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Short-term Investments (Tables)

6 Months Ended

Jun. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Schedule of Summary of Investments

The following is a summary of available-for-sale securities as of June 30, 2021 and December 31, 2020:


									As of June 30, 2021
			Contractual Maturity (in years)						Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Market Value
Mutual funds			---						$	207,475,699					$	1,563,089					$	(579,056)					$	208,459,732
U.S. treasury securities			Less than 1						170,203,940						10,943						(4,754)						170,210,129

Certificates of deposit			Less than 1						2,972,816						25,684						—						2,998,500
U.S. agency mortgage-backed securities			*						3,130,877						2,782						(49,638)						3,084,021

									$	383,783,332					$	1,602,498					$	(633,448)					$	384,752,382


									As of December 31, 2020
			Contractual Maturity (in years)						Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Market Value
Mutual funds			---						$	153,177,675					$	2,339,639					$	(644,140)					$	154,873,174
Certificates of deposit			Less than 1						3,000,000						26,260						(10,000)						3,016,260
U.S. agency mortgage-backed securities			*						3,062,256						—						(36,755)						3,025,501


Total investments									$	159,239,931					$	2,365,899					$	(690,895)					$	160,914,935

*No single maturity date.