Fair Value Instruments - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Asset included in:
Investments available-for-sale at fair value	$ 15,187,672	$ 6,298,075
Corporate Debt Securities
Asset included in:
Investments available-for-sale at fair value	15,187,672	6,298,075
Fair Value, Measurements, Recurring
Asset included in:
Financial Assets	25,243,048	28,294,627
Fair Value, Measurements, Recurring | Money Market Securities
Asset included in:
Cash and cash equivalents	10,055,376	17,497,282
Fair Value, Measurements, Recurring | Corporate Debt Securities
Asset included in:
Cash and cash equivalents		4,499,270
Investments available-for-sale at fair value	15,187,672	6,298,075
Fair Value, Measurements, Recurring | Level 1
Asset included in:
Financial Assets	10,055,376	17,497,282
Fair Value, Measurements, Recurring | Level 1 | Money Market Securities
Asset included in:
Cash and cash equivalents	10,055,376	17,497,282
Fair Value, Measurements, Recurring | Level 2
Asset included in:
Financial Assets	15,187,672	10,797,345
Fair Value, Measurements, Recurring | Level 2 | Corporate Debt Securities
Asset included in:
Cash and cash equivalents		4,499,270
Investments available-for-sale at fair value	$ 15,187,672	$ 6,298,075