Note 16 - Pension and Other Benefits - Schedule of Net Benefit Costs (Details) - Pension Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest cost	$ 311	$ 284	$ 364
Expected return on plan assets	(949)	(852)	(784)
Net amortization	66	299	301
Total net periodic pension income	(572)	(269)	(119)
Total unrealized (gain) loss recognized in other comprehensive income	(343)	0	112
Realized losses included in net income	(66)	(299)	(301)
Total recognized in net periodic pension income and other comprehensive income	$ (981)	$ (568)	$ (308)