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4. PROPERTY, PLANT AND EQUIPMENT, NET (Details Narrative) - USD ($) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Property, Plant and Equipment [Abstract] |  |
Property ownership carrying value | $ 27,432,351 | $ 35,184,613
Depreciation and amortization expense | 19,930,786 | 24,552,507
Cost of net revenue | 13,443,298 | 23,220,525
Cost of administrative expenses | 1,213,010 | 1,331,982
Ordinary repair and maintenance expenses | $ 130,482 | $ 463,156

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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