Note 9 - Benefit Plans (Details) - Actual and Target Pension Plan Asset Allocation	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Investment description
Actual Allocation	100.00%	100.00%
Target Allocation	100.00%
Equity Securities [Member]
Investment description
Actual Allocation	59.00%	73.00%
Target Allocation	62.00%
Fixed Income Investments [Member]
Investment description
Actual Allocation	16.00%	22.00%
Target Allocation	18.00%
Other than Securities Investment [Member]
Investment description
Actual Allocation	25.00%	5.00%
Target Allocation	20.00%