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Note 8 - Borrowings (Details) (USD $)
 4 Months Ended 12 Months Ended 37 Months Ended
Dec. 31, 2013
Dec. 31, 2013
Sep. 01, 2013
Sep. 02, 2013
Dec. 31, 2012
Note 8 - Borrowings (Details) [Line Items]          
Line of Credit Facility, Amount Outstanding $ 79,786,000 $ 79,786,000     $ 74,094,000
Line of Credit Facility, Maximum Borrowing Capacity 50,000,000 50,000,000      
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances 30,000,000 30,000,000      
Debt Instrument, Basis Spread on Variable Rate   0.25%      
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum   3.50%      
Subordinated Debt       9,300,000  
Subordinated Borrowing, Interest Rate 8.50%   10.00%    
Phase Out of New Notes Capital Treatment 20.00% 20.00%      
Federal Funds [Member]
          
Note 8 - Borrowings (Details) [Line Items]          
Debt Instrument, Unused Borrowing Capacity, Amount 127,500,000 127,500,000      
Subordinated Notes [Member]
          
Note 8 - Borrowings (Details) [Line Items]          
Debt Instrument, Basis Spread on Variable Rate   7.03%      
Federal Funds [Member]
          
Note 8 - Borrowings (Details) [Line Items]          
Line of Credit Facility, Amount Outstanding 0 0      
CDARS [Member]
          
Note 8 - Borrowings (Details) [Line Items]          
Line of Credit Facility, Amount Outstanding 7,700,000 7,700,000      
Line of Credit Facility, Maximum Borrowing Capacity 555,600,000 555,600,000      
IND [Member]
          
Note 8 - Borrowings (Details) [Line Items]          
Line of Credit Facility, Amount Outstanding 159,300,000 159,300,000      
Line of Credit Facility, Maximum Borrowing Capacity 300,000,000 300,000,000      
Federal Reserve Bank of Richmond [Member]
          
Note 8 - Borrowings (Details) [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity 375,000,000 375,000,000      
Maximum [Member]
          
Note 8 - Borrowings (Details) [Line Items]          
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances $ 427,700,000 $ 427,700,000