Note 7 - Accrued Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	2023			2022
	(in thousands)
Defined benefit pension plan	$	(33	)	$	1,023
Non-qualified retirement plan		1,725			1,731
Total		1,692			2,754
Less current portion		(142	)		(142	)
Non-current portion of accrued retirement benefits	$	1,550		$	2,612

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

	2023			2022
	(in thousands)
Change in benefit obligations:
Benefit obligations at beginning of year	$	16,537		$	40,182
Interest cost		783			1,034
Actuarial gain		(580	)		(7,772	)
Benefits paid		(1,188	)		(16,907	)
Benefit obligations at end of year		15,552			16,537
Change in plan assets:
Fair value of plan assets at beginning of year		13,783			32,103
Actual return on plan assets		1,137			(7,241	)
Employer contributions		128			5,828
Benefits paid		(1,188	)		(16,907	)
Fair value of plan assets at end of year		13,860			13,783
Funded status	$	(1,692	)	$	(2,754	)
Accumulated benefit obligations	$	(15,552	)	$	16,537

Weighted average assumptions to determine benefit obligations:
Discount rate	4.90	-	4.95%	5.11	-	5.14%
Expected long-term return on plan assets		5.25%			5.00%
Rate of compensation increase		n/a			n/a

Schedule of Net Benefit Costs [Table Text Block]

	2023			2022
	(in thousands)
Pension and other benefits:
Interest cost	$	783		$	1,034
Expected return on plan assets		(657	)		(1,226	)
Recognized net actuarial loss		310			585
Settlement expense		-			7,492
Pension expense	$	436		$	7,885
Other changes in plan assets and benefit obligations recognized in comprehensive income:
Net loss (gain)	$	(1,060	)	$	696
Amortization of recognized loss		(310	)		(8,077	)
Total recognized gain in comprehensive income	$	(1,370	)		(7,381	)

Defined Benefit Plan, Assumptions [Table Text Block]

Weighted average assumptions used to determine net periodic benefit cost:	2023			2022
Discount rate	5.11	-	5.14%		2.69	-	2.74%
Expected long-term return on plan assets		5.00%				4.00%
Rate of compensation increase		n/a				n/a

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	2023 Fair Value Measurements (in thousands)
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Measured at NAV as a practical expedient		Total
ACIT equity funds	$	-	$	760	$	-	$	760
ACIT fixed income funds		-		12,002		70		12,072
Cash management funds		-		1,028		-		1,028
	$	-	$	13,790	$	70	$	13,860

	2022 Fair Value Measurements (in thousands)
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Measured at NAV as a practical expedient		Total
ACIT equity funds	$	-	$	631	$	828	$	1,459
ACIT fixed income funds		-		10,666		261		10,927
Cash management funds		-		1,397		-		1,397
	$	-	$	12,694	$	1,089	$	13,783

Schedule of Expected Benefit Payments [Table Text Block]

Years ending December 31,
2023	$	1,394
2024	$	1,373
2025	$	1,346
2026	$	1,316
2027	$	1,277
2028-2032	$	5,851