Note 4 - Loans and Allowance for Loan Losses (Detail) - Loans Individually Evaluated for Impairment (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
With an allowance recorded:
Recorded Investment	$ 4,853		$ 3,491
Allowance for Loan Losses Allocated	2,206	405	655
Commercial real estate:
Unpaid Principal Balance	15,508	23,804	12,146
Recorded Investment	13,937	18,610	11,572
Allowance for Loan Losses Allocated	2,206	405	655
Average Impaired Loans	11,764	19,107	11,163
Interest Income Recognized	143	1,042	647
Cash Basis Interest Recognized	125	900	608
Residential Real Estate Loans [Member]
With no related allowance recorded:
Unpaid Principal Balance	914	1,761	1,136
Recorded Investment	774	1,489	1,085
Average Impaired Loans	662	1,171	748
Interest Income Recognized	22	62	36
Cash Basis Interest Recognized	22	45	31
With an allowance recorded:
Unpaid Principal Balance	420		420
Recorded Investment	420		420
Allowance for Loan Losses Allocated	128		130
Average Impaired Loans	420		84
Interest Income Recognized	7		27
Cash Basis Interest Recognized	4		22
Commercial real estate:
Allowance for Loan Losses Allocated	128		130
Commercial Real Estate Owner Occupied [Member]
With no related allowance recorded:
Unpaid Principal Balance	5,557	5,941	2,774
Recorded Investment	5,557	5,213	2,531
Average Impaired Loans	4,529	4,510	2,418
Interest Income Recognized	23	283	207
Cash Basis Interest Recognized	11	279	309
Commercial Real Estate Nonowner Occupied [Member]
With no related allowance recorded:
Unpaid Principal Balance	3,948	5,827	4,131
Recorded Investment	3,048	5,827	4,131
Average Impaired Loans	3,657	5,840	4,339
Interest Income Recognized	25	230	174
Cash Basis Interest Recognized	22	209	57
With an allowance recorded:
Unpaid Principal Balance	2,737	2,405	2,396
Recorded Investment	2,486	2,405	2,396
Allowance for Loan Losses Allocated	2,078	405	437
Average Impaired Loans	1,520	2,418	2,414
Interest Income Recognized	26	100	128
Cash Basis Interest Recognized	26	90	118
Commercial real estate:
Allowance for Loan Losses Allocated	2,078	405	437
Construction [Member]
With no related allowance recorded:
Unpaid Principal Balance	1,713	674
Recorded Investment	1,433	674
Average Impaired Loans	811	678
Interest Income Recognized	33	27
Cash Basis Interest Recognized	33	26
With an allowance recorded:
Unpaid Principal Balance			675
Recorded Investment			675
Allowance for Loan Losses Allocated			88
Average Impaired Loans			677
Interest Income Recognized			35
Cash Basis Interest Recognized			31
Commercial real estate:
Allowance for Loan Losses Allocated			88
Home Equity Loans [Member]
With no related allowance recorded:
Unpaid Principal Balance	219
Recorded Investment	219
Average Impaired Loans	165
Interest Income Recognized	7
Cash Basis Interest Recognized	7
Commercial and Industrial [Member]
With no related allowance recorded:
Unpaid Principal Balance		7,196	614
Recorded Investment		3,002	334
Average Impaired Loans		4,490	483
Interest Income Recognized		340	40
Cash Basis Interest Recognized		$ 251	$ 40

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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-Publisher FASB

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-SubTopic 10

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