Note 9 - Long-term Debt - Schedule of Interest and Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Interest	$ 2,050	$ 2,050	$ 4,100	$ 3,779
Amortization	$ 145	$ 157	$ 289	$ 236

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration