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15. BUSINESS SEGMENTS (Details 1) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Business Segments Details 1        
Total segment operating income $ 13,955,617 $ 13,052,144 $ 39,633,684 $ 35,690,933
Corporate costs (180,447) (210,707) (409,808) (1,153,164)
Unrealized translation difference 181,030 1,061,721 729,764 1,037,429
Income from operations 13,956,200 13,903,158 39,953,640 35,575,198
Other income 78,042 66,636 222,678 199,913
Income before taxes $ 14,034,242 $ 13,969,794 $ 40,176,318 $ 35,775,111