Annual report pursuant to Section 13 and 15(d)

Significant Balance Sheet Components - Additional Information (Details)

v3.20.4
Significant Balance Sheet Components - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Significant Balance Sheet Components [Abstract]    
Inventory reserve adjustment $ 70 $ 3,100
Accrued loss on purchase commitments 500 700
Depreciation expense $ 426 $ 621