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Note 6 - Goodwill And Core Deposit Premiums (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Increase In Core Deposit Premium			$ 1,200,000
Amortization of Intangible Assets	$ 74,000	$ 222,000	$ 222,000	$ 670,000
Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life			10 years

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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