Note 23 - Fair Value (Detail) - Assets Measured at Fair Value on a Recurring Basis (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Securities Available For Sale	$ 353,678	$ 342,184
Trading equity securities	6	2
US Government Agencies Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities Available For Sale	0	0
US Government Agencies Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities Available For Sale	106,885	133,834
US Government Agencies Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities Available For Sale	0	0
US Government Agencies Debt Securities [Member]
Securities Available For Sale	106,885	133,834
Mortgage-backed Securities, Issued by Private Enterprises [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities Available For Sale	0	0
Mortgage-backed Securities, Issued by Private Enterprises [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities Available For Sale	66,277	71,052
Mortgage-backed Securities, Issued by Private Enterprises [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities Available For Sale	0	0
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Securities Available For Sale	66,277	71,052
US Government Agency CMO [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities Available For Sale	0	0
US Government Agency CMO [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities Available For Sale	61,030	57,845
US Government Agency CMO [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities Available For Sale	0	0
US Government Agency CMO [Member]
Securities Available For Sale	61,030	57,845
Municipal Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities Available For Sale	0	0
Municipal Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities Available For Sale	97,525	62,447
Municipal Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities Available For Sale	20,289	15,342
Municipal Securities [Member]
Securities Available For Sale	117,814	77,789
Equity Securities, Other [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities Available For Sale	91	92
Equity Securities, Other [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities Available For Sale	0	0
Equity Securities, Other [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities Available For Sale	1,581	1,572
Equity Securities, Other [Member]
Securities Available For Sale	1,672	1,664
Fair Value, Inputs, Level 1 [Member]
Securities Available For Sale	91	92
Trading equity securities	6	2
Fair Value, Inputs, Level 2 [Member]
Securities Available For Sale	331,717	325,179
Trading equity securities	0	0
Fair Value, Inputs, Level 3 [Member]
Securities Available For Sale	21,870	16,914
Trading equity securities	$ 0	$ 0

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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