Note 13 - Employee Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Pension benefits				Postretirement benefits
	Three months ended March 31,				Three months ended March 31,
	2014		2013		2014		2013
Service cost	$	16	$	19	$	3	$	4
Interest cost		38		34		9		10
Expected return on plan assets		(43)		(42)
Amortization of net loss								4
Amortization of prior service cost (credit)		2		1		(1)		(2)
Total pension and postretirement benefit expense	$	13	$	12	$	11	$	16