Note 9 - Postretirement Medical Benefits (Tables)

3 Months Ended

Mar. 31, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

Three months ended March 31, (In thousands)	2014			2013
Service cost	$	121		$	157
Interest cost		142			138
Recognized prior service cost		52			64
Recognized net actuarial gain		(16	)		-
Net periodic benefit cost	$	299		$	359