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Income Taxes - Additional Information (Detail) - USD ($)
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Income Tax Disclosure [Abstract]    
Percentage of NOL under tax cuts and jobs act 80.00%  
Deferred income tax valuation allowance $ 6,700,000 $ 8,389,000
Net long-term deferred income tax asset or liability 0 $ 0
Net operating loss carry-forward $ 15,631,000  
Net operating loss carryforward expiration year 2023 through fiscal 2038