textual) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Medical Equipment [Abstract]
Depreciation Expense Related to Medical Equipment	$ 2.4	$ 2.3	$ 7.0	$ 6.7

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