XML 75 R64.htm IDEA: XBRL DOCUMENT v3.20.1
Employee Stock Purchase Plan (Details) - USD ($)
shares in Thousands, $ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2015
Feb. 01, 2020
Feb. 02, 2019
Feb. 03, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock-based compensation expense   $ 2,104 $ 2,829 $ 2,294
Employee Stock Purchase Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Number of shares granted under ESPP 800      
Percentage of market value per share fixed as purchase price 85.00%      
Stock-based compensation expense   $ 133 $ 143 $ 160