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Marketable Securities

3 Months Ended

12 Months Ended

Mar. 31, 2020

Dec. 31, 2019

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

3. Marketable Securities

As of March 31, 2020, the fair value of marketable securities by type of security was as follows (in thousands):

Description		Amortized Cost				Unrealized Gains				Unrealized Losses				Fair Value
U.S. government agency securities and treasuries		$	15,079			$	32			$	—			$	15,111
Total		$	15,079			$	32			$	—			$	15,111

As of December 31, 2019, the fair value of marketable securities by type of security was as follows (in thousands):

Description		Amortized Cost				Unrealized Gains				Unrealized Losses				Fair Value
U.S. government agency treasuries and securities		$	57,650			$	49			$	—			$	57,699
Total		$	57,650			$	49			$	—			$	57,699

The estimated fair value and amortized cost of the Company’s available-for-sale securities by contractual maturity are summarized as follows (in thousands):

		March 31, 2020
		Amortized Cost				Fair Value
Due in one year or less		$	15,079			$	15,111
Total		$	15,079			$	15,111

		December 31, 2019
		Amortized Cost				Fair Value
Due in one year or less		$	57,650			$	57,699
Total		$	57,650			$	57,699

3. Marketable Securities

As of December 31, 2019, the fair value of marketable securities by type of security was as follows (in thousands):

Description		Amortized Cost				Unrealized Gains				Unrealized Losses				Fair Value
U.S. government agency treasuries and securities		$	57,650			$	49			$	—			$	57,699
Total		$	57,650			$	49			$	—			$	57,699

As of December 31, 2018, the fair value of marketable securities by type of security was as following (in thousands):

Description		Amortized Cost				Unrealized Gains				Unrealized Losses				Fair Value
U.S. government agency treasuries and securities		$	101,027			$	4			$	(45	)		$	100,986
Total		$	101,027			$	4			$	(45	)		$	100,986

The estimated fair value and amortized cost of the Company’s available-for-sale securities by contractual maturity are summarized as follows:

		December 31, 2019
		Amortized Cost				Fair Value
		(In thousands)
Due in one year or less		$	57,650			$	57,699
Total		$	57,650			$	57,699

		December 31, 2018
		Amortized Cost				Fair Value
		(In thousands)
Due in one year or less		$	101,027			$	100,986
Total		$	101,027			$	100,986

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- References

No definition available.

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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

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