Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2018
Motor vehicles [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	5 years
Property and plant [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	20 years
Property and plant [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	15 years
Leasehold improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	2 years
Leasehold improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	10 months
Machinery and equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	10 years
Machinery and equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	5 years
Office equipment and furniture [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	5 years
Office equipment and furniture [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	3 years