Note 6 - Accrued Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	2020			2019
	(in thousands)
Defined benefit pension plans	$	8,790		$	7,658
Non-qualified retirement plans		2,301			2,209
Total		11,091			9,867
Less current portion		(165	)		(165	)
Non-current portion of accrued retirement benefits	$	10,926		$	9,702

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

	2020					2019
	(in thousands)
Change in benefit obligations:
Benefit obligations at beginning of year	$	54,128				$			51,306
Interest cost		1,633							2,096
Actuarial loss		3,588							4,706
Benefits paid		(4,694			)				(3,980	)
Benefit obligations at end of year		54,655							54,128
Change in plan assets:
Fair value of plan assets at beginning of year		44,284							41,290
Actual return on plan assets		3,869							6,814
Employer contributions		128							160
Benefits paid		(4,694			)				(3,980	)
Fair value of plan assets at end of year		43,587							44,284
Funded status	$	(11,068			)	$			(9,844	)
Accumulated benefit obligations	$	54,655				$			54,128
Weighted average assumptions to determine benefit obligations:
Discount rate		2.28	-	2.35%			3.10	-	3.14%
Expected long-term return on plan assets			4.50%					4.75%
Rate of compensation increase			n/a					n/a

Schedule of Net Benefit Costs [Table Text Block]

	2020			2019
	(in thousands)
Pension and other benefits:
Interest cost	$	1,633		$	2,096
Expected return on plan assets		(2,020	)		(1,965	)
Recognized net actuarial loss		839			865
Pension expense	$	452		$	996
Other changes in plan assets and benefit obligations recognized in comprehensive income:
Net loss (gain)	$	1,739		$	(141	)
Amortization of recognized gain		(839	)		(865	)
Total recognized loss (gain) in comprehensive loss	$	900		$	(1,006	)

Defined Benefit Plan, Assumptions [Table Text Block]

Weighted average assumptions used to determine net periodic benefit cost:	2020			2019
Discount rate	3.10	-	3.14%	4.28%
Expected long-term return on plan assets		4.75%		5.00%
Rate of compensation increase		n/a		n/a

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

	2020 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	$	-	$	9,406		1,152	$	10,558
ACIT fixed income funds		-		29,958		2,108		32,066
Cash management funds		-		963		-		963
	$	-	$	40,327		3,260	$	43,587

	2019 Fair Value Measurements(in thousands)
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Total
AHGT equity funds	$	-	$	12,714	$	12,714
AHGT fixed income funds		-		30,548		30,548
Cash management funds		-		1,022		1,022
	$	-	$	44,284	$	44,284

Schedule of Expected Benefit Payments [Table Text Block]

	2021		$	3,992
	2022		$	3,878
	2023		$	3,767
	2024		$	3,660
	2025		$	3,556
2026	-	2030	$	16,065