Note 13 - Employee Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2013

Pension and Other Postretirement Benefits Disclosure [Text Block]

Net Periodic Benefit Expense for Employee Retirement Plans [Table Text Block]

	Pension benefits								Postretirement benefits
	Three months ended June 30,				Six months ended June 30,				Three months ended June 30,				Six months ended June 30,
	2013		2012		2013		2012		2013		2012		2013		2012
Service cost	$	18	$	15	$	37	$	30	$	3	$	3	$	7	$	6
Interest cost		32		38		66		76		9		11		19		22
Expected return on plan assets (1)		(42)		(41)		(84)		(82)
Amortization of net loss (1)										4		4		8		8
Amortization of prior service cost		1		1		2		2		(1)		(1)		(3)		(2)
Recognition of actuarial gain (1)		(41)				(41)
Total pension and postretirement benefit expense (1)	$	(32)	$	13	$	(20)	$	26	$	15	$	17	$	31	$	34