Note 11 - Debt (Details Textual) - USD ($) $ in Thousands	3 Months Ended		15 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024
Revolving Credit Facility [Member]
Long-Term Line of Credit	$ 60,000		$ 60,000
Credit and Security Agreement with KeyBank [Member]
Interest Expense, Debt	$ 400	$ 1,000
Debt, Weighted Average Interest Rate	2.47%		2.47%
Long-Term Debt, Percentage Bearing Variable Interest, Amount	$ 0		$ 0
Credit and Security Agreement with KeyBank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	175,000		$ 175,000
Debt Instrument, Term (Year)			5 years
Line of Credit Facility, Maximum Letters of Credit Capacity	10,000		$ 10,000
Line of Credit Facility, Maximum Swing Line Loan Capacity	5,000		5,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 115,000		$ 115,000