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Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Loans and Leases Receivable, Commitments to Purchase or Sell $ 13,700,000
Overdraft Protection 9,400,000
Percent of Limit 2.53%
Committed to Sell [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Loans and Leases Receivable, Commitments to Purchase or Sell 600,500
Mortgage Loans [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Loans and Leases Receivable, Commitments to Purchase or Sell 4,400,000
Construction Loans [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Loans and Leases Receivable, Loans in Process 881,000
Interest Rate Lock Commitments [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Loans and Leases Receivable, Commitments, Fixed Rates 5,200,000
Derivative [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Loans and Leases Receivable, Commitments to Purchase or Sell 5,200,000
Line of Credit [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Line of Credit Facility, Remaining Borrowing Capacity 14,300,000
Standby Letters of Credit [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Letters of Credit Outstanding, Amount 1,900,000
Certificates of Deposit [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Deposit Liability, Current $ 134,900,000
Minimum [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Funding Period 6 months
Maximum [Member]
  
Note 16 - Off-Balance Sheet Arrangements and Commitments (Details) [Line Items]  
Funding Period 18 months