Stockholders' Equity - Schedule of Outstanding Warrants (Detail) - $ / shares		12 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Apr. 14, 2022
Warrants exercise price				$ 0.001
Warrant [Member]
Number		36,024,000
Warrant [Member] | Issued For Services One [Member]
Number		6,000
Warrants exercise price		$ 17.80
Expiry date		Jan. 25, 2023
Warrant [Member] | Issued For Services Two [Member]
Number		34,000
Warrants exercise price		$ 11.70
Expiry date		Feb. 27, 2023
Warrant [Member] | Issued For Services Four [Member]
Number		14,000
Warrants exercise price		$ 9.00
Expiry date		Oct. 11, 2023
Warrant [Member] | Issued For Services Five [Member]
Number		280,000
Warrants exercise price		$ 0.75
Expiry date		Nov. 18, 2023
Warrant [Member] | Issued For Services Six [Member]
Number		125,000
Warrants exercise price		$ 0.64
Expiry date		Jan. 20, 2024
Warrant [Member] | Issued For Services Seven [Member]
Number		330,000
Warrants exercise price		$ 1.49
Expiry date		Sep. 22, 2023
Warrant [Member] | Issued For Services Eight [Member]
Number		50,000
Warrants exercise price		$ 1.82
Expiry date		Nov. 13, 2023
Warrant [Member] | Issued For Services Nine [Member]
Number		100,000
Warrants exercise price		$ 1.47
Expiry date		Jan. 07, 2024
Warrant [Member] | Issued For Services Ten [Member]
Number		70,000
Warrants exercise price		$ 2.75
Expiry date		Feb. 17, 2024
Warrant [Member] | Issued For Services Eleven [Member]
Number		50,000
Warrants exercise price		$ 2.38
Expiry date		Feb. 25, 2024
Warrant [Member] | Investor One [Member]
Number		16,226,000
Warrants exercise price		$ 0.41
Expiry date		Apr. 14, 2027
Warrant [Member] | Investor Two [Member]
Number		12,000,000
Warrants exercise price		$ 1.25
Expiry date		Mar. 28, 2025
Warrant [Member] | Investor Three [Member]
Number			3,264,000
Warrants exercise price			$ 1.00
Expiry date			Aug. 16, 2024
Warrant [Member] | Investor Four [Member]
Number		760,000
Warrants exercise price		$ 3.10
Expiry date		Jun. 05, 2024
Warrant [Member] | Investor Five [Member]
Number		280,000
Warrants exercise price		$ 12.50
Expiry date		Sep. 22, 2022
Warrant [Member] | NBTS [Member]
Number	[1]	125,000
Warrants exercise price	[1]	$ 1.09
Expiry date	[1]	Jun. 19, 2025
Warrant [Member] | Agent [Member]
Number		1,623,000
Warrants exercise price		$ 0.66
Expiry date		Oct. 14, 2026
Warrant [Member] | Agent One [Member]
Number		600,000
Warrants exercise price		$ 1.56
Expiry date		Mar. 28, 2025
Warrant [Member] | Agent Two [Member]
Number		47,000
Warrants exercise price		$ 3.88
Expiry date		Jun. 03, 2024
Warrant [Member] | Agent Three [Member]
Number		40,000
Warrants exercise price		$ 12.50
Expiry date		Sep. 20, 2022

[1] NBTS Warrants were issued with respect to loan proceeds received during the year ended June 30, 2021 (note 7).