UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)	Common stock [Member] Series A warrants	Common stock [Member] Series B Warrants [Member]	Common stock [Member]	Additional paid-in capital [Member] Series A warrants	Additional paid-in capital [Member] Series B Warrants [Member]	Additional paid-in capital [Member]	Accumulated deficit [Member] Series A warrants	Accumulated deficit [Member] Series B Warrants [Member]	Accumulated deficit [Member]	Accumulated other comprehensive (loss) [Member] Series A warrants	Accumulated other comprehensive (loss) [Member] Series B Warrants [Member]	Accumulated other comprehensive (loss) [Member]	Non-controlling interest [Member] Series A warrants	Non-controlling interest [Member] Series B Warrants [Member]	Non-controlling interest [Member]	Series A warrants	Series B Warrants [Member]	Total
Beginning balance at Mar. 31, 2019			$ 2,595			$ 23,833,112			$ (15,031,538)			$ (428,771)			$ 7,344			$ 8,382,742
Beginning balance (in shares) at Mar. 31, 2019			25,945,255
Net (loss) income			$ 0			0			(578,360)			0			72,928			(505,432)
Issuance of common stock and warrants in a registered direct offering, net of issuance costs			$ 178			5,141,946			0			0			0			5,142,124
Issuance of common stock and warrants in a registered direct offering, net of issuance costs (in shares)			1,781,360
Fair value of warrants allocated to derivative liabilities			$ 0			(3,150,006)			0			0			0			(3,150,006)
Foreign currency translation adjustment			0			0			0			(57,947)			(28,276)			(86,223)
Ending balance at Jun. 30, 2019			$ 2,773			25,825,052			(15,609,898)			(486,718)			51,996			9,783,205
Ending balance (in shares) at Jun. 30, 2019			27,726,615
Beginning balance at Mar. 31, 2019			$ 2,595			23,833,112			(15,031,538)			(428,771)			7,344			8,382,742
Beginning balance (in shares) at Mar. 31, 2019			25,945,255
Net (loss) income																		635,926
Foreign currency translation adjustment																		(460,414)
Ending balance at Sep. 30, 2019			$ 2,869			26,786,683			(14,519,645)			(763,604)			5,796			11,512,099
Ending balance (in shares) at Sep. 30, 2019			28,691,356
Beginning balance at Mar. 31, 2019			$ 2,595			23,833,112			(15,031,538)			(428,771)			7,344			8,382,742
Beginning balance (in shares) at Mar. 31, 2019			25,945,255
Ending balance at Mar. 31, 2020			$ 2,901			27,013,137			(23,704,863)			(507,478)			(1,331,340)			1,472,357
Ending balance (in shares) at Mar. 31, 2020			29,008,818
Beginning balance at Jun. 30, 2019			$ 2,773			25,825,052			(15,609,898)			(486,718)			51,996			9,783,205
Beginning balance (in shares) at Jun. 30, 2019			27,726,615
Net (loss) income			$ 0			0			1,090,253			0			51,105			1,141,358
Exercise of warrants into common stock		$ 96			$ 0			$ 0			$ 0			$ 0			$ 96
Exercise of warrants into common stock (in shares)		964,741
Fair value of derivative liabilities upon exercise of warrants			0			961,631			0			0			0			961,631
Foreign currency translation adjustment			0			0			0			(276,886)			(97,305)			(374,191)
Ending balance at Sep. 30, 2019			$ 2,869			26,786,683			(14,519,645)			(763,604)			5,796			11,512,099
Ending balance (in shares) at Sep. 30, 2019			28,691,356
Beginning balance at Mar. 31, 2020			$ 2,901			27,013,137			(23,704,863)			(507,478)			(1,331,340)			1,472,357
Beginning balance (in shares) at Mar. 31, 2020			29,008,818
Net (loss) income			$ 0			0			(1,980,485)			0			(389,699)			(2,370,184)
Foreign currency translation adjustment			0			0			0			9,404			2,313			11,717
Ending balance at Jun. 30, 2020			$ 2,901			27,013,137			(25,685,348)			(498,074)			(1,718,726)			(886,110)
Ending balance (in shares) at Jun. 30, 2020			29,008,818
Beginning balance at Mar. 31, 2020			$ 2,901			27,013,137			(23,704,863)			(507,478)			(1,331,340)			1,472,357
Beginning balance (in shares) at Mar. 31, 2020			29,008,818
Net (loss) income																		(4,969,474)
Issuance of common stock and warrants in a registered direct offering, net of issuance costs (in shares)			1,113,187
Foreign currency translation adjustment																		(153,499)
Ending balance at Sep. 30, 2020			$ 4,336			33,444,742			(27,866,092)			(682,398)			(2,118,164)			2,782,424
Ending balance (in shares) at Sep. 30, 2020			43,358,818
Beginning balance at Jun. 30, 2020			$ 2,901			27,013,137			(25,685,348)			(498,074)			(1,718,726)			(886,110)
Beginning balance (in shares) at Jun. 30, 2020			29,008,818
Net (loss) income			$ 0			0			(2,180,744)			0			(418,546)			(2,599,290)
Issuance of common stock for consulting service			$ 50			444,950			0			0			0			445,000
Issuance of common stock for consulting service (in shares)			500,000
Issuance of common stock in an underwritten public offering with over-allotments, net of issuance costs			$ 1,380			6,096,917			0			0			0			6,098,297
Issuance of common stock in an underwritten public offering with over-allotments, net of issuance costs (in shares)			13,800,000
Exercise of warrants into common stock	$ 5			$ 74,995			$ 0			$ 0			$ 0			$ 75,000
Exercise of warrants into common stock (in shares)	50,000
Fair value of warrants allocated to derivative liabilities			$ 0			(241,919)			0			0			0			(241,919)
Fair value of derivative liabilities upon exercise of warrants			0			56,662			0			0			0			56,662
Foreign currency translation adjustment			0			0			0			(184,324)			19,108			(165,216)
Ending balance at Sep. 30, 2020			$ 4,336			$ 33,444,742			$ (27,866,092)			$ (682,398)			$ (2,118,164)			$ 2,782,424
Ending balance (in shares) at Sep. 30, 2020			43,358,818