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Cash, Cash Equivalents and Short-Term Investments - Summary of Short-term Investments with Unrealized Losses (Details) | Dec. 31, 2018 USD ($)
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Cash And Cash Equivalents And Short Term Investments [Line Items] |
Less Than 12 Months, Estimated Fair Value | $ 10,976,777
Less Than 12 Months, Unrealized Losses. | (9,796)
US Treasury Securities |
Cash And Cash Equivalents And Short Term Investments [Line Items] |
Less Than 12 Months, Estimated Fair Value | 1,987,630
Less Than 12 Months, Unrealized Losses. | (164)
Corporate Debt Securities |
Cash And Cash Equivalents And Short Term Investments [Line Items] |
Less Than 12 Months, Estimated Fair Value | 5,957,235
Less Than 12 Months, Unrealized Losses. | (6,678)
Asset-backed Securities |
Cash And Cash Equivalents And Short Term Investments [Line Items] |
Less Than 12 Months, Estimated Fair Value | 3,031,912
Less Than 12 Months, Unrealized Losses. | $ (2,954)

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- Definition Cash and cash equivalents and short-term investments. + References No definition available. + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months. + References No definition available. + Details
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- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563 + Details
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