Note 17 - Related Party Transactions (Detail) - Loans to Principal Officers, Directors, and Their Affiliates (Officers Directors And Affiliates [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Officers Directors And Affiliates [Member]
Beginning balance	$ 40,477	$ 48,510
New loans	39,074	46,283
Repayments	(43,885)	(47,972)
Deletion of Directors	(896)	(6,344)
Ending balance	$ 34,770	$ 40,477

Note 17 - Related Party Transactions (Detail) - Loans to Principal Officers, Directors, and Their Affiliates (Officers Directors And Affiliates [Member], USD $)
In Thousands, unless otherwise specified

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Officers Directors And Affiliates [Member]

Beginning balance

$ 40,477

$ 48,510

New loans

39,074

46,283

Repayments

(43,885)

(47,972)

Deletion of Directors

(896)

(6,344)

Ending balance

$ 34,770

$ 40,477

- Definition

Reflects the amount of new advances made to related parties in the form of loan and lease receivables.

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- Definition

Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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- Definition

The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates.

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