XML 40 R29.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 3 - Loans and Allowance for Loan Losses (Details Textual)
3 Months Ended 12 Months Ended
Mar. 31, 2018
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
Loans Charge-off Period 90 days    
Performance Period 180 days    
Financing Receivable, Allowance for Credit Losses, Write-downs $ 257,000 $ 288,000  
Collateral Dependent Loans, Value of Significant Properties 200,000    
Mortgage Loans in Process of Foreclosure, Amount $ 1,000,000   $ 588,000
Financing Receivable, Allowance for Credit Losses, Loss Factor Increase 0.15%    
Financing Receivable, Allowance for Credit Losses, Loss Factor 20.00%    
Impaired Financing Receivable, Interest Income, Cash Basis Method, Total $ 0 $ 0  
Loans and Leases Receivable, Impaired, Commitment to Lend $ 0   0
Financing Receivable, Modifications, Number of Contracts 1 0  
Troubled Debt Restructuring, Principal Charge-offs $ 0    
Financing Receivable, Modifications, Subsequent Default, Number of Contracts 0 0  
Financial Receivable, Trouble Debt Restructure, Defaulted, Provisions Loan Losses or Net Charge-offs     0
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance, Total $ 617,000   625,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses 0   2,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses, Decreases 2,000 $ 0  
Nonperforming Financial Instruments [Member]      
Loans and Leases Receivable, Allowance, Ending Balance 0  
Classified Loans [Member]      
Allowance for Loan and Lease Losses, Period Increase (Decrease), Total 515,000   506,000
Qualitative Factor Past Due Loans [Member]      
Financing Receivable, Allowance for Credit Losses, Effect of Change in Method $ 2,300,000   $ 2,100,000
Overall Qualitative Factor [Member]      
Financing Receivable, Allowance for Credit Losses Risk Factor 1.18   1.18
Allowance for Loan and Lease Losses, Period Increase (Decrease), Total $ 534,000   $ 536,000
Bank Overdrafts [Member]      
Loans Charge-off Period 45 days    
Other than Consumer Portfolio Segment [Member]      
Number of Loans 5    
Financing Receivable, Allowance for Credit Losses, Write-downs $ 97,000