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Note 9 - Income Taxes (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Income Tax Disclosure [Abstract]          
Income Tax Expense (Benefit) $ 1,540,096 $ 665,945 $ 3,091,789 $ 917,545  
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest 3,825,091 $ 2,013,127 8,210,727 $ 2,741,566  
Unrecognized Tax Benefits 100,000   100,000   $ 100,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued $ 0   $ 0   $ 0