Note 2 - Significant Accounting Policies - Net Loss Per Common Share (Details) - shares shares in Thousands	12 Months Ended
Jan. 31, 2022	Jan. 31, 2021
Basic weighted average number of common shares outstanding (in shares)	8,133	8,126
Dilutive effect of stock options and restricted stock units (in shares)	285	0
Weighted average number of common shares outstanding assuming full dilution (in shares)	8,418	8,126
Canceled options during the year (in shares)	0
Share-based Payment Arrangement, Option [Member]
Canceled options during the year (in shares)	(33)	(25)
Restricted Stock and Stock Options [Member]
Restricted Stock and Stock options with an exercise price below the average stock price (in shares)	285	168
Restricted Stock and Stock Options [Member]
Restricted Stock and Stock options not included in the computation of diluted EPS of common stock because the option exercise prices exceeded the average market prices (in shares)	39	214

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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