Prepayment (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Schedule Of Prepaid Expenses Current [Line Items]
Total prepayment	$ 1,422,522	$ 1,826,214
Deposits on Medical Equipment [Member]
Schedule Of Prepaid Expenses Current [Line Items]
Total prepayment	918,526	1,297,411
Heating Fees [Member]
Schedule Of Prepaid Expenses Current [Line Items]
Total prepayment	19,293	135,035
Others [Member]
Schedule Of Prepaid Expenses Current [Line Items]
Total prepayment	$ 484,703	$ 393,768