Computation of Earnings Per Common Share - Basic and Diluted Earnings Calculation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	May 01, 2021	Apr. 25, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income (loss) available to common stockholders (numerator)	$ 898	$ (32,418)
Weighted-average number of common shares (in shares)	30,675,625	31,603,498
Basic earnings per common share (in dollars per share)	$ 0.03	$ (1.03)
Potential common stock arising from stock options, and unvested restricted share units (in shares)	623,844	0
Total shares-diluted (in shares)	31,299,469	31,603,498
Diluted earnings per common share (in dollars per share)	$ 0.03	$ (1.03)
Anti-dilutive weighted shares excluded from the calculation of earnings (loss) per common share:
Anti-dilutive weighted shares excluded from the calculation of earnings per share (in shares)	1,268,962	6,656,443
Stock-based awards
Anti-dilutive weighted shares excluded from the calculation of earnings (loss) per common share:
Anti-dilutive weighted shares excluded from the calculation of earnings per share (in shares)	66,264	608,279
Convertible senior notes
Anti-dilutive weighted shares excluded from the calculation of earnings (loss) per common share:
Anti-dilutive weighted shares excluded from the calculation of earnings per share (in shares)	601,349	3,024,082
Note Warrant
Anti-dilutive weighted shares excluded from the calculation of earnings (loss) per common share:
Anti-dilutive weighted shares excluded from the calculation of earnings per share (in shares)	601,349	3,024,082