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Discontinued Operations (Details) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Revenues $ 329,119 $ 947,732
Costs of revenue (338,110) (2,698,808)
Gross loss (8,991) (1,751,076)
Service income 3,244 208,303
Service expenses (5,497) (198,745)
Selling expenses (63,089) (456,852)
General and administrative expenses (43,703) (866,260)
Provision for doubtful accounts (32,321) (618,290)
Impairment loss on intangible assets (18,447)
Financial expenses 88 88
Other income 1,261 19,553
Other expenses (275) (186)
Provision for income tax expense (844)
Loss on disposal of discontinued operations (82,579)
Net loss from discontinued operations $ (251,153) $ (3,663,465)