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Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans $ 756,814 $ 739,058
Construction Land Development And Other Land Loans [Member] | Grade One [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0 0
Construction Land Development And Other Land Loans [Member] | Grade Two [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0 0
Construction Land Development And Other Land Loans [Member] | Grade Three [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 9,193 10,384
Construction Land Development And Other Land Loans [Member] | Grade Four [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 32,826 22,384
Construction Land Development And Other Land Loans [Member] | Grade W [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 8,616 6,735
Construction Land Development And Other Land Loans [Member] | Grade Five [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 2,296 3,354
Construction Land Development And Other Land Loans [Member] | Grade Six [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 4,859 4,000
Construction Land Development And Other Land Loans [Member] | Grade Seven [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 803 2,780
Construction Land Development And Other Land Loans [Member] | Not Risk Rated [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 16,807 [1] 16,486 [1]
Construction Land Development And Other Land Loans [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 75,400 66,123
Multi Family [Member] | Grade One [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0  
Multi Family [Member] | Grade Two [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0  
Multi Family [Member] | Grade Three [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 168  
Multi Family [Member] | Grade Four [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 1,131  
Multi Family [Member] | Grade W [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 9,206  
Multi Family [Member] | Grade Five [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0  
Multi Family [Member] | Grade Six [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 181  
Multi Family [Member] | Grade Seven [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0  
Multi Family [Member] | Not Risk Rated [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 9 [1]  
Multi Family [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 10,695  
Non Farm Nonresidential [Member] | Grade One [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0 2,643
Non Farm Nonresidential [Member] | Grade Two [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0 0
Non Farm Nonresidential [Member] | Grade Three [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 69,394 83,554
Non Farm Nonresidential [Member] | Grade Four [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 171,193 151,956
Non Farm Nonresidential [Member] | Grade W [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 79,937 73,306
Non Farm Nonresidential [Member] | Grade Five [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 17,447 28,910
Non Farm Nonresidential [Member] | Grade Six [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 29,084 38,328
Non Farm Nonresidential [Member] | Grade Seven [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 1,590 1,801
Non Farm Nonresidential [Member] | Not Risk Rated [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 318 [1] 156 [1]
Non Farm Nonresidential [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 368,963 380,654
Commercial Real Estate Loans [Member] | Grade One [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0  
Commercial Real Estate Loans [Member] | Grade Two [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 0  
Commercial Real Estate Loans [Member] | Grade Three [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 78,755  
Commercial Real Estate Loans [Member] | Grade Four [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 205,150  
Commercial Real Estate Loans [Member] | Grade W [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 97,759  
Commercial Real Estate Loans [Member] | Grade Five [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 19,743  
Commercial Real Estate Loans [Member] | Grade Six [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 34,124  
Commercial Real Estate Loans [Member] | Grade Seven [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 2,393  
Commercial Real Estate Loans [Member] | Not Risk Rated [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 17,134 [1]  
Commercial Real Estate Loans [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans 455,058 459,212
Grade One [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans   2,643
Grade Two [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans   0
Grade Three [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans   94,342
Grade Four [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans   175,731
Grade W [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans   82,472
Grade Five [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans   39,447
Grade Six [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans   42,574
Grade Seven [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans   5,357
Not Risk Rated [Member]
    
Note 5 - Loans (Details) - The Company's Internal Credit Quality Indicators of Gross loans and Commercial Loans Held for Sale September [Line Items]    
Gross Loans   $ 16,646 [1]
[1] Consumer real estate loans, included within construction, land development and other land loans, are not risk rated in accordance with the Company's policy.