Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

v3.3.1.900
Summary of Significant Accounting Policies - Additional Information (Detail)
 3 Months Ended 12 Months Ended
Jan. 31, 2016
USD ($)
Jan. 31, 2016
USD ($)
Customer
Jan. 31, 2015
USD ($)
Customer
Jan. 31, 2014
USD ($)
Customer
Feb. 28, 2015
USD ($)
Significant Accounting Policies [Line Items]          
Allowance for doubtful accounts receivable $ 415,000 $ 415,000 $ 400,000    
Cost method investment, ownership percentage 20.00% 20.00%      
Capitalized software costs $ 2,400,000 $ 2,400,000      
Loss on impairment 21,500,000 21,464,000      
Goodwill impairment charge 0 15,787,000      
Contingent consideration liability, fair value 0 0     $ 3,200,000
Foreign currency transaction gain (loss), realized   700,000 2,300,000 $ 400,000  
Comprehensive loss   $ (48,556,000) (31,106,000) (3,336,000)  
Minimum period warranty of product   1 year      
Provision for loss contract   $ 9,162,000      
Advertising expense   $ 100,000 $ 100,000 $ 100,000  
Software Development [Member]          
Significant Accounting Policies [Line Items]          
Identified intangible assets, Useful life   3 years      
Total Revenue [Member]          
Significant Accounting Policies [Line Items]          
Number of customers accounted | Customer   2 2 3  
Timeline Labs [Member]          
Significant Accounting Policies [Line Items]          
Loss on impairment   $ 21,900,000      
Goodwill impairment charge   15,800,000      
Intangible assets impairment charge   5,200,000      
Capitalized internal use software impairment charge   900,000      
Loss on impairment due to reversal of contingent consideration liability   400,000      
Contingent consideration liability, fair value $ 0 $ 0      
Credit Concentration Risk [Member] | Accounts Receivable [Member]          
Significant Accounting Policies [Line Items]          
Number of customers accounted | Customer   1 2    
Concentration risk percentage   10.00% 10.00%    
Customer Concentration Risk [Member] | Total Revenue [Member]          
Significant Accounting Policies [Line Items]          
Concentration risk percentage   10.00% 10.00% 10.00%  
Minimum [Member]          
Significant Accounting Policies [Line Items]          
Support agreements   12 months      
Minimum [Member] | Investments in Affiliates [Member]          
Significant Accounting Policies [Line Items]          
Equity method investment, ownership percentage 20.00% 20.00%      
Maximum [Member]          
Significant Accounting Policies [Line Items]          
Support agreements   36 months      
Maximum [Member] | Investments in Affiliates [Member]          
Significant Accounting Policies [Line Items]          
Equity method investment, ownership percentage 50.00% 50.00%