Note 9 - Borrowed Funds (Details) - Securities Sold Under Agreements to Repurchase (Securities Sold under Agreements to Repurchase [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Note 9 - Borrowed Funds (Details) - Securities Sold Under Agreements to Repurchase [Line Items]
No. of Agreements	4
Amount (in Dollars)	$ 200,000
Weighted Average Interest Rate	2.78%
Maturing One to Three Years [Member] | Minimum [Member]
Note 9 - Borrowed Funds (Details) - Securities Sold Under Agreements to Repurchase [Line Items]
Maturity	1 year
Maturing One to Three Years [Member] | Maximum [Member]
Note 9 - Borrowed Funds (Details) - Securities Sold Under Agreements to Repurchase [Line Items]
Maturity	3 years
Maturing One to Three Years [Member]
Note 9 - Borrowed Funds (Details) - Securities Sold Under Agreements to Repurchase [Line Items]
No. of Agreements	2
Amount (in Dollars)	100,000
Weighted Average Interest Rate	2.71%
Maturing in Three to Five Years [Member] | Minimum [Member]
Note 9 - Borrowed Funds (Details) - Securities Sold Under Agreements to Repurchase [Line Items]
Maturity	3 years
Maturing in Three to Five Years [Member] | Maximum [Member]
Note 9 - Borrowed Funds (Details) - Securities Sold Under Agreements to Repurchase [Line Items]
Maturity	5 years
Maturing in Three to Five Years [Member]
Note 9 - Borrowed Funds (Details) - Securities Sold Under Agreements to Repurchase [Line Items]
No. of Agreements	2
Amount (in Dollars)	$ 100,000
Weighted Average Interest Rate	2.86%