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Note 1 - Significant Accounting Policies (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2014
Dec. 31, 2013
Sep. 30, 2014
Mortgage Loans [Member]
Sep. 30, 2014
Employee Stock Option [Member]
Sep. 30, 2013
Employee Stock Option [Member]
Sep. 30, 2014
Employee Stock Option [Member]
Sep. 30, 2013
Employee Stock Option [Member]
Sep. 30, 2013
Restricted Stock [Member]
Sep. 30, 2013
Restricted Stock [Member]
Sep. 30, 2014
Core Deposits [Member]
Note 1 - Significant Accounting Policies (Details) [Line Items]                    
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements       141,000 54,000 141,000 54,000      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount       175,000 94,000 175,000 94,000      
Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights               64,000 64,000  
Interest Income on Commercial and Mortgage Loans, Discontinued Period 90 days                  
Maximum Delinquency Period for Consumer and Credit Card Loans to be Charged-off 120 days                  
Disposal Group, Including Discontinued Operation, Mortgage Loans (in Dollars) $ 2.1 $ 1.1                
Servicing Asset (in Dollars)     $ 592              
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life                   10 years