Lease Obligations - Additional Information (Details) - USD ($)	3 Months Ended
May 31, 2021	May 31, 2020
Leases [Line Items]
Short term leases	$ 0
Other Income (Expense) [Member]
Leases [Line Items]
Rental income	$ 164,000	$ 186,000
Minimum [Member]
Leases [Line Items]
Operating and finance leases remaining lease terms	1 year
Maximum [Member]
Leases [Line Items]
Operating and finance leases remaining lease terms	10 years

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971

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