Note 14 - Stockholders' Equity (Details Textual)	12 Months Ended
	Jan. 31, 2022 $ / shares shares	Jan. 31, 2021 shares	Aug. 03, 2020 shares	Aug. 02, 2020 shares
Preferred Stock, Shares Authorized (in shares)	2,000,000	2,000,000	2,000,000	1,000,000
Preferred Stock, Shares Outstanding, Ending Balance (in shares)	1,683,000	1,038,000
Common Stock, Shares Authorized (in shares)	40,000,000	40,000,000	40,000,000	20,000,000
Common Stock, Shares, Issued, Total (in shares)	15,705,000	15,681,000
Treasury Stock, Shares, Ending Balance (in shares)	1,931,000	1,929,000
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares)	1,100	0
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation, Average Fair Value (in dollars per share) | $ / shares	$ 1.25
Series A Preferred Stock [Member]
Preferred Stock, Shares Outstanding, Ending Balance (in shares)	1,682,985	1,038,232
Preferred Stock, Dividend Rate, Percentage	9.00%
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares	$ 25.00
Preferred Stock, Dividend Rate, Per-Dollar-Amount (in dollars per share) | $ / shares	2.25
Preferred Stock, Redemption Price Per Share (in dollars per share) | $ / shares	$ 25.00
Preferred Stock Redemption Period (Day)	120 days
Preferred Stock, Voting Rights, Number of Quarterly Dividends Periods, Threshold	6
Minimum Period Of Time For Listing (Year)	180 years