Note 13 - Intermittent Severance Plan (Tables)

9 Months Ended

Sep. 30, 2016

Intermittent Severance Plan [Member]

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Intermittent Severance Plan Cost
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2016		2015		2016		2015
Service cost	$	4	$	5	$	12	$	15
Interest Cost		4		3		10		9
Net periodic intermittent severance cost	$	8	$	8	$	22	$	24

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2016			2015			2016			2015
Service cost	$	16		$	17		$	49		$	51
Interest cost		17			15			50			46
Expected return on plan assets		(16	)		(17	)		(49	)		(51	)
Amortization of net actuarial loss and prior service cost		1			2			5			5
Net periodic pension cost	$	18		$	17		$	55		$	51