Note 11 - Treasury Stock and Repurchase Program (Details Textual) - USD ($)	Jan. 31, 2025	Dec. 31, 2024	Nov. 30, 2024	Oct. 31, 2024	Oct. 21, 2022
Share Repurchase Program, Authorized, Amount					$ 3,000,000
Share Repurchase Program, Remaining Authorized, Amount	$ 937,000	$ 1,013,000	$ 1,014,000	$ 1,033,000

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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