Note 2 - Significant Accounting Policies - Net Loss Per Common Share (Details) - shares shares in Thousands	12 Months Ended
Jan. 31, 2021	Jan. 31, 2020
Basic weighted average number of common shares outstanding (in shares)	8,126	7,989
Dilutive effect of stock options and restricted stock units (in shares)		431
Weighted average number of common shares outstanding assuming full dilution (in shares)	8,126	8,420
Share-based Payment Arrangement, Option [Member]
Canceled options during the year (in shares)	(25)	(33)
Restricted Stock and Stock Options [Member]
Restricted Stock and Stock options with an exercise price below the average stock price (in shares)	168	431
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)	214	143

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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