Note 6 - Goodwill And Other Intagible Assets (Details) - Goodwill, Core Deposit Premiums and Purchased Credit Card Relationships (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Note 6 - Goodwill And Other Intagible Assets (Details) - Goodwill, Core Deposit Premiums and Purchased Credit Card Relationships [Line Items]
Goodwill	$ 60,605	$ 60,605
Purchased credit card relationships:
Other intangible assets, net	5,420	3,760
Total goodwill and other intangible assets	66,025	64,365
Core Deposit Premium [Member]
Note 6 - Goodwill And Other Intagible Assets (Details) - Goodwill, Core Deposit Premiums and Purchased Credit Card Relationships [Line Items]
Gross carrying amount	5,401	5,597
Accumulated amortization	(2,049)	(1,837)
Core deposit premiums, net	3,352	3,760
Purchased Credit Card Relationships [Member]
Note 6 - Goodwill And Other Intagible Assets (Details) - Goodwill, Core Deposit Premiums and Purchased Credit Card Relationships [Line Items]
Gross carrying amount	2,068
Purchased credit card relationships:
Purchased credit card relationships, net	$ 2,068