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Gross number of share options (or share units) granted during the period.

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Per share or per unit amount of equity securities issued.

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Stockholders' Equity - Additional Information (Detail) - USD ($)	1 Months Ended			6 Months Ended		9 Months Ended	12 Months Ended
	May 31, 2022	Mar. 31, 2022	Sep. 30, 2020	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2021	Dec. 31, 2021	Apr. 30, 2022	Mar. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Commission Rate Equal To Gross Proceeds1								3.00%	3.00%
Number of common stock shares reserved for issuance				4,971,922
Stock options granted				1,528,444
Inducement Pool Non Qualified Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common stock shares reserved for issuance		300,000
Aspire Capital [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares issued and sold				0	3,000,000
Shares Issued, Price Per Share					$ 5.09
Proceeds from Issuance of Common Stock					$ 15,200,000
Commitment to purchase shares			$ 20,000,000.0
Long-term purchase commitment, period			30 months
Long-term purchase commitment, description			upon the terms and subject to the conditions and limitations set forth therein, Aspire Capital is committed to purchase up to an aggregate of $20.0 million of shares of our common stock at our request from time to time during the 30 month term of the Purchase Agreement.
Public Offerings [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Proceeds from Issuance of Common Stock						$ 80,600,000
ATM Offering Program [Member] \| Jones Trading Institutional Services LLC [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares Issued, Price Per Share				$ 6.07			$ 4.75
Proceeds from Issuance of Common Stock				$ 1,500,000			$ 4,400,000
ATM Offering Program [Member] \| Jones Trading Institutional Services LLC [Member] \| Sale Agreement [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Agreed upon value of sale of common stock per transaction									$ 25,000,000.0
ATM Offering Program [Member] \| Jefferies LLC [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares Issued, Price Per Share				$ 2.80
Proceeds from Issuance of Common Stock				$ 200,000
ATM Offering Program [Member] \| Jefferies LLC [Member] \| Sale Agreement [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Agreed upon value of sale of common stock per transaction								$ 65,000,000.0
Common Stock [Member] \| Inducement Pool Non Qualified Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options vesting period		4 years
Stock options granted	113,400	58,400
Exercise price, granted	$ 3.48	$ 5.24
Common Stock [Member] \| Inducement Pool Non Qualified Option [Member] \| One Year Anniversary [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options vesting period		1 year
Option vesting percentage		25.00%
Common Stock [Member] \| Inducement Pool Non Qualified Option [Member] \| Share-based Payment Arrangement, Tranche Two [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options vesting period		3 years
Option vesting percentage		75.00%
Common Stock [Member] \| Maximum [Member] \| Inducement Pool Non Qualified Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options vesting period		10 years
Common Stock [Member] \| Public Offerings [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares issued and sold						10,781,250
Shares Issued, Price Per Share						$ 8.00
Common Stock [Member] \| ATM Offering Program [Member] \| Jones Trading Institutional Services LLC [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares issued and sold				260,455			986,267
Common Stock [Member] \| ATM Offering Program [Member] \| Jefferies LLC [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares issued and sold				69,251