InfuSystem Holdings, Inc. Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Debt (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Note 6 - Debt (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Long-term Debt, Total	$ 25,758	$ 28,391
Term Loan [Member]
Long-term Debt, Total	25,870	$ 28,511
Term Loan [Member] \| Credit Facility [Member]
Long-term Debt, Total	$ 25,900
LIBOR Rate	1.88%
Term Loan [Member] \| Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	2.75%
Debt Instrument, Interest Rate, Effective Percentage	4.63%
Term Loan [Member] \| Credit Facility [Member] \| Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	2.00%
Applicable Margin Rate	(1.00%)
Term Loan [Member] \| Credit Facility [Member] \| Maximum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	3.00%
Debt Instrument, Basis Spread on Variable Rate, Before Margin Rate	2.50%
Applicable Margin Rate	0.25%