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Short-term Investments and Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2024
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, 2024 and December 31, 2023:
 As of September 30, 2024
 Contractual
Maturity (in years)
CostGross Unrealized
Gains
Gross Unrealized
Losses
Fair Market Value
Mutual funds---$36,127,635 $— $(1,712,020)$34,415,615 
U.S. treasury securities
Less than 1
24,812,301 16,999 — 24,829,300 
Certificates of deposit
Less than 1
2,979,932 10,242 (285)2,989,889 
U.S. agency mortgage-backed securities*1,270,330 — (387,846)882,484 
$65,190,198 $27,241 $(2,100,151)$63,117,288 
 As of December 31, 2023
Contractual
Maturity (in years)
CostGross Unrealized
Gains
Gross Unrealized
Losses
Fair Market Value
Mutual funds---$55,389,289 $— $(3,522,888)$51,866,401 
U.S. treasury securities
Less than 1
75,164,782 24,938 — 75,189,720 
Certificates of deposit
Less than 1
2,978,917 11,709 (300)2,990,326 
U.S. agency mortgage-backed securities*1,340,439 — (403,973)936,466 
$134,873,427 $36,647 $(3,927,161)$130,982,913 
*No single maturity date.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
The following table presents the Company’s assets that were measured at fair value on a recurring basis, determined using the following inputs as of September 30, 2024:

Fair Value Measurements at
 September 30, 2024
 TotalQuoted Prices
in Active Markets
(Level 1)
Significant
Other Unobservable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Short-term investments
     Mutual funds$34,415,615 $34,415,615 $— $— 
     U.S. treasury securities24,829,300 24,829,300 — — 
     Certificates of deposit2,989,889 — 2,989,889 — 
     U.S. agency mortgage-backed securities882,484 — 882,484 — 
Total short-term investments63,117,288 59,244,915 3,872,373 — 
Investment in affiliated entity2,644,226 2,644,226 — — 
Total assets measured at fair value$65,761,514 $61,889,141 $3,872,373 $— 

The following table presents the Company’s assets that were measured at fair value on a recurring basis, determined using the following inputs as of December 31, 2023:
Fair Value Measurements at
 December 31, 2023
 TotalQuoted Prices
in Active Markets
(Level 1)
Significant
Other Unobservable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Short-term investments
     Mutual funds$51,866,401 $51,866,401 $— $— 
     U.S. treasury securities75,189,720 75,189,720 — — 
     Certificates of deposit2,990,326 — 2,990,326 — 
     U.S. agency mortgage-backed securities936,466 — 936,466 — 
Total short-term investments130,982,913 127,056,121 3,926,792 — 
Investment in affiliated entity2,780,287 2,780,287 — — 
Total assets measured at fair value$133,763,200 $129,836,408 $3,926,792 $—