CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY	USD ($) shares
Total shareholders' equity, beginning balances at Apr. 30, 2020	$ 12,371,487
Beginning balances at Apr. 30, 2020 | shares	47,931,983
Common stock and additional paid-in capital:
Common stock issued	$ 0
Ending balances at Oct. 31, 2020 | shares	47,931,983
Beginning balances at Apr. 30, 2020	$ (40,118,394)
Retained Earnings
Net loss	(1,065,979)
Ending balances at Oct. 31, 2020	(41,184,373)
Beginning balances at Apr. 30, 2020	4,557,898
Accumulated other comprehensive income:
Foreign currency translation adjustment	429,027
Ending balances at Oct. 31, 2020	4,986,925
Beginning balances at Apr. 30, 2020	0
Noncontrolling Interest:
Noncontrolling Interest Profit Loss	(648,299)
Accumulated other comprehensive income/(loss) Minority Interest	251,946
Ending balances at Oct. 31, 2020	(396,353)
Total shareholders' equity, ending balances at Oct. 31, 2020	11,338,182
Total shareholders' equity, beginning balances at Jul. 31, 2020	$ 11,446,836
Beginning balances at Jul. 31, 2020 | shares	47,931,983
Common stock and additional paid-in capital:
Common stock issued	$ 0
Ending balances at Oct. 31, 2020 | shares	47,931,983
Beginning balances at Jul. 31, 2020	$ (40,780,993)
Retained Earnings
Net loss	(403,380)
Ending balances at Oct. 31, 2020	(41,184,373)
Beginning balances at Jul. 31, 2020	4,640,545
Accumulated other comprehensive income:
Foreign currency translation adjustment	346,380
Ending balances at Oct. 31, 2020	4,986,925
Beginning balances at Jul. 31, 2020	(344,699)
Noncontrolling Interest:
Noncontrolling Interest Profit Loss	(255,071)
Accumulated other comprehensive income/(loss) Minority Interest	203,417
Ending balances at Oct. 31, 2020	(396,353)
Total shareholders' equity, ending balances at Oct. 31, 2020	11,338,182
Total shareholders' equity, beginning balances at Apr. 30, 2021	$ 8,128,531
Beginning balances at Apr. 30, 2021 | shares	47,931,983
Common stock and additional paid-in capital:
Common stock issued	$ 0
Ending balances at Oct. 31, 2021 | shares	47,931,983
Beginning balances at Apr. 30, 2021	$ (43,357,208)
Retained Earnings
Net loss	(1,629,055)
Ending balances at Oct. 31, 2021	(44,986,263)
Beginning balances at Apr. 30, 2021	5,193,512
Accumulated other comprehensive income:
Foreign currency translation adjustment	46,343
Ending balances at Oct. 31, 2021	5,239,855
Beginning balances at Apr. 30, 2021	(1,639,756)
Noncontrolling Interest:
Noncontrolling Interest Profit Loss	(1,013,835)
Accumulated other comprehensive income/(loss) Minority Interest	25,873
Ending balances at Oct. 31, 2021	(2,627,718)
Total shareholders' equity, ending balances at Oct. 31, 2021	5,557,857
Total shareholders' equity, beginning balances at Jul. 31, 2021	$ 7,388,447
Beginning balances at Jul. 31, 2021 | shares	47,931,983
Common stock and additional paid-in capital:
Common stock issued	$ 0
Ending balances at Oct. 31, 2021 | shares	47,931,983
Beginning balances at Jul. 31, 2021	$ (43,817,401)
Retained Earnings
Net loss	(1,168,862)
Ending balances at Oct. 31, 2021	(44,986,263)
Beginning balances at Jul. 31, 2021	5,199,853
Accumulated other comprehensive income:
Foreign currency translation adjustment	40,002
Ending balances at Oct. 31, 2021	5,239,855
Beginning balances at Jul. 31, 2021	(1,925,988)
Noncontrolling Interest:
Noncontrolling Interest Profit Loss	(723,911)
Accumulated other comprehensive income/(loss) Minority Interest	22,181
Ending balances at Oct. 31, 2021	(2,627,718)
Total shareholders' equity, ending balances at Oct. 31, 2021	$ 5,557,857