Note 6 - Goodwill And Other Intagible Assets (Details) (USD $)	3 Months Ended		9 Months Ended			9 Months Ended	1 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 Core Deposit Premium [Member]	Sep. 30, 2013 Purchased Credit Card Relationships [Member]	Sep. 30, 2013 Core Deposits [Member]	Sep. 30, 2012 Core Deposits [Member]
Note 6 - Goodwill And Other Intagible Assets (Details) [Line Items]
Goodwill	$ 60,605,000		$ 60,605,000		$ 60,605,000
Finite-Lived Intangible Asset, Useful Life						10 years	5 years
Finite-lived Intangible Assets Acquired							2,100,000
Amortization of Intangible Assets	$ 135,000	$ 74,000	$ 408,000	$ 221,000				$ 408,000	$ 222,000