Note 6 - Accrued Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	2015			2014
	(in thousands)
Defined Benefit Pension Plans	$	6,264		$	2,540
Supplemental Executive Retirement Plan		4,154			4,468
Deferred Compensation Plan		212			276
Total		10,630			7,284
Less current portion		(378	)		(391	)
Non-current portion of accrued retirement benefits	$	10,252		$	6,893

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

	2015			2014
	(in thousands)
Change in benefit obligations:
Benefit obligations at beginning of year	$	71,349		$	66,091
Interest cost		2,753			3,093
Actuarial (gain) loss		(2,783	)		6,577
Benefits paid		(4,467	)		(4,412	)
Benefit obligations at end of year		66,852			71,349
Change in plan assets:
Fair value of plan assets at beginning of year		64,341			45,178
Actual return on plan assets		(3,463	)		3,404
Employer reimbursement for retirement benefits		(271	)		-
Employer contributions		294			20,171
Benefits paid		(4,467	)		(4,412	)
Fair valu e of plan assets at end of year		56,434			64,341
Funded status	$	(10,418	)	$	(7,008	)
Accumulated benefit obligations	$	66,852		$	71,349

Schedule of Assumptions Used [Table Text Block]

Weighted average assumptions used to determine benefit obligations at December 31:
Discount rate	4.30%	-	4.44%	3.96%	-	4.07%
Expected long-term return on plan assets		7%			5.32%
Rate of compensation increase		n/a			n/a

Weighted average assumptions used to determine net periodic benefit cost:	2015			2014
Pension benefits:
Discount rate	3.96%	-	4.07%	4.68%	-	4.92%
Expected long-term return on plan assets		5.32%			7.00%
Rate of compensation increase		n/a			n/a

Schedule of Net Benefit Costs [Table Text Block]

	2015			2014
	(in thousands)
Pension and other benefits:
Interest cost	$	2,753		$	3,093
Expected return on plan assets		(3,306	)		(3,316	)
Recognized net actuarial loss		843			604
Pension expense	$	290		$	381
Other changes in plan assets and benefit obligations recognized in comprehensive income:
Net loss	$	3,986		$	6,486
Recognized loss		(893	)		(604	)
Total recognized loss in comprehensive income	$	3,093		$	5,882

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

	2015 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	$	-	$	8,120	$	8,120
AHGT pooled fixed income funds		-		46,069		46,069
Cash management funds		-		2,245		2,245
	$	-	$	56,434	$	56,434

	2014 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	$	-	$	9,884	$	9,884
AHGT pooled fixed income funds		-		51,483		51,483
Cash management funds		-		2,974		2,974
	$	-	$	64,341	$	64,341

Schedule of Expected Benefit Payments [Table Text Block]

	2016		$	4,618
	2017			4,564
	2018			4,519
	2019			4,522
	2020			4,544
2021	-	2025		22,039