Investments - Schedule of Amortized Cost, Unrealized Gains and Losses, and Market Value of Investment Securities (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Cost	$ 174,332,862	$ 172,587,805
Unrealized Gains	381,113	236,375
Unrealized Losses	(9,929,613)	(13,034,062)
Market Value	164,784,362	159,790,118
Short-Term Investments | Certificate of Deposit
Debt Securities, Available-for-sale [Line Items]
Cost	1,000,000	1,750,256
Unrealized Gains	0	0
Unrealized Losses	(10,802)	(14,093)
Market Value	989,198	1,736,163
Short-Term Investments | Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	1,982,128	5,571,417
Unrealized Gains	0	0
Unrealized Losses	(54,827)	(98,076)
Market Value	1,927,301	5,473,341
Short-Term Investments | Government Securities
Debt Securities, Available-for-sale [Line Items]
Cost	5,198,015	4,476,613
Unrealized Gains	0	0
Unrealized Losses	(21,800)	(53,572)
Market Value	5,176,215
Short-Term Investments | Municipal Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	2,431,031	5,223,500
Unrealized Gains	0	0
Unrealized Losses	(21,170)	(48,727)
Market Value	2,409,861
Short-Term Investments | Other
Debt Securities, Available-for-sale [Line Items]
Cost	4,723,625	2,347,602
Unrealized Gains	0	0
Unrealized Losses	0	0
Market Value	4,723,625	2,347,602
Long-Term Investments | Asset Backed Securities
Debt Securities, Available-for-sale [Line Items]
Cost	21,273,402	19,151,229
Unrealized Gains	0	0
Unrealized Losses	(208,532)	(321,533)
Market Value	21,064,870	18,829,696
Long-Term Investments | Certificate of Deposit
Debt Securities, Available-for-sale [Line Items]
Cost	750,000	250,000
Unrealized Gains	0	0
Unrealized Losses	(9,050)	(11,075)
Market Value	740,950	238,925
Long-Term Investments | Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	53,814,699	40,410,206
Unrealized Gains	0	0
Unrealized Losses	(3,330,600)	(4,099,729)
Market Value	50,484,099	36,310,477
Long-Term Investments | Government Securities
Debt Securities, Available-for-sale [Line Items]
Cost	29,640,890	39,637,461
Unrealized Gains	0	0
Unrealized Losses	(1,343,360)	(3,104,827)
Market Value	28,297,530	36,532,634
Long-Term Investments | Municipal Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	51,881,686	53,476,883
Unrealized Gains	378,802	235,713
Unrealized Losses	(4,676,763)	(5,282,430)
Market Value	47,583,725	48,430,166
Long-Term Investments | Common Stock
Debt Securities, Available-for-sale [Line Items]
Cost	1,637,386	292,638
Unrealized Gains	2,311	662
Unrealized Losses	(252,709)	0
Market Value	$ 1,386,988	$ 293,300