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Restructuring and Severance
3 Months Ended
Mar. 31, 2019
Restructuring And Related Activities [Abstract]  
Restructuring and Severance

15. Restructuring and Severance  

On February 14, 2018, the Company acquired 3VR. As a result of the acquisition, in the three months ended March 31, 2018, the Company incurred restructuring and severance expenses of $0.1 million consisting primarily of facility rental related costs associated with the 3VR office facility in San Francisco, California.  Restructuring and severance expenses incurred in the three months ended March 31, 2019 consist of facility rental costs discussed above, offset by sublease income received from a tenant that sublet the office space in the third quarter of 2018 over the remaining term of the original lease.  In the fourth quarter of 2018, the Company recorded a restructuring accrual of $0.1 million for its future rental payment obligation associated with vacated office space at its Fremont, California facility

Restructuring and severance activities during the three months ended March 31, 2019 and 2018 were as follows (in thousands):

 

 

 

 

Three Months Ended March 31,

 

 

 

2019

 

 

2018

 

Balance at beginning of period

 

$

129

 

 

$

 

Restructuring expense incurred for the period

 

 

(12

)

 

 

110

 

Cash received (cash paid) during the period

 

 

12

 

 

 

(110

)

Balance at end of period

 

$

129

 

 

$