Note 10 - Postretirement Medical Benefits (Tables)

9 Months Ended

Sep. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2013		2012		2013		2012
Service cost	$	157	$	155	$	472	$	463
Interest cost		138		152		414		456
Amortization of transition obligation		-		24		-		76
Recognized prior service cost		65		65		193		193
Recognized net actuarial loss		-		14		-		42
Net periodic benefit cost	$	360	$	410	$	1,079	$	1,230