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Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale $ 359,863 $ 343,602
Trading equity securities 18 18
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 0
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 109,852 101,604
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 0
US Government Agencies Debt Securities [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 109,852 101,604
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 0
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 67,863 59,259
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 0
Mortgage-backed Securities, Issued by Private Enterprises [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 67,863 59,259
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 570
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 32,153 33,916
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 0
Collateralized Mortgage Obligations [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 32,153 34,486
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 131,328 128,803
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 17,103 17,861
US States and Political Subdivisions Debt Securities [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 148,431 146,664
Equity Securities, Other [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 0
Equity Securities, Other [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 0
Equity Securities, Other [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 1,564 1,589
Equity Securities, Other [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 1,564 1,589
Fair Value, Inputs, Level 1 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 0 570
Trading equity securities 18 18
Fair Value, Inputs, Level 2 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 341,196 323,582
Trading equity securities 0 0
Fair Value, Inputs, Level 3 [Member]
    
Note 4 - Fair Value (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]    
Securities available for sale 18,667 19,450
Trading equity securities $ 0 $ 0