Quarterly report pursuant to Section 13 or 15(d)

Severance and Other Restructuring Costs - Additional Information (Detail)

v3.4.0.3
Severance and Other Restructuring Costs - Additional Information (Detail)
$ in Thousands
3 Months Ended
Apr. 06, 2016
USD ($)
Installments
Apr. 30, 2016
USD ($)
Apr. 30, 2015
USD ($)
Restructuring Cost and Reserve [Line Items]      
Restructuring charges   $ 1,775 $ 212
CEO [Member] | Separation Agreement [Member]      
Restructuring Cost and Reserve [Line Items]      
Employee separation related liabilities including bonus payable $ 1,000    
Bonus payable 200    
Employee separation liability payable $ 800    
Number of equal monthly installments | Installments 12    
Timeline Labs [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges   600  
Timeline Labs [Member] | Canada [Member]      
Restructuring Cost and Reserve [Line Items]      
Other restructuring charges, (relating to remaining lease obligation)   200  
Timeline Labs [Member] | Former Employees [Member]      
Restructuring Cost and Reserve [Line Items]      
Severance costs   $ 400