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15. BUSINESS SEGMENTS (Details 1) - USD ($) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Business Segments Details 1 |  |
Total segment operating income | $ 46,702,824 | $ 45,036,336
Corporate costs | (682,210) | (1,447,023)
Unrealized translation difference | 1,702,728 | 1,575,397
Income from operations | 47,723,342 | 45,164,710
Other income | 312,696 | 275,235
Income before taxes | $ 48,036,038 | $ 45,439,945

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