Note 9 - Postretirement Medical Benefits (Tables)

9 Months Ended

Sep. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
(In thousands)	2014			2013		2014			2013
Service cost	$	121		$	157	$	362		$	472
Interest cost		142			138		427			414
Recognized prior service cost		51			65		155			193
Recognized net actuarial gain		(15	)		-		(47	)		-
Net periodic benefit cost	$	299		$	360	$	897		$	1,079