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Cash, Cash Equivalents and Short-Term Investments - Summary of Short-term Investments with Unrealized Losses (Details) | 9 Months Ended
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Sep. 30, 2017 USD ($)
Cash, Cash Equivalents and Short-Term Investments [Line Itmes] |
Less Than 12 Months, Estimated Fair Value | $ 8,032,645
Less Than 12 Months, Unrealized Losses. | (1,696)
US Treasury Securities |
Cash, Cash Equivalents and Short-Term Investments [Line Itmes] |
Less Than 12 Months, Estimated Fair Value | 1,234,725
Less Than 12 Months, Unrealized Losses. | (88)
Corporate Debt Securities |
Cash, Cash Equivalents and Short-Term Investments [Line Itmes] |
Less Than 12 Months, Estimated Fair Value | 6,047,607
Less Than 12 Months, Unrealized Losses. | (1,458)
Asset-backed Securities |
Cash, Cash Equivalents and Short-Term Investments [Line Itmes] |
Less Than 12 Months, Estimated Fair Value | 750,313
Less Than 12 Months, Unrealized Losses. | $ (150)

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- Definition Cash and cash equivalents and short-term investments. + References No definition available. + Details
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- Definition Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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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- 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 + Details
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