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
May 31, 2020	Sep. 30, 2021
Debt Instrument [Line Items]
PPP loans from bank	$ 3,234
Debt instrument forgiveness amount		$ 2,972
Debt forgiveness income related to loan		3,010
Debt forgiveness accrued interest		$ 38

Cash received from principal payments made on loans related to operating activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3536-108585

Name:	us-gaap_ProceedsFromLoans
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration