Note 11 - Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Variable Interest Rate [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt instrument, fair value	$ 128.7	$ 129.4
Fixed Interest Rate [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt instrument, fair value	50.2	50.6
Debt instrument carrying value	51.3	50.7
Interest Rate Cap and Interest Rate Swap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of derivative assets	$ 2.2
Interest Rate Swap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of interest rate swap liability		0.4
Maximum [Member] | Interest Rate Cap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of derivative assets		$ 0.1