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Note 2 - Pending Acquisition (Details) (USD $)
In Millions, except Share data, unless otherwise specified
0 Months Ended 0 Months Ended
Aug. 13, 2013
Pending Acquisition [Member]
Common Stock [Member]
Bear State Financial Holdings LLC [Member]
Jul. 02, 2013
Pending Acquisition [Member]
FNSC [Member]
Shares [Member]
Jul. 02, 2013
Pending Acquisition [Member]
FNSC [Member]
Jul. 02, 2013
Pending Acquisition [Member]
Bear State Financial Holdings LLC [Member]
Aug. 13, 2013
Common Stock [Member]
Bear State Financial Holdings LLC [Member]
Aug. 23, 2013
Bear State Financial Holdings LLC [Member]
Note 2 - Pending Acquisition (Details) [Line Items]            
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares     6,252,400      
Payments to Acquire Businesses, Gross (in Dollars)   $ 74        
Number Of Shares To Be Sold In Connection With Merge       2,531,645    
Sale of Stock, Price Per Share (in Dollars per share)       $ 7.90    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 177,215          
Term of Warrant         5 years  
Investment Warrants, Exercise Price (in Dollars per share)         $ 7.90  
Common Stock, Shares Subscribed but Unissued           2,297,031
Shares Remaining To Be Purchased In Private Placement           234,614