Note 8 - Accrued Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2016

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	March 31			December 31,
	2016			2015
	(in thousands)
Defined Benefit Pension Plans	$	6,268		$	6,264
Supplemental Executive Retirement Plan		4,164			4,154
Deferred Compensation Plan		195			212
Total		10,627			10,630
Less current portion		(378	)		(378	)
Non-current portion of accrued retirement benefits	$	10,249		$	10,252

Schedule of Net Benefit Costs [Table Text Block]

	Three Months
	Ended March 31,
	2016			2015
	(in thousands)
Interest cost	$	708		$	691
Expected return on plan assets		(677	)		(826	)
Recognized actuarial loss		253			211
Pension and other postretirement expenses	$	284		$	76