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Note 1 - Summary of Significant Accounting Policies (Details Textual)
12 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Number of Stores 29  
Deferred Tax Assets, Valuation Allowance $ 0 $ 0
Held-to-maturity Securities 0  
Trading Securities 0  
Goodwill, Impairment Loss 0  
Servicing Contracts [Member]    
Other Intangible Assets, Net $ 0 $ 0
Risk Level, High [Member] | Eagle Commercial Ventures, LLC [Member]    
Number of Higher Risk Lending Transactions Outstanding 3 4
Loans Receivable, Net $ 9,300,000 $ 9,200,000
Minimum [Member]    
Loan Period 30 days  
Minimum [Member] | Furniture and Fixtures [Member]    
Property, Plant and Equipment, Useful Life 3 years  
Minimum [Member] | Computer Equipment [Member]    
Property, Plant and Equipment, Useful Life 3 years  
Minimum [Member] | Building Improvements [Member]    
Property, Plant and Equipment, Useful Life 5 years  
Maximum [Member]    
Loan Period 90 days  
Maximum [Member] | Furniture and Fixtures [Member]    
Property, Plant and Equipment, Useful Life 7 years  
Maximum [Member] | Computer Equipment [Member]    
Property, Plant and Equipment, Useful Life 5 years  
Maximum [Member] | Building Improvements [Member]    
Property, Plant and Equipment, Useful Life 20 years  
Banking Services [Member]    
Number of Stores 21  
Lending Services [Member]    
Number of Stores 5