Note 2 - Securities (Details) (USD $)	6 Months Ended
Jun. 30, 2013
Note 2 - Securities (Details) [Line Items]
Available-for-sale Securities, Gross Realized Gain (Loss)	$ (5,800,000)
Credit Loss [Member]
Note 2 - Securities (Details) [Line Items]
Less OTTI Charges Recognized In Net Income Mortgage Backed Securities	21,000
Less OTTI Charges Recognized In Net Income Asset Backed Securities	$ 11,000

This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

Name:	us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration