Note 6 - Loans held for sale (Details) (USD $)	9 Months Ended	3 Months Ended	9 Months Ended
Sep. 30, 2012 Small Business Administration [Member]	Sep. 30, 2012 Commercial Real Estate Loans [Member]	Sep. 30, 2013 Commercial Real Estate Loans [Member]
Note 6 - Loans held for sale (Details) [Line Items]
Loans Receivable, Net	$ 700,000		$ 2,400,000
Loans and Leases Receivable, Gain (Loss) on Sales, Net	$ 60,000	$ 60,000	$ 184,000

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. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph a

-Article 9

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(a))

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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant