Note 3 - Loans (Detail) - Classified By Major Type: (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Allowance for loan losses			$ 29,969
Loans, net	1,071,313	1,016,295
Commercial And Industrial [Member]
Amount	377,054	345,265
Percent	34.30%	32.98%
Allowance for loan losses			7,326
Real Estate Residential [Member]
Amount	40,391	42,682
Percent	3.67%	4.08%
Real Estate Commercial [Member]
Amount	667,162	644,727
Percent	60.68%	61.58%
Real Estate Mortgage Total [Member]
Amount	707,553	687,409
Percent	64.35%	65.66%
Real Estate Construction Residential [Member]
Amount	4,087	6,984
Percent	0.37%	0.67%
Real Estate Construction Commercial [Member]
Amount	3,824	3,324
Percent	0.35%	0.32%
Real Estate Construction Total [Member]
Amount	7,911	10,308
Percent	0.72%	0.99%
Consumer Other Financing Receivable [Member]
Amount	6,955	3,936
Percent	0.63%	0.37%
Gross Loans [Member]
Amount	1,099,473	1,046,918
Percent	100.00%	100.00%
Unearned Income [Member]
Amount	(2,618)	(2,302)
Total Loans [Member]
Amount	1,096,855	1,044,616
Allowance For Loan Losses [Member]
Allowance for loan losses	$ (25,542)	$ (28,321)

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 8, 9

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(d))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Section 563c.102

-Paragraph 8

-Subparagraph a(ii)

-Chapter V

-Subsection I

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph d

-Article 9

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 114

-Paragraph 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

+ Details

- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References+ Details