Long-Term Debt (CARES Act Paycheck Protection Plan Loans) - Additional Information (Detail) - CARES Act Paycheck Protection Plan Loans [Member] - USD ($) $ in Thousands	2 Months Ended		3 Months Ended
	Aug. 31, 2021	May 31, 2020	Sep. 30, 2021	Jun. 30, 2021
Debt Instrument [Line Items]
PPP loans from bank		$ 3,234
Debt instrument forgiveness amount				$ 261
Debt forgiveness accrued interest				3
Debt forgiveness income related to loan				$ 264
Forecast [Member]
Debt Instrument [Line Items]
Debt forgiveness income related to loan			$ 3,010
Subsequent Event [Member]
Debt Instrument [Line Items]
Debt instrument forgiveness amount	$ 2,972
Debt forgiveness accrued interest	$ 38