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15. BUSINESS SEGMENTS (Details 1) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Business Segments Details 1        
Total segment operating income $ 15,267,555 $ 7,673,800 $ 22,638,789 $ 13,105,112
Corporate costs (706,166) (142,228) (966,749) 28,104
Income from operations 14,561,389 7,531,572 21,672,040 13,133,216
Other income, net of expense 57,169 66,743 133,277 120,506
Income before taxes $ 14,618,558 $ 7,598,315 $ 21,805,317 $ 13,253,722