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Note 9 - Income Taxes (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Income Tax Disclosure [Abstract]          
Income Tax Expense (Benefit) $ 1,834,400 $ 1,143,981 $ 4,926,189 $ 2,061,526  
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest 4,993,857 $ 3,834,886 13,204,584 $ 6,576,452  
Unrecognized Tax Benefits 100,000   100,000   $ 100,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued $ 0   $ 0   $ 0