Note 17 - Pension and Other Benefits - Schedule of Changes in Fair Value of Plan Assets (Details) - Pension Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair value	$ 15,704	$ 14,614	$ 13,257
Fair Value, Inputs, Level 1 [Member]
Fair value	15,704	14,614
Fair Value, Inputs, Level 2 [Member]
Fair value	0	0
Fair Value, Inputs, Level 3 [Member]
Fair value	0	0
Defined Benefit Plan, Cash [Member]
Fair value	393	201
Defined Benefit Plan, Cash [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value	393	201
Defined Benefit Plan, Cash [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value	0	0
Defined Benefit Plan, Cash [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value	0	0
Defined Benefit Plan, Equity Securities, US [Member]
Fair value	10,952	9,647
Defined Benefit Plan, Equity Securities, US [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value	10,952	9,647
Defined Benefit Plan, Equity Securities, US [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value	0	0
Defined Benefit Plan, Equity Securities, US [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value	0	0
Defined Benefit Plan, Equity Securities, Non-US [Member]
Fair value	475	654
Defined Benefit Plan, Equity Securities, Non-US [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value	475	654
Defined Benefit Plan, Equity Securities, Non-US [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value	0	0
Defined Benefit Plan, Equity Securities, Non-US [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value	0	0
Cash and Other Alternative Investments [Member]
Fair value	3,807	4,012
Cash and Other Alternative Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value	3,807	4,012
Cash and Other Alternative Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value	0	0
Cash and Other Alternative Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value	0	0
Commodity Funds [Member]
Fair value	52	62
Commodity Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value	52	62
Commodity Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value	0	0
Commodity Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value	0	0
Employee Benefit Plan, Real Estate [Member]
Fair value	25	38
Employee Benefit Plan, Real Estate [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value	25	38
Employee Benefit Plan, Real Estate [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value	0	0
Employee Benefit Plan, Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value	$ 0	$ 0