XML 42 R32.htm IDEA: XBRL DOCUMENT v3.19.1
Property, Plant and Equipment (Details 1)
3 Months Ended
Mar. 31, 2019
Minimum [Member] | Permit of land use [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 40 years
Minimum [Member] | Building [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 20 years
Minimum [Member] | Plant, machinery and equipment [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years
Minimum [Member] | Motor vehicle [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years
Minimum [Member] | Office equipment [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 3 years
Maximum [Member] | Permit of land use [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 70 years
Maximum [Member] | Building [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 49 years
Maximum [Member] | Plant, machinery and equipment [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 10 years
Maximum [Member] | Motor vehicle [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 10 years
Maximum [Member] | Office equipment [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years