XML 70 R51.htm IDEA: XBRL DOCUMENT v3.8.0.1
PREPAID EXPENSE AND OTHER CURRENT ASSETS (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Spare parts $ 6,308,655 $ 5,732,914
Prepaid value added tax (“VAT”) 627,463 1,808,141
Prepaid insurance fee 333,425 259,650
Others 913,024 226,962
Total $ 8,182,567 $ 8,027,667