Note 15 - Balance Sheet Offsetting (Details) - Financial Instruments that are Eligible for Offset in the Consolidated Balance Sheet (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Financial Instruments that are Eligible for Offset in the Consolidated Balance Sheet [Abstract]
Gross Amounts of Recognized Liabilities	$ 800,000	$ 1,250,000
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	800,000	1,250,000
Financial Instruments	0	0
Collateral Posted	(800,000)	(1,250,000)
Net Amount	$ 0	$ 0