Uncompleted Contracts - Information Relative to Contracts in Progress (Detail) - USD ($) $ in Thousands	Feb. 28, 2022	Feb. 28, 2021
Contractors [Abstract]
Costs incurred to date on uncompleted contracts	$ 2,465	$ 2,183
Estimated earnings recognized to date on these contracts	1,073	980
Total costs and estimated gross profit earned	3,538	3,163
Less billings to date	(4,966)	(3,346)
Contract liabilities, net	$ 1,428	$ 183

Amount billed to customers under long-term contracts or programs but not paid. Excludes amounts due that have been withheld because of retainage provisions in a contract.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 910
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123353855&loc=SL119991595-234733

Name:	us-gaap_AccountsReceivableBilledForLongTermContractsOrPrograms
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant