Note 10 - Union Bargaining Unit Intermittent Employees Severance Plan (Tables)

12 Months Ended

Dec. 31, 2015

Intermittent Severance Plan [Member]

Notes Tables

Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]

	2015		2014
Net actuarial loss	$	45	$	57

Schedule of Net Benefit Costs [Table Text Block]

	2015		2014
Service cost	$	19	$	17
Interest cost		14		16
Amortization of net loss		1		-
Settlement loss		5		-
Net periodic pension cost	$	39	$	33

Schedule of Assumptions Used [Table Text Block]

	2015		2014
Weighted average assumptions
Discount rate		3.80%		3.60%
Rate of compensation increase		1.65%		1.65%

Schedule of Expected Benefit Payments [Table Text Block]

Years Ending December 31,	(in thousands)
2016		12
2017		23
2018		29
2019		14
2020-2024		167

Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]

	2015		2014
Net actuarial loss	$	241	$	127
Prior service cost		-		2
	$	241	$	129

Schedule of Net Benefit Costs [Table Text Block]

	2015			2014
Service cost	$	69		$	62
Interest cost		62			61
Expected return on plan assets		(69	)		(66	)
Amortization of net actuarial loss and prior service cost		2			7
Net periodic pension cost	$	64		$	64

Schedule of Assumptions Used [Table Text Block]

	2015		2014
Pension benefit obligation:
Discount rate		4.20%		4.20%
Compensation increase		2.00%		2.00%
Net periodic pension cost:
Discount rate		4.20%		5.20%
Compensation increase		2.00%		2.00%
Expected return on plan assets		5.50%		5.50%

Schedule of Expected Benefit Payments [Table Text Block]

Years Ending December 31,	(in thousands)
2016		51
2017		55
2018		60
2019		65
2020		72
2021-2024		482