Note 10 - Borrowed Funds (Tables)

12 Months Ended

Dec. 31, 2012

Schedule Of Long Term Securities Sold Under Agreements To Repurchase [Table Text Block]

(Dollars in millions)	Fixed-to-floating																		Floating-to-fixed						Total
Rate type	Float Rate																		Fixed Rate
Rate index	8% minus 3 month LIBOR
Maximum rate		3.79	%		3.53	%		3.50	%		3.50	%		3.53	%		3.25	%
Minimum rate		0.0	%		0.0	%		0.0	%		0.0	%		0.0	%		0.0	%
No. of agreements		3			1			4			3			1			1			3			4			20
Amount	$	150.0		$	50.0		$	200.0		$	150.0		$	50.0		$	50.0		$	200.0		$	200.0		$	1,050.0
Weighted average rate		3.78	%		3.53	%		3.50	%		3.50	%		3.53	%		3.25	%		4.69	%		5.00	%		4.04	%
Final maturity		2014			2014			2014			2015			2015			2015			2014			2017

Schedule of Repurchase Agreements [Table Text Block]

Maturity	No. of Agreements		Amount (In thousands)		Weighted Average Interest Rate
3 years to 5 years		2	$	100,000		2.71	%
Over 5 years		2		100,000		2.86	%
Total		4	$	200,000		2.78	%

Summary Of Comparative Data Of Securities Sold Under Agreements To Repurchase [Table Text Block]

	2012			2011			2010
	(Dollars in thousands)
Average amount outstanding during the year (1)	$	1,361,475		$	1,448,363		$	1,560,215
Maximum amount outstanding at month-end (2)		1,400,000			1,559,000			1,566,000
Balance, December 31		1,250,000			1,400,000			1,561,000
Rate, December 31		3.84	%		4.14	%		4.18	%
Weighted average interest rate for the year		4.09	%		4.19	%		4.24	%

Schedule of Federal Home Loan Bank, Advances, by Branch of FHLB Bank [Table Text Block]

	2012					2011
Maturity	Amount (In thousands)		Weighted Average Interest Rate			Amount (In thousands)		Weighted Average Interest Rate
Within 90 days	$	125,000		0.28	%	$	-		0.00	%
91 days through 365 days		-		0.00	%		225,000		2.08	%
4 - 5 years		21,200		1.38	%		-		-
	$	146,200		0.44	%	$	225,000		2.08	%