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Short-term Investments (Tables)

9 Months Ended

Sep. 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 September 30, 2021 and December 31, 2020:


									As of September 30, 2021
			Contractual Maturity (in years)						Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Market Value
Mutual funds			---						$	201,961,325					$	1,341,184					$	(812,450)					$	202,490,059
U.S. treasury securities			Less than 1						119,670,627						—						(2,087)						119,668,540

Certificates of deposit			Less than 1						2,975,870						16,110						(343)						2,991,637
U.S. agency mortgage-backed securities			*						1,859,828						11,789						(22,617)						1,849,000

									$	326,467,650					$	1,369,083					$	(837,497)					$	326,999,236


									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.