Note 18 - Benefit Plans (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Cash Surrender Value of Life Insurance	$ 9,100,000
Defined Contribution Plan Maximum Percentage Of Base Earnings Qualifying For Pre-Tax Contributions	100.00%
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount	17,000
Defined Contribution Plan Parent Company Matching Contribution Percentage	100.00%
Defined Contribution Plan Percentage Of Base Earnings Qualifying For Parent Company Matching Contribution	6.00%
Defined Contribution Plan, Cost Recognized	2,900,000	3,500,000	3,500,000
Defined Benefit Plans and Other Postretirement Benefit Plans Catch up Adjustment Provision for Reporting Period [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount	$ 5,500