Note 9 - Earnings Per Share (Details Textual) - USD ($)		3 Months Ended				9 Months Ended
	Sep. 04, 2024	Oct. 31, 2025	Jul. 31, 2025	Oct. 31, 2024	Jul. 31, 2024	Oct. 31, 2025	Oct. 31, 2024	Aug. 28, 2025	Jan. 31, 2025
Weighted Average Number of Shares Outstanding, Basic (in shares)		8,046,000	8,000,000	5,473,000	5,500,000	7,980,000	2,772,000
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.01				$ 0.01			$ 0.01
Proceeds from Issuance of Common Stock						$ 10,754,000	$ 0
Sales Agreement [Member]
Equity Offering, Maximum Offering Amount								$ 25
Common Stock, Par or Stated Value Per Share (in dollars per share)								$ 0.01
Equity Offering, Compensation of Gross Proceeds, Percent		2.00%				2.00%
Stock Issued During Period, Shares, New Issues (in shares)		1,000,000				1,000,000
Proceeds from Issuance of Common Stock		$ 10,800,000
Conversion of Series A Preferred Stock Into Common Stock [Member]
Conversion of Stock, Shares Issued (in shares)	6,600,000