Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Shareholders' Equity - Stock Option Awards - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 30, 2022	Apr. 30, 2022	Jul. 31, 2021	May 01, 2021	Jul. 30, 2022	Jul. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, weighted average grant date fair value	$ 2.45	$ 4.20
Intrinsic value of options exercised	$ 0	$ 0	$ 0	$ 0
Unrecognized compensation cost related to non-vested awards	420				$ 420
Period for recognition of unrecognized compensation cost					2 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option awards compensation expense	$ 59		$ 33		$ 116	$ 52