Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies ??? Evaluation of Ability to Maintain Current Level of Operations (Details)

v3.7.0.1
Summary of Significant Accounting Policies – Evaluation of Ability to Maintain Current Level of Operations (Details)
$ in Thousands
 12 Months Ended
Jun. 02, 2017
USD ($)
item
Mar. 31, 2017
USD ($)
agreement
Mar. 31, 2016
USD ($)
Jun. 30, 2015
USD ($)
Jun. 29, 2015
USD ($)
Mar. 31, 2015
USD ($)
Net loss   $ 23,921 $ 25,191      
Cash used in operating activities   18,546 22,468      
Cash, cash equivalents and restricted cash   19,705 16,706     $ 32,221
Outstanding borrowings   $ 11,533 9,459      
Bridge Bank            
Number of secured credit facilities | item 2          
Term of credit agreements 2 years          
Wells Fargo            
Number of credit and security agreements | agreement   2        
Credit Facility | Bridge Bank            
Maximum borrowing capacity under facility $ 12,000          
Credit Facility | Wells Fargo            
Outstanding borrowings   $ 11,500 $ 9,500      
Maximum borrowing capacity under facility   20,000   $ 20,000 $ 15,000  
Doubt about Company’s ability to meet obligations for next 12 months            
Net loss   23,900        
Cash used in operating activities   18,500        
Cash, cash equivalents and restricted cash   19,700        
Doubt about Company’s ability to meet obligations for next 12 months | Credit Facility            
Outstanding borrowings   $ 11,500