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Lines of Credit - Additional information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2021
Sep. 20, 2020
Jun. 30, 2020
Line of Credit Facility [Line Items]      
Line of credit outstanding $ 3,000   $ 3,000
CIBC Bank USA [Member]      
Line of Credit Facility [Line Items]      
Line of credit maximum borrowing capacity   $ 7,500  
Line of credit outstanding $ 3,000    
Debt instrument stated interest rate 2.50%    
Line of credit maturity Sep. 30, 2020