Note 6 - Accrued Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	2018			2017
	(in thousands)
Defined benefit pension plans	$	7,971		$	5,812
Non-qualified retirement plans		2,065			2,219
Total		10,036			8,031
Less current portion		(165	)		(164	)
Non-current portion of accrued retirement benefits	$	9,871		$	7,867

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

	2018			2017
	(in thousands)
Change in benefit obligations:
Benefit obligations at beginning of year	$	56,453		$	56,378
Interest cost		1,974			2,216
Actuarial loss (gain)		(3,096	)		2,074
Benefits paid		(4,025	)		(4,216			)
Benefit obligations at end of year		51,306			56,452
Change in plan assets:
Fair value of plan assets at beginning of year		48,442			47,176
Actual return on plan assets		(3,114	)		5,531
Employer reimbursement for retirement benefits		(118	)		(230			)
Employer contributions		105			181
Benefits paid		(4,025	)		(4,216			)
Fair value of plan assets at end of year		41,290			48,442
Funded status	$	(10,016	)	$	(8,010			)
Accumulated benefit obligations	$	51,306		$	56,452
Weighted average assumptions used to determine benefit obligations at December 31:
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]

	2018			2017
	(in thousands)
Pension and other benefits:
Interest cost	$	1,974		$	2,216
Expected return on plan assets		(2,319	)		(2,255	)
Recognized net actuarial loss		764			840
Settlement/Curtailment Expense		-			-
Pension expense	$	419		$	801
Other changes in plan assets and benefit obligations recognized in comprehensive income:
Net gain	$	2,314		$	(1,201	)
Recognized gain		(764	)		(840	)
Total recognized gain in comprehensive income	$	1,550		$	(2,041	)

Schedule of Assumptions Used [Table Text Block]

Weighted average assumptions used to determine net periodic benefit cost:	2018					2017
Pension benefits:
Discount rate		3.59%	-	3.64	%		4.07%	-	4.14	%
Expected long-term return on plan assets		5.00			%		5.00			%
Rate of compensation increase		n/a					n/a

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

	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

	2017 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	$	-	$	14,772	$	14,772
AHGT pooled fixed income funds		-		32,581		32,581
Cash management funds		-		1,089		1,089
	$	-	$	48,442	$	48,442

Schedule of Expected Benefit Payments [Table Text Block]

2019	$	4,208
2020		4,123
2021		4,025
2022		3,906
2023		3,790
2024 - 2028		17,265