Note 14 - Equity and Stock-based Compensation (Details Textual)			3 Months Ended		9 Months Ended
	Oct. 12, 2023	Sep. 28, 2023 shares	Oct. 31, 2023 USD ($) $ / shares shares	Oct. 31, 2022 USD ($)	Oct. 31, 2023 USD ($) $ / shares shares	Oct. 31, 2022 USD ($)	Sep. 27, 2023 shares	Jan. 31, 2023 shares
Preferred Stock, Shares Outstanding, Ending Balance (in shares) | shares			1,683,000		1,683,000			1,683,000
Preferred Stock, Liquidation Preference, Value | $			$ 46,800,000		$ 46,800,000
Preferred Stock, Amount of Preferred Dividends in Arrears | $					$ 4,700,000
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares			$ 25		$ 25
Common Stock, Shares, Issued (in shares) | shares		1,405,779	1,406,000		1,406,000		13,788,738	1,599,000
Share-Based Payment Arrangement, Expense | $			$ 106,000	$ 136,000	$ 264,000	$ 524,000
Common Stock, Shares, Outstanding (in shares) | shares		1,405,779					13,788,738
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	10	10
Preferred Stock [Member] | Quarterly Dividends [Member]
Dividends Payable, Amount Per Share (in dollars per share) | $ / shares			$ 0.5625		$ 0.5625