Note 6 - Leases - Lease Costs (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Operating leases (Year)		5 years 7 months 6 days	6 years
Financing leases (Year)		3 years	2 years 2 months 12 days
Operating leases		5.80%	5.40%
Financing leases		5.50%	3.30%
Total lease expense		$ 10,257	$ 10,149
Selling, General and Administrative Expenses [Member]
Operating lease cost(1)	[1]	8,006	7,573
Depreciation of property		120	124
Short-term lease cost(2)	[2]	2	307
Variable lease cost(3)	[3]	2,522	2,427
Less: Sublease income		(404)	(288)
Interest Income [Member]
Interest on lease liabilities		$ 11	$ 6

[1] Operating lease costs include costs associated with fixed lease payments and index-based variable payments that qualified for lease accounting under ASC 842, Leases and complied with the practical expedients we elected. Expense related to fixed lease payments are recognized on a straight-line basis over the lease term.

[2] Leases with an initial term of 12 months or less are not recorded on the balance sheet and instead expensed on a straight-line basis over the lease term.

[3] Variable lease costs include costs that were not fixed at the lease commencement date and are not dependent on an index or rate. Variable lease payments are generally expensed as incurred, where applicable, and include certain non-lease components, such as maintenance, utilities, real estate taxes, insurance and other services provided by the lessor, and other charges included in the lease. In addition, certain of our equipment lease agreements include variable lease payments, which are based on the usage of the underlying asset. The variable portion of payments are not included in the initial measurement of the asset or lease liability due to uncertainty of the payment amount and are recorded as expense in the period incurred.