Restructuring and Severance	9 Months Ended
Sep. 30, 2020
Restructuring And Related Activities [Abstract]
Restructuring and Severance	15. Restructuring and Severance Restructuring expenses incurred in the three and nine months ended September 30, 2019 consist primarily of facility rental related costs associated with the sublet 3VR office space in San Francisco, California, offset by sublease income received from a tenant which is subletting the office space over the remaining term of the original lease. The restructuring accrual at September 30, 2019 related to the Company’s future rental payment obligation associated with vacated office space at its Fremont, California facility. In the three and nine months ended September 30, 2020, the Company incurred restructuring expenses of $163,000 and $1,645,000, respectively, consisting of severance related costs of $145,000 and $229,000, respectively, and facility rental related costs associated with the 3VR office space of approximately $18,000 and $1,416,000, respectively. The facility rental related costs included a charge of $1,199,000 associated with the impairment of the ROU operating lease asset, which was subleased, but has gone into default due to non-payment of rent beginning April 1, 2020. Sublease income of $198,000 was received in the first quarter of 2020, however, since the first quarter of 2020, no rental payments have been received.

Restructuring and Severance

9 Months Ended

Sep. 30, 2020

Restructuring And Related Activities [Abstract]

15. Restructuring and Severance

Restructuring expenses incurred in the three and nine months ended September 30, 2019 consist primarily of facility rental related costs associated with the sublet 3VR office space in San Francisco, California, offset by sublease income received from a tenant which is subletting the office space over the remaining term of the original lease. The restructuring accrual at September 30, 2019 related to the Company’s future rental payment obligation associated with vacated office space at its Fremont, California facility.

In the three and nine months ended September 30, 2020, the Company incurred restructuring expenses of $163,000 and $1,645,000, respectively, consisting of severance related costs of $145,000 and $229,000, respectively, and facility rental related costs associated with the 3VR office space of approximately $18,000 and $1,416,000, respectively. The facility rental related costs included a charge of $1,199,000 associated with the impairment of the ROU operating lease asset, which was subleased, but has gone into default due to non-payment of rent beginning April 1, 2020. Sublease income of $198,000 was received in the first quarter of 2020, however, since the first quarter of 2020, no rental payments have been received.