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Available-for-Sale Securities

3 Months Ended

Mar. 31, 2020

Investments Debt And Equity Securities [Abstract]

Available-for-Sale Securities

4. Available-for-Sale Securities

As of March 31, 2020 and December 31, 2019, the fair value of available-for-sale securities by type of security was as follows:

		March 31, 2020
		Amortized Cost				Gross Unrealized Gain				Gross Unrealized Loss				Fair Value
Investments:
Corporate bond securities		$	401			$	—			$	(1	)		$	400
		$	401			$	—			$	(1	)		$	400

		December 31, 2019
		Amortized Cost				Gross Unrealized Gain				Gross Unrealized Loss				Fair Value
Investments:
Corporate bond securities			1,502				1				—				1,503
Commercial paper			5,978				—				—				5,978
		$	7,480			$	1			$	—			$	7,481

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

		March 31, 2020								December 31, 2019
		Amortized Cost				Fair Value				Amortized Cost				Fair Value
Due in one year or less		$	401			$	400			$	7,480			$	7,481
Total available-for-sale securities		$	401			$	400			$	7,480			$	7,481

The weighted average maturity of the Company’s available-for-sale securities as of March 31, 2020 and December 31, 2019 was approximately 0.2 years and 0.2 years, respectively.

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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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