Restructurings (Tables)
 6 Months Ended
Apr. 30, 2016
Restructuring Charges [Abstract]  
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
Activity related to our restructuring plans for the six months ended April 30, 2016 consisted of the following (in thousands):
 
Restructuring Plans
 
 
 
June 2014 Plan
 
July 2015 Plan
 
 
 
Employee
Involuntary Termination Benefits
 
Facilities
Related
Costs
 
Employee
Involuntary Termination Benefits
 
Total
Balance at October 31, 2015
$
1,027

 
$
5

 
$
5,090

 
$
6,122

Charges, net of adjustments
734

 
—

 
(256
)
 
478

Cash payments
(567
)
 
(5
)
 
(3,168
)
 
(3,740
)
Balance at April 30, 2016
$
1,194

 
$
—

 
$
1,666

 
$
2,860

Cumulative costs to date
$
12,957

 
$
853

 
$
7,087

 
Restructuring and Related Costs [Table Text Block]
The following table presents the restructuring expense recognized in our Condensed Consolidated Statements of Operations (in thousands):
 
Three Months Ended April 30,
 
Six Months Ended April 30,
 
2016
 
2015
 
2016
 
2015
Cost of net revenues
$
(28
)
 
$
(48
)
 
$
(89
)
 
$
35

Research and development
595

 
32

 
628

 
154

Sales and marketing
(13
)
 
108

 
(483
)
 
793

General and administrative
21

 
69

 
422

 
552

Total restructuring expense
$
575

 
$
161

 
$
478

 
$
1,534