Note 3 - Revenue Recognition - Schedule of Sales Returns and Allowances Accrual Activity (Details) - USD ($)	3 Months Ended	9 Months Ended
Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024	Nov. 30, 2023
Beginning Balance	$ 363,000	$ 471,000	$ 471,000	$ 471,000
Accrued Allowances	(33,000)	0	(141,000)	0
Credits Issued	0	0	0	0
Ending Balance	$ 330,000	$ 471,000	$ 330,000	$ 471,000

Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 27
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-27

Name:	us-gaap_ContractWithCustomerRefundLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant