Note 18 - Other Comprehensive Income (Detail) - Cumulative other comprehensive income (loss) balances (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Balance, Post- retirement Benefit Obligation	$ (214)	$ (250)	$ (286)
Balance, Net Unrealized gains(losses) on securities	11,583	409	4,000
Balance, Cumulative Other Comprehensive Income (Loss)	11,369	159	3,714
Net change, Post- retirement Benefit Obligation	36	36	36
Net change, Net Unrealized gains(losses) on securities	3,220	11,174	(3,591)
Net change, Cumulative Other Comprehensive Income (Loss)	3,256	11,210	(3,555)
Balance, Post- retirement Benefit Obligation	(178)	(214)	(250)
Balance, Net Unrealized gains(losses) on securities	14,803	11,583	409
Balance, Cumulative Other Comprehensive Income (Loss)	$ 14,625	$ 11,369	$ 159

Accumulated appreciation or loss, net of tax, in value of the total of available-for-sale securities at the end of an accounting period.

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The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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+ Details

- Definition

Net of tax amount of the income statement impact of the reclassification adjustment for prior service costs recognized as a component of net period benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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