XML 44 R33.htm IDEA: XBRL DOCUMENT v3.6.0.2
Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Thousands
3 Months Ended
Oct. 29, 2016
Jul. 31, 2016
Oct. 31, 2015
Jul. 31, 2015
Cash, Cash Equivalents and Restricted Cash [Abstract]        
Cash and cash equivalents $ 10,683 $ 9,902    
Restricted cash 267 259    
Total cash, cash equivalents and restricted cash $ 10,950 10,161 $ 9,396 $ 8,703
Maximum [Member]        
Restricted Cash and Cash Equivalents Items [Line Items]        
Maturity period considered for highly liquid instruments to be cash equivalents 3 months      
Maximum [Member] | Money Market Funds [Member]        
Restricted Cash and Cash Equivalents Items [Line Items]        
Short-term investments $ 600 $ 300