The Company and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Antidilutive Securities Excluded from Computation of Diluted Net Loss Per Share

The following table sets forth securities outstanding which were excluded from the computation of diluted net loss per share as their inclusion would be anti-dilutive (in thousands):

	December 31,
	2020		2019
Options to purchase common stock		159		161
Unvested restricted common stock units		65		103
Convertible debt		271		254
Warrants		1,879		1,994
Total		2,374		2,512