Accounts receivable and other receivables (Tables)
 12 Months Ended
Mar. 28, 2020
Receivables [Abstract]  
Summary of Accounts Receivable, Net of Allowance for Doubtful Accounts
Accounts receivable, net of allowance for doubtful accounts, at March 28, 2020 and March 30, 2019 consist of the following:
 
   
As of
 
   
March 28, 2020
   
March 30, 2019
 
   
(In thousands)
 
Customer trade receivables
  $4,119   $1,268 
Other receivables
   1,900    2,269 
  
 
 
   
 
 
 
  
$
6,019
 
  
$
3,537
 
  
 
 
   
 
 
 
Schedule of Continuity of Allowance for Doubtful Accounts
Continuity of the allowance for doubtful accounts is as follows (in thousands):
 
Balance March 25, 2017
  $286 
Additional provisions recorded
   227 
  
 
 
 
Balance March 31, 2018
   513 
Additional provisions recorded
   170 
Net write offs
   (249) 
  
 
 
 
Balance March 30, 2019
   434 
Additional provisions recorded
   857 
Net write offs
   (326) 
  
 
 
 
Balance March 28, 2020
  $965