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Short-term Investments

3 Months Ended

Mar. 31, 2022

Short Term Investments [Abstract]

Short-term Investments

5. Short-term Investments

The following is a summary of our short-term investments (in thousands):

		March 31, 2022
						Gross				Gross
		Amortized				Unrealized				Unrealized				Estimated
		Cost				Gains				Losses				Fair Value
U.S. treasury bills and government agency obligations		$	30,016			$	—			$	(7	)		$	30,009
U.S. corporate debt securities			3,502				—				(2	)			3,500
Foreign commercial paper			21,490				—				—				21,490
Total		$	55,008			$	—			$	(9	)		$	54,999

		December 31, 2021
						Gross				Gross
		Amortized				Unrealized				Unrealized				Estimated
		Cost				Gains				Losses				Fair Value
U.S. corporate debt securities		$	15,009			$	—			$	(3	)		$	15,006
Foreign corporate debt securities			10,551				—				(3	)			10,548
U.S. commercial paper			5,998				—				—				5,998
Foreign commercial paper			35,487				—				—				35,487
Total		$	67,045			$	—			$	(6	)		$	67,039

The amortized cost of debt securities is adjusted for amortization of premiums and accretion of discounts to maturity. We regularly monitor and evaluate the realizable value of our marketable securities. We did not recognize any impairment losses during the three months ended March 31, 2022 and 2021.

Unrealized gains and losses associated with our investments are reported in accumulated other comprehensive loss. Realized gains and losses associated with our investments, if any, are reported in the statements of operations and comprehensive loss. We did not recognize any realized gains or losses during the three months ended March 31, 2022 and 2021.

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- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-URI http://asc.fasb.org/subtopic&trid=2209399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-URI http://asc.fasb.org/subtopic&trid=2324412

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-URI http://asc.fasb.org/subtopic&trid=2176304

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1403
-Paragraph (b)

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- References

No definition available.

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