Note 14 - Equity and Stock-based Compensation (Details Textual)			3 Months Ended
	Oct. 12, 2023	Sep. 28, 2023 shares	Apr. 30, 2024 USD ($) $ / shares shares	Apr. 30, 2023 USD ($)	Sep. 27, 2023 shares
Preferred Stock, Shares Outstanding, Ending Balance (in shares) | shares			1,683,000
Preferred Stock, Liquidation Preference, Value | $			$ 48,700,000
Preferred Stock, Amount of Preferred Dividends in Arrears | $			$ 6,600,000
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares			$ 25
Common Stock, Shares, Issued (in shares) | shares		1,405,779			13,788,738
Share-Based Payment Arrangement, Expense | $			$ 48,000	$ 50,000
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