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13. INCOME TAXES (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Income Tax Disclosure [Abstract] |  |
One-time mandatory transition tax (See Note 13(a)) | $ 5,402,000 | $ 0
Current taxes - PRC | 7,737,087 | 11,807,194
Deferred taxe - PRC | (4,126,947) | 3,013
Income taxes | $ 9,012,140 | $ 11,810,207

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