Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Warrants (Details)

v3.19.2
Shareholders' Equity - Warrants (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
May 02, 2019
Nov. 27, 2018
Aug. 03, 2019
Aug. 03, 2019
Aug. 04, 2018
Class of Warrant or Right [Line Items]          
Warrants outstanding     7,349,365 7,349,365  
Warrants exercisable     7,349,365 7,349,365  
Warrant exercise period 5 years     5 years  
Share-based compensation expense       $ 1,257 $ 1,358
Warrants Granted September 2016 [Member]          
Class of Warrant or Right [Line Items]          
Warrants outstanding     2,976,190 2,976,190  
Warrants exercisable     2,976,190 2,976,190  
Exercise Price (Per Share)     $ 2.90 $ 2.90  
Expiration Date     Sep. 19, 2021 Sep. 19, 2021  
Warrants Granted November 2016 [Member]          
Class of Warrant or Right [Line Items]          
Warrants outstanding     333,873 333,873  
Warrants exercisable     333,873 333,873  
Exercise Price (Per Share)     $ 3.00 $ 3.00  
Expiration Date     Nov. 10, 2021 Nov. 10, 2021  
Warrants Granted January 2017 [Member]          
Class of Warrant or Right [Line Items]          
Warrants outstanding     489,302 489,302  
Warrants exercisable     489,302 489,302  
Exercise Price (Per Share)     $ 1.76 $ 1.76  
Expiration Date     Jan. 23, 2022 Jan. 23, 2022  
Warrants Granted March 2017 [Member]          
Class of Warrant or Right [Line Items]          
Warrants outstanding     50,000 50,000  
Warrants exercisable     50,000 50,000  
Exercise Price (Per Share)     $ 1.92 $ 1.92  
Expiration Date     Mar. 16, 2022 Mar. 16, 2022  
Warrants Granted May 2019 [Member]          
Class of Warrant or Right [Line Items]          
Warrants outstanding     3,500,000 3,500,000  
Warrants exercisable     3,500,000 3,500,000  
Exercise Price (Per Share)     $ 1.50 $ 1.50  
Expiration Date     May 02, 2024 May 02, 2024  
Warrants Granted November 2018 [Member]          
Class of Warrant or Right [Line Items]          
Warrants issued   1,500,000      
Award Vesting Period   3 years      
Total grant date fair value   $ 441      
Warrant shares forfeited     1,500,000