Shareholders' Equity - Stock Option Awards - Activity (Details)	6 Months Ended
Jul. 31, 2021 $ / shares shares
The 2020 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted \| shares	68,000
Balance outstanding at end of period \| shares	68,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Granted, weighted average exercise price \| $ / shares	$ 9.08
Balance outstanding at end of period, weighted average exercise price \| $ / shares	$ 9.08
A 2011 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance outstanding at beginning of period \| shares	34,000
Granted \| shares	0
Exercised \| shares	0
Forfeited or canceled \| shares	0
Balance outstanding at end of period \| shares	34,000
Options exercisable \| shares	30,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Balance outstanding at beginning of period, weighted average exercise price \| $ / shares	$ 12.87
Granted, weighted average exercise price \| $ / shares	0
Exercised, weighted average exercise price \| $ / shares	0
Forfeited or canceled, weighted average exercise price \| $ / shares	0
Balance outstanding at end of period, weighted average exercise price \| $ / shares	12.87
Options exercisable, weighted average exercise price \| $ / shares	$ 13.67
A2004 Omnibus Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance outstanding at beginning of period \| shares	3,000
Granted \| shares	0
Exercised \| shares	0
Forfeited or canceled \| shares	0
Balance outstanding at end of period \| shares	3,000
Options exercisable \| shares	3,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Balance outstanding at beginning of period, weighted average exercise price \| $ / shares	$ 53.49
Granted, weighted average exercise price \| $ / shares	0
Exercised, weighted average exercise price \| $ / shares	0
Forfeited or canceled, weighted average exercise price \| $ / shares	0
Balance outstanding at end of period, weighted average exercise price \| $ / shares	53.49
Options exercisable, weighted average exercise price \| $ / shares	$ 53.49

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average price of options that were either forfeited or expired.

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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.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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