Note 9 - Postretirement Medical Benefits (Tables)

6 Months Ended

Jun. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended					Six Months Ended
	June 30,					June 30,
(In thousands)	2014			2013		2014			2013
Service cost	$	120		$	158	$	241		$	315
Interest cost		143			138		285			276
Recognized prior service cost		52			64		104			128
Recognized net actuarial gain		(16	)		-		(32	)		-
Net periodic benefit cost	$	299		$	360	$	598		$	719