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Related Party Transactions - Additional Information (Detail) - USD ($)
6 Months Ended
Mar. 31, 2022
Jul. 01, 2020
Jun. 30, 2020
Officer [Member] | LAX Group,LLC [Member]      
Related Party Transaction [Line Items]      
Salary from related party     $ 178,000
Consulting services revenue from related party     $ 4,200
Officer [Member] | LAX Group,LLC [Member] | Common Class B [Member]      
Related Party Transaction [Line Items]      
Equity ownership percentage by a related party     10.00%
Common stock vesting percentage     3.34%
Percentage of equity raised from outside investors     5.00%
Percentage of bonus received from related party     10.00%
Officer [Member] | LAX Group,LLC [Member] | Common Class B [Member] | Minimum [Member]      
Related Party Transaction [Line Items]      
Valuation of equity raised from outside investors     $ 1,500,000
Officer [Member] | Subsequent Event [Member] | LAX Group,LLC [Member]      
Related Party Transaction [Line Items]      
Salary from related party   $ 133,000  
Petty Trust [Member] | RPAC [Member]      
Related Party Transaction [Line Items]      
Annual payment for services provided to the entity     $ 700,000
Petty Trust [Member] | Scenario Forecast [Member] | RPAC [Member]      
Related Party Transaction [Line Items]      
Note payable to the Petty Trust $ 7,368,000    
Interest percentage of Notes payable 2.00%