Cash, Cash Equivalents and Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2018

Investments Debt And Equity Securities [Abstract]

Summary of Cash, Cash Equivalents and Marketable Securities

The following tables summarizes the Company’s cash, cash equivalents and marketable securities as of December 31, 2018 and 2017.  

As of December 31, 2018
	Amortized Cost		Unrealized Gain		Unrealized (Loss)			Fair Value
Cash and cash equivalents	$	7,600,284	$	—	$	—		$	7,600,284
Corporate Debt Securities	$	18,961,145	$	—	$	(25,888	)	$	18,935,257
Commercial Paper		6,970,867		—		(4,927	)		6,965,940
U.S. Treasury Bonds		35,074,005		—		(12,115	)		35,061,890
Total marketable securities	$	61,006,017	$	—	$	(42,930	)	$	60,963,087
Total cash, cash equivalents and marketable securities	$	68,606,301	$	—	$	(42,930	)	$	68,563,371
As of December 31, 2017
	Amortized Cost		Unrealized Gain		Unrealized (Loss)			Fair Value
Cash and cash equivalents	$	13,224,280	$	—	$	(86	)	$	13,224,194
Corporate Debt Securities	$	19,014,590	$	923	$	(17,827	)	$	18,997,686
Commercial Paper		2,979,367		—		(1,227	)		2,978,140
U.S. Government Sponsored Agencies		1,496,824		—		(2,029	)		1,494,795
Certificate of Deposits		480,000		—		(55	)		479,945
Total marketable securities	$	23,970,781	$	923	$	(21,138	)	$	23,950,566
Total cash, cash equivalents and marketable securities	$	37,195,061	$	923	$	(21,224	)	$	37,174,760