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Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Schedule of Company's Classified Assets Measured at Fair Value on Recurring Basis

At December 31, 2019 and 2018, the Company has classified assets measured at fair value on a recurring basis as follows (in thousands):

		Fair Value Measurements at Reporting Date Using
		December 31,				Quoted Prices in Active Markets for Identical Assets				Significant Other Observable Inputs				Significant Unobservable Inputs
Description		2019				(Level 1)				(Level 2)				(Level 3)
Money market funds		$	3,240			$	3,240			$	—			$	—
Commercial paper (included in cash and    cash equivalents)			4,249				—				4,249				—
Commercial paper (included in marketable    securities)			20,501				—				20,501				—
Corporate debt securities (included in cash    and cash equivalents)			6,005				—				6,005				—
Corporate debt securities (included in    marketable securities)			71,383				—				71,383				—
U.S. government agency securities and    treasuries			9,005				—				9,005				—
Total		$	114,383			$	3,240			$	111,143			$	—
		Fair Value Measurements at Reporting Date Using
		December 31,				Quoted Prices in Active Markets for Identical Assets				Significant Other Observable Inputs				Significant Unobservable Inputs
Description		2018				(Level 1)				(Level 2)				(Level 3)
Money market funds		$	265			$	265			$	—			$	—
Commercial paper (included in short-term    investments)			57,453				—				57,453				—
Corporate debt securities  (included in    short-term investments)			50,052				—				50,052				—
U.S. government agency securities and    treasuries			3,972				1,987				1,985				—
Total		$	111,742			$	2,252			$	109,490			$	—

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- References

No definition available.

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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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