Short-Term Investments

9 Months Ended

Sep. 30, 2020

Cash Cash Equivalents And Short Term Investments [Abstract]

Short-Term Investments

3. Short-Term Investments

The following table summarizes the Company’s short-term investments as of September 30, 2020 and December 31, 2019 (in thousands):

	September 30, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. treasury securities	$	5,000	$	—	$	—		$	5,000
	$	5,000	$	—	$	—		$	5,000
	December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. government-sponsored enterprise    securities	$	20,456	$	2	$	(1	)	$	20,457
U.S. treasury securities		23,996		7		(1	)		24,002
	$	44,452	$	9	$	(2	)	$	44,459

Short-term investments represent holdings of available-for-sale debt securities and are reported at fair value with unrealized gains and losses reported net of taxes, if material, in other comprehensive income. The Company did not have any realized gains or losses on its short-term investments for the three and nine months ended September 30, 2020 and 2019, respectively. There were no other-than-temporary impairments recognized for the three and nine months ended September 30, 2020 and 2019, respectively.