Marketable Securities and Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2020

Fair Value, Assets Measured on Recurring and Nonrecurring Basis

As of December 31, 2020 and December 31, 2019, all of our marketable securities are classified as available-for-sale and consist of the following:


	Cost		Unrealized Gain (Loss)		Fair Value
Short-term marketable securities:
As of December 31, 2020:


Corporate debt securities	$	253	$	(3)	$	250
	$	253	$	(3)	$	250

As of December 31, 2019:
Commercial paper	$	2,487	$	—	$	2,487
U.S. government treasury bills	2,249		1		2,250
Corporate debt securities	2,236		2		2,238
	$	6,972	$	3	$	6,975

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table presents information about our assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheets as of December 31, 2020 and 2019:


	Level 1		Level 2		Level 3		Total
As of December 31, 2020:
Assets:
Cash equivalents:
Money market funds	$	23,832	$	—	$	—	$	23,832


Short-term marketable securities:


Corporate debt securities	—		250		—		250

As of December 31, 2019:
Assets:
Cash equivalents:
Money market funds	$	1,307	$	—	$	—	1,307


Short-term marketable securities:
U.S. government treasury bills	2,250		—		—		2,250
Commercial paper	—		2,487		—		2,487
Corporate debt securities	—		2,238		—		2,238