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Paycheck Protection Loan - Additional Information (Detail) - Paycheck Protection Program CARES Act [Member]
$ in Thousands
12 Months Ended
Apr. 30, 2020
USD ($)
Dec. 31, 2021
Debt Instrument [Line Items]    
Proceeds from loan $ 384  
Number of times for loans to qualifying businesses average monthly payroll costs 2.5  
Term of unforgiven portion of loan 2 years  
Interest rate 1.00%  
Term of deferral payments 6 months  
Debt instrument, description   The PPP, established as part of the Coronavirus Aid, Relief and Economic Security Act (“CARES Act”), provides for loans to qualifying businesses for amounts up to 2.5 times of the average monthly payroll expenses of the qualifying business. The loan and accrued interest are forgivable after eight weeks if the borrower uses the loan proceeds for eligible purposes, including payroll, benefits, rent and utilities. The amount of loan forgiveness may be reduced if the borrower terminates employees or reduces salaries during the eight-week period. The unforgiven portion of the PPP loan is payable over two years at an interest rate of 1%, with a deferral of payments for the first six months. The Company used the proceeds for purposes consistent with the PPP
Minimum [Member]    
Debt Instrument [Line Items]    
Term of loan and accrued interest forgivable 56 days