Note 6 - Accrued Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	2019			2018
	(in thousands)
Defined benefit pension plans	$	7,658		$	7,971
Non-qualified retirement plans		2,209			2,065
Total		9,867			10,036
Less current portion		(165	)		(165	)
Non-current portion of accrued retirement benefits	$	9,702		$	9,871

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

	2019			2018
	(in thousands)
Change in benefit obligations:
Benefit obligations at beginning of year	$	51,306		$	56,453
Interest cost		2,096			1,974
Actuarial loss (gain)		4,706			(3,096	)
Benefits paid		(3,980	)		(4,025	)
Benefit obligations at end of year		54,128			51,306
Change in plan assets:
Fair value of plan assets at beginning of year		41,290			48,442
Actual return on plan assets		6,814			(3,114	)
Employer reimbursement for retirement benefits		-			(118	)
Employer contributions		160			105
Benefits paid		(3,980	)		(4,025	)
Fair value of plan assets at end of year		44,284			41,290
Funded status	$	(9,844	)	$	(10,016	)
Accumulated benefit obligations	$	54,128		$	51,306

Defined Benefit Plan, Assumptions [Table Text Block]

Weighted average assumptions used to determine benefit obligations at December 31st:
Discount rate	3.10%	-	3.14%	4.28%
Expected long-term return on plan assets		5.00%		5.00%
Rate of compensation increase		n/a		n/a

Weighed average assumptions used to determine net periodic benefit cost:	2019		2018
Discount rate		4.28%	3.59%	-	3.64%
Expected long-term return on plan assets		5.00%		5.00%
Rate of compensation increase		n/a		n/a

Schedule of Net Benefit Costs [Table Text Block]

	2019			2018
	(in thousands)
Pension and other benefits:
Interest cost	$	2,096		$	1,974
Expected return on plan assets		(1,965	)		(2,319	)
Recognized net actuarial loss		865			786
Pension expense	$	996		$	441
Other changes in plan assets and benefit obligations recognized in comprehensive income:
Net (gain) loss	$	(141	)	$	2,314
Recognized gain		(865	)		(764	)
Total recognized (gain) loss in comprehensive income	$	(1,006	)	$	1,550

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

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

	2018 Fair Value Measurements (in thousands)
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Total
AHGT pooled equity funds	$	-	$	10,665	$	10,665
AHGT pooled fixed income funds		-		29,635		29,635
Cash management funds		-		990		990
	$	-	$	41,290	$	41,290

Schedule of Expected Benefit Payments [Table Text Block]

2020			$	4,080
2021			$	3,985
2022			$	3,870
2023			$	3,754
2024			$	3,652
2025	-	2029	$	16,605