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Note 2 - Components of Noncontrolling Interest Subject to Mandatory Redemption (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
RHB [Member]    
Member’s interest subject to mandatory redemption $ 20,000,000 $ 20,000,000
Undistributed earnings attributable to this interest 9,836,000 6,079,000
Earnings distributed (6,014,000) (3,200,000)
Total liability 23,822,000 22,879,000
Myers [Member]    
Member’s interest subject to mandatory redemption 20,000,000  
Undistributed earnings attributable to this interest 6,616,000  
Total liability 26,616,000  
Earnings distributed $ (2,800,000) $ (3,200,000)