Note 13 - Employee Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [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,
	2014		2013		2014		2013		2014		2013		2014		2013
Service cost	$	16	$	18	$	32	$	37	$	2	$	3	$	5	$	7
Interest cost		38		32		76		66		9		9		18		19
Expected return on plan assets		(43)		(42)		(86)		(84)
Amortization of net loss												4				8
Amortization of prior service cost (credit)		1		1		3		2		(1)		(1)		(2)		(3)
Recognition of actuarial gain				(41)				(41)
Total pension and postretirement benefit expense (credit)	$	12	$	(32)	$	25	$	(20)	$	10	$	15	$	21	$	31