Note 9 - Borrowed Funds (Details) - Callable Securities Sold Under Agreements to Repurchase (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Note 9 - Borrowed Funds (Details) - Callable Securities Sold Under Agreements to Repurchase [Line Items]
No. of agreements	4
Amount (in Dollars)	$ 200,000
Weighted average rate	2.78%
Fixed to Floating Fifty Million With One Agreement at Three Point Seven Five Percent [Member] | Callable [Member]
Note 9 - Borrowed Funds (Details) - Callable Securities Sold Under Agreements to Repurchase [Line Items]
Maximum rate	3.75%
Minimum rate	0.00%
No. of agreements	1
Amount (in Dollars)	50,000
Weighted average rate	3.75%
Fixed to Floating One Hundred Million With Two Agreements at Three Point Five Percent [Member] | Callable [Member]
Note 9 - Borrowed Funds (Details) - Callable Securities Sold Under Agreements to Repurchase [Line Items]
Maximum rate	3.50%
Minimum rate	0.00%
No. of agreements	2
Amount (in Dollars)	100,000
Weighted average rate	3.50%
Fixed to Floating Fifty Million With One Agreement at Three Point Five Percent [Member] | Callable [Member]
Note 9 - Borrowed Funds (Details) - Callable Securities Sold Under Agreements to Repurchase [Line Items]
Maximum rate	3.50%
Minimum rate	0.00%
No. of agreements	1
Amount (in Dollars)	50,000
Weighted average rate	3.50%
Floating to Fixed One Hundred Million [Member] | Callable [Member]
Note 9 - Borrowed Funds (Details) - Callable Securities Sold Under Agreements to Repurchase [Line Items]
No. of agreements	1
Amount (in Dollars)	100,000
Weighted average rate	4.78%
Floating To Fixed Two Hundred Million [Member] | Callable [Member]
Note 9 - Borrowed Funds (Details) - Callable Securities Sold Under Agreements to Repurchase [Line Items]
No. of agreements	4
Amount (in Dollars)	200,000
Weighted average rate	5.00%
Callable [Member]
Note 9 - Borrowed Funds (Details) - Callable Securities Sold Under Agreements to Repurchase [Line Items]
No. of agreements	9
Amount (in Dollars)	$ 500,000
Weighted average rate	4.38%