Investments (Details)	Dec. 31, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	$ 23,987,087
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	374
Corporate debt securities, unrealized loss	(9,439)
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	330
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(4,166)
Corporate debt securities, cost	8,625,728
Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0
Corporate debt securities, cost	1,195,444
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	44
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(5,273)
Corporate debt securities, cost	14,165,915
Estimate of Fair Value Measurement [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	23,978,022
Estimate of Fair Value Measurement [Member] \| US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	8,621,892
Estimate of Fair Value Measurement [Member] \| Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	1,195,444
Estimate of Fair Value Measurement [Member] \| Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	$ 14,160,686

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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