Cash and cash equivalents and short-term investments.

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- Definition

Cash And Cash Equivalents At Carrying Value And Available For Sale Securities Debt Securities Current.

+ References

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- Definition

Cash And Cash Equivalents At Carrying Value Available And Available For Sale Debt Securities Amortized Cost Basis.

+ References

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- Definition

Cash equivalents at carrying value and available for sale debt securities amortized cost basis.

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- Definition

Cash equivalents at carrying value and available for sale securities debt securities current.

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No definition available.

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- Definition

Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

+ References

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- Definition

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aa)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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-Subparagraph (SX 210.5-02.2)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of investments in debt securities classified as available-for-sale, expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26626-111562

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
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Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Cash, Cash Equivalents and Short-Term Investments - Schedule of Cash and Cash Equivalents and Short-term Investments by Significant Investment Category (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Cash	$ 1,309,876
Short term investments Gross Unrealized Losses	(1,696)
Short term investments	18,463,148
Cash and cash equivalents and Short term investments, Amortized Cost	36,630,491
Cash and cash equivalents and Short term investments, Estimated Fair Value	36,628,795
Cash and cash equivalents	18,165,647	$ 45,161,403	$ 16,826,304	$ 5,335,913
Level 1
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short term investments Gross Unrealized Losses	(88)
Cash equivalents and Short term investments, Amortized Cost	15,090,401
Cash equivalents and Short term investments, Estimated Fair Value	15,090,313
Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short term investments Gross Unrealized Losses	(1,608)
Short term investments	17,228,423
Cash equivalents and Short term investments, Amortized Cost	20,230,214
Cash equivalents and Short term investments, Estimated Fair Value	20,228,606
Money Market Funds \| Level 1
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Cash equivalents	13,855,588
Repurchase Agreements \| Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Cash equivalents	3,000,183
Commercial Paper \| Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short Term Investments Amortized Cost	10,430,502
Short term investments	10,430,502
Corporate Debt Securities \| Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short Term Investments Amortized Cost	6,049,066
Short term investments Gross Unrealized Losses	(1,458)
Short term investments	6,047,608
US Treasury Securities \| Level 1
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short Term Investments Amortized Cost	1,234,813
Short term investments Gross Unrealized Losses	(88)
Short term investments	1,234,725
Asset-backed Securities \| Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short Term Investments Amortized Cost	750,463
Short term investments Gross Unrealized Losses	(150)
Short term investments	$ 750,313