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Fair Value Measurements (Tables) | 9 Months Ended
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Sep. 30, 2020
Fair Value Disclosures [Abstract] |
Schedule of assets measured at fair value on recurring basis | The following tables present financial assets and liabilities at September 30, 2020 and December 31, 2019 for which the Company measures fair value on a recurring basis, by level, within the fair value hierarchy:
September 30, 2020 | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Valuation Technique
Assets |  |  |  |  |  |  |  |  |
Money market mutual funds | $ | 7,507 |  |  | $ | 7,507 |  |  | $ | — |  |  | $ | — |  |  | (a)
United States treasuries | 14,995 |  |  | 14,995 |  |  | — |  |  | — |  |  | (a)
December 31, 2019 | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Valuation Technique
Assets |  |  |  |  |  |  |  |  |
Money market mutual funds | $ | 29,907 |  |  | $ | 29,907 |  |  | $ | — |  |  | $ | — |  |  | (a)
(a)Market approach—prices and other relevant information generated by market transactions involving identical or comparable assets.

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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 + Details
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