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Short-term Investments and Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Summary of Investments
The following is a summary of available-for-sale securities as of March 31, 2024 and December 31, 2023:
 As of March 31, 2024
 Contractual
Maturity (in years)
CostGross Unrealized
Gains
Gross Unrealized
Losses
Fair Market Value
Mutual funds---$45,541,438 $— $(3,022,011)$42,519,427 
U.S. treasury securities
Less than 1
39,596,119 — (8,719)39,587,400 
Certificates of deposit
Less than 1
2,979,254 11,222 (295)2,990,181 
U.S. agency mortgage-backed securities*1,331,885 — (415,849)916,036 
$89,448,696 $11,222 $(3,446,874)$86,013,044 
 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 March 31, 2024:

Fair Value Measurements at
 March 31, 2024
 TotalQuoted Prices
in Active Markets
(Level 1)
Significant
Other Unobservable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Short-term investments
     Mutual funds$42,519,427 $42,519,427 $— $— 
     U.S. treasury securities39,587,400 39,587,400 — — 
     Certificates of deposit2,990,181 — 2,990,181 — 
     U.S. agency mortgage-backed securities916,036 — 916,036 — 
Total short-term investments86,013,044 82,106,827 3,906,217 — 
Investment in affiliated entity2,654,269 2,654,269 — — 
Total assets measured at fair value$88,667,313 $84,761,096 $3,906,217 $— 

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 $—