Note 7 - Other Borrowed Funds (Detail) - Other Borrowed Funds (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Other borrowed funds	$ 14,285	$ 20,296
Federal Home Loan Bank Advances [Member]
Other borrowed funds	10,759	16,548
Promissory Notes [Member]
Other borrowed funds	3,526	3,748
Federal Reserve Bank Notes [Member]
Other borrowed funds	$ 14,285	$ 20,296

The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

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 210.9-03.13,16)

-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 13, 16

-Article 9

Name:	us-gaap_OtherBorrowings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant