(Loss) Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Numerator:
Net income (loss)-numerator for net income (loss) per common share and net income (loss) per common share assuming dilution	$ (2,520)	$ (873)	$ (10,404)	$ 3,225
Denominator:
Denominator for net income (loss) per common share — weighted average shares	13,792	8,713	13,244	8,719
Effect of dilutive securities-stock options (in shares)				40
Adjusted weighted average shares and assumed exercises	13,792	8,713	13,244	8,759
Anti-dilutive shares
Number of anti-dilutive shares	3,231	1,020	2,080	720