Note 6 - Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

	Years Ended December 31,
(in thousands)	2024		2023
Current portion - retirement benefits and other	$	84	$	97
Long-term liabilities - retirement benefits and other		4,013		4,165
Post-retirement benefit obligation	$	4,097	$	4,262
Accumulated other comprehensive loss, before income taxes:
Net actuarial loss	$	2,694	$	3,024

Schedule of Changes in Accumulated Postemployment Benefit Obligations [Table Text Block]

	Years Ended December 31,
(in thousands)	2024			2023
Accumulated post-retirement benefit obligations at the beginning of the year	$	4,262		$	4,062
Interest cost		216			192
Actuarial (gain)/loss		(231	)		152
Benefits paid		(150	)		(144	)
Accumulated post-retirement benefit obligations at the end of the year	$	4,097		$	4,262

Schedule Of Financial information Of Plan [Table Text Block]

	Years Ended December 31,
(in thousands)	2024		2023
Interest cost	$	216	$	192
Recognized actuarial loss		97		87
Benefit cost	$	313	$	279
Benefits paid	$	150	$	144

Defined Benefit Plan, Assumptions [Table Text Block]

	Years Ended December 31,
	2024			2023
Discount rate used in determining:
Benefit obligation		5.000	%		5.250	%
Benefit cost		5.250	%		4.875	%

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]

	Years Ended December 31,
(in thousands)	2024			2023
Effect of 1% increase in health care trend rates:
Change in benefit obligation	$	603		$	543
Change in combined service and interest cost	$	32		$	31
Effect of 1% decrease of health care trend rates:
Change in benefit obligation	$	(497	)	$	(450	)
Change in combined service and interest cost	$	(26	)	$	(25	)

Schedule of Expected Benefit Payments [Table Text Block]

Years Ending December 31,	Amount
2025	$	145
2026		156
2027		167
2028		178
2029		188
2030-2034	$	1,084