Note 10 - Retirement and Postretirement Plans (Details) - Assumptions Used to Determine Net Period Pension Costs	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Plan, Defined Benefit [Member]
Note 10 - Retirement and Postretirement Plans (Details) - Assumptions Used to Determine Net Period Pension Costs [Line Items]
Discount rate	4.62%	4.55%	5.30%
Expected return on plan assets	7.50%	7.50%	7.50%
Other Pension Plan, Postretirement or Supplemental Plans, Defined Benefit [Member]
Note 10 - Retirement and Postretirement Plans (Details) - Assumptions Used to Determine Net Period Pension Costs [Line Items]
Discount rate	4.35%
Compensation increase rate	3.00%