Stockholders' Equity - Schedule of Warrants (Detail) - $ / shares	12 Months Ended
Jun. 30, 2024	Jun. 30, 2023
Weighted-average exercise price of stock options and rights	$ 30.7
Warrant [Member]
Beginning Balance	713,000	720,000
Beginning balance	$ 43.55	$ 49.36
Ending balance	677,000	713,000
Ending balance	$ 39.99	$ 43.55
Warrant [Member] \| 2018 Investor and Agent Warrants [Member]
Expiry of warrants		(7,000)
Expired		$ 625.68
Warrant [Member] \| 2019 Investor and Agent Warrants [Member]
Expiry of warrants	(16,000)
Expired	$ 157.25
Common Stock Warrants [Member] \| Issued For Services One [Member]
Expiry of warrants	(20,000)
Expired	$ 71.53

Number of shares under non-option equity instrument agreements for which rights to exercise lapsed.

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

+ Details

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

+ References

+ Details

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- Details

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