Property and Equipment (Details) - USD ($)		Sep. 30, 2020	Mar. 31, 2020
Property, Plant and Equipment [Line Items]
Total		$ 23,440,625	$ 22,913,475
Less: Accumulated depreciation		(14,358,203)	(13,059,852)
Impairment	[1]	(2,313,944)	(2,219,883)
Property and equipment, net		6,768,478	7,633,740
Building [Member]
Property, Plant and Equipment [Line Items]
Total		6,129,801	5,880,627
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Total		9,426,295	9,209,136
Farmland development cost [Member]
Property, Plant and Equipment [Line Items]
Total		1,757,887	1,686,430
Office equipment and furniture [Member]
Property, Plant and Equipment [Line Items]
Total		5,762,776	5,632,955
Motor vehicles [Member]
Property, Plant and Equipment [Line Items]
Total		$ 363,866	$ 504,327

[1] The variance of impairment from March 31, 2020 to September 30, 2020 is solely caused by exchange rate variance.