Annual report pursuant to Section 13 and 15(d)

Leases - Additional information (Detail)

v3.21.2
Leases - Additional information (Detail) - USD ($)
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jul. 01, 2019
Jun. 30, 2019
Operating lease liabilities $ 213,000 $ 405,000    
Right-of-use assets $ 202,000 395,000    
Operating lease has a remaining lease term 11 months 15 days      
Operating lease discount rate 4.67%      
General and Administrative Expense [Member]        
Operating lease expense $ 208,000 $ 208,000    
Accounting Standards Update 2016-02 [Member]        
Operating lease liabilities     $ 579,000 $ 579,000
Right-of-use assets     $ 579,000 $ 579,000