Note 3 - Loans Receivable (Details) - Loans Receivable (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2011
Construction loans:
Loans by Class	$ 287,324	$ 274,937
Less allowance for loan losses	(3,684)	(3,790)	(3,979)
Loans, net	283,640	271,147
Construction Residential [Member]
Construction loans:
Loans by Class	6,804	5,036
Less allowance for loan losses	(113)	(117)	(90)
Land Acquistion, Development and Commercial [Member]
Construction loans:
Loans by Class	20,120	20,198
Less allowance for loan losses	(739)	(811)	(953)
Real Estate Residential [Member]
Construction loans:
Loans by Class	68,733	69,691
Less allowance for loan losses	(887)	(725)	(538)
Real Estate Commercial [Member]
Construction loans:
Loans by Class	124,585	109,302
Less allowance for loan losses	(971)	(1,054)	(1,314)
Commercial, Industrial and Agricultural [Member]
Construction loans:
Loans by Class	38,656	42,382
Less allowance for loan losses	(307)	(459)	(628)
Equity Lines [Member]
Construction loans:
Loans by Class	19,409	20,504
Less allowance for loan losses	(349)	(386)	(313)
Consumer [Member]
Construction loans:
Loans by Class	9,017	7,824
Less allowance for loan losses	$ (58)	$ (145)	$ (143)

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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.

+ References

Reference 1: 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 2: 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 3: 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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

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- Definition

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

+ References

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- 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 and loans held for sale.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

Reference 2: 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)

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

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