Investments (Tables)

6 Months Ended

Jun. 30, 2023

Investments [Abstract]

Schedule of Investment Securities Stated at Fair Value

Assets or liabilities that have recurring fair value measurements are shown below as of June 30, 2023 and December 31, 2022:

As of June 30, 2023:

			Fair Value Measurements at Reporting Date Using
	Total as of		Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
Description	June 30, 2023		(Level 1)		(Level 2)		(Level 3)
Cash & Cash Equivalents	$	237,665,601	$	237,665,601	$	—	$	—
Short-Term Investments:
Certificate of Deposit	1,244,803		1,244,803		—		—
Corporate Bonds	1,917,173		—		1,917,173		—
Government Securities	4,715,195		—		4,715,195		—
Municipal Bonds	3,475,351		—		3,475,351		—
Other	4,671,277		1,204,252		3,467,025		—
Long-Term Investments:
Asset Backed Securities	16,904,936		—		16,904,936		—
Certificate of Deposit	982,015		982,015		—		—
Corporate Bonds	46,808,383		—		46,808,383		—
Government Securities	29,169,577		—		29,169,577		—
Municipal Bonds	52,836,126		—		52,836,126		—
Common Stock	1,094,374		1,094,374		—		—
Total	$	401,484,811	$	242,191,045	$	159,293,766	$	—

As of December 31, 2022:

			Fair Value Measurements at Reporting Date Using
	Total as of		Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
Description	December 31, 2022		(Level 1)		(Level 2)		(Level 3)
Cash & Cash Equivalents	$	214,754,638	$	214,754,638	$	—	$	—
Restricted Cash	4,000,000		4,000,000		—		—
Short-Term Investments:
Certificate of Deposit	1,736,163		1,736,163		—		—
Corporate Bonds	5,473,341		—		5,473,341		—
Government Securities	4,423,041		—		4,423,041		—
Municipal Bonds	5,174,773		—		5,174,773		—
Other	2,347,602		1,093,602		1,254,000		—
Long-Term Investments:
Asset-backed Securities	18,829,696		—		18,829,696		—
Certificate of Deposit	238,925		238,925		—		—
Corporate Bonds	36,310,477		—		36,310,477		—
Governmental Securities	36,532,634		—		36,532,634		—
Municipal Bonds	48,430,166		—		48,430,166
Common Stock	293,300		293,300		—		—
Total	$	378,544,756	$	222,116,628	$	156,428,128	$	—

Schedule of Amortized Cost, Unrealized Gains and Losses, And Market Value of Investment Securities

The amortized cost, unrealized gains and losses, and market value of investment securities are shown as of June 30, 2023 and December 31, 2022:

As of June 30, 2023:

			Unrealized
	Cost		Gains		Losses		Market Value
Short-Term Investments:
Certificate of Deposit	$	1,250,000	$	—	$	(5,197)	$	1,244,803
Corporate Bonds	1,988,060		—		(70,887)		1,917,173
Government Securities	4,754,815		—		(39,620)		4,715,195
Municipal Bonds	3,493,481		—		(18,130)		3,475,351
Other	4,671,277		—		—		4,671,277
Long-Term Investments:
Asset Backed Securities	17,111,473		—		(206,537)		16,904,936
Certificate of Deposit	1,000,000		—		(17,985)		982,015
Corporate Bonds	50,055,216		1,660		(3,248,493)		46,808,383
Government Securities	30,736,849		—		(1,567,272)		29,169,577
Municipal Bonds	57,325,671		336,990		(4,826,535)		52,836,126
Common Stock	842,085		252,288		—		1,094,373
Total	$	173,228,927	$	590,938	$	(10,000,656)	$	163,819,209

As of December 31, 2022:    

			Unrealized
	Cost		Gains		Losses		Market Value
Short-Term Investments:
Certificate of Deposit	$	1,750,256	$	—	$	(14,093)	$	1,736,163
Corporate Bonds	5,571,417		—		(98,076)		5,473,341
Government Securities	4,476,613		—		(53,572)		4,423,041
Municipal Bonds	5,223,500		—		(48,727)		5,174,773
Other	2,347,602		—		—		2,347,602
Long-Term Investments:
Asset-backed Securities	19,151,229		—		(321,533)		18,829,696
Certificate of Deposit	250,000		—		(11,075)		238,925
Corporate Bonds	40,410,206		—		(4,099,729)		36,310,477
Government Securities	39,637,461		—		(3,104,827)		36,532,634
Municipal Bonds	53,476,883		235,713		(5,282,430)		48,430,166
Common Stock	292,638		662		—		293,300
Total	$	172,587,805	$	236,375	$	(13,034,062)	$	159,790,118

Schedule of Unrealized Loss on Investments

Unrealized losses on investments as of June 30, 2023, are as follows:

	Aggregate Unrealized Losses		Aggregate Fair Value of Investments
Loss duration of less than one year	$	516,647	$	40,487,017
Loss duration of greater than one year	9,484,009		111,100,115
Total	$	10,000,656	$	151,587,132

Unrealized losses on investments as of December 31, 2022, are as follows:

	Aggregate Unrealized Losses		Aggregate Fair Value of Investments
Loss duration of less than one year	$	4,816,103	$	77,701,146
Loss duration of greater than one year	8,217,959		76,643,586
Total	$	13,034,062	$	154,344,732

Schedule of Investments Classified by Contractual Maturity Date

Fixed income securities as of June 30, 2023 have contractual maturities as follows:

Due within one year	$	11,352,521
Due between one and five years	95,024,741
Due over five years	51,676,296
	$	158,053,558