Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Additional information (Detail)

v3.20.4
Basis of Presentation and Summary of Significant Accounting Policies - Additional information (Detail) - USD ($)
6 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Jun. 30, 2020
Summary Of Significant Accounting Policies [Line Items]      
Antidilutive securities excluded from the computation of earnings per share 384,676 252,516  
Grant Receivable on research and development expenditures [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Concentration risk percentage 43.50% 43.50%  
Fair Value, Recurring [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Financial assets at fair value $ 0   $ 0
Financial liabilities at fair value $ 0   $ 0