Note 10 - Retirement and Postretirement Plans (Details) - Components of Net Pension Cost (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Plan, Defined Benefit [Member]
Note 10 - Retirement and Postretirement Plans (Details) - Components of Net Pension Cost [Line Items]
Service cost	$ 170	$ 150	$ 150
Interest cost	3,312	615	667
Expected return on plan assets	(3,509)	(588)	(548)
Amortization of net loss	35
Net periodic benefit cost	8	177	269
Other Pension Plan, Postretirement or Supplemental Plans, Defined Benefit [Member]
Note 10 - Retirement and Postretirement Plans (Details) - Components of Net Pension Cost [Line Items]
Service cost	11
Interest cost	134
Net periodic benefit cost	$ 145