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Note 1 - Summary of Significant Accounting Policies (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2014
USD ($)
shares
Dec. 31, 2013
shares
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]        
Number of Reportable Segments   2    
Percentage of Loan Portfolio   100.00% 100.00%  
Due from Banks   $ 34,933,000    
Repossessed Assets   2,358,000 $ 1,525,000  
Goodwill, Impairment Loss   0    
Servicing Asset   $ 429,000 $ 484,000  
Weighted Average Number of Shares Outstanding, Basic | shares   4,117,675 4,099,194 4,064,083
Weighted Average Number of Shares Outstanding, Diluted | shares   0 0 0
Restricted Cash and Cash Equivalents   $ 36,535,000 $ 22,122,000  
Unsecured [Member]        
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]        
Percentage of Loan Portfolio   6.06% 5.66%  
Consumer Portfolio Segment [Member]        
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]        
Period of Actual Loss History Experienced   3 years    
Percentage of Loan Portfolio   18.89% 18.42%  
Commercial Portfolio Segment [Member]        
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]        
Period of Actual Loss History Experienced 5 years 5 years   3 years
Percentage of Loan Portfolio   13.99% 14.12%  
Minimum [Member] | Equipment, Furniture and Fixtures [Member]        
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]        
Property, Plant and Equipment, Useful Life   3 years    
Minimum [Member] | Building and Building Improvements [Member]        
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]        
Property, Plant and Equipment, Useful Life   7 years    
Maximum [Member] | Equipment, Furniture and Fixtures [Member]        
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]        
Property, Plant and Equipment, Useful Life   8 years    
Maximum [Member] | Building and Building Improvements [Member]        
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]        
Property, Plant and Equipment, Useful Life   39 years