Note 10 - Retirement Plans (Tables)

9 Months Ended

Sep. 30, 2015

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Three months ended						Nine months ended
	September 30,						September 30,
	2015			2014			2015			2014
Components of net periodic benefit cost
Interest cost	$	608		$	828		$	1,823		$	2,484
Expected return on plan assets		(718	)		(1,039	)		(2,153	)		(3,117	)
Recognized actuarial loss		202			130			608			390
Net periodic cost/(income)	$	92		$	(81	)	$	278		$	(243	)

	Three months ended						Nine months ended
	September 30,						September 30,
	2015			2014			2015			2014
Components of net periodic benefit cost
Service cost	$	193		$	166		$	585		$	519
Interest cost		146			218			442			682
Recognized actuarial loss		83			37			249			116
Amortization of prior service benefit		(2	)		(2	)		(5	)		(6	)
Net periodic benefit cost	$	420		$	419		$	1,271		$	1,311