Summary of Significant Accounting Policies (Details 1)	3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Assets and liabilities [Member]
Description of foreign currency translation	period end exchange rate	period end exchange rate	period end exchange rate	period end exchange rate
Assets and liabilities [Member] | RMB [Member]
Foreign currency translation	6.9680	6.8776	6.9680	6.8776	6.7111
Assets and liabilities [Member] | HKD
Foreign currency translation	7.7876	7.8317	7.7876	7.8317	7.8493
Revenue and expenses [Member]
Description of foreign currency translation	period average		period average
Revenue and expenses [Member] | RMB [Member]
Foreign currency translation	7.0435	6.9162	6.9612	6.7008
Revenue and expenses [Member] | HKD
Foreign currency translation	7.8251	7.8293	7.8315	7.8408