Investments - Schedule of Amortized Cost, Unrealized Gains and Losses, and Market Value of Investment Securities (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Cost	$ 157,018,555	$ 207,829,040
Unrealized Gains	10,634,592	8,722,554
Unrealized Losses	(9,496,938)	(10,543,405)
Market Value	158,156,209	206,008,189
Short-Term Investments | Asset-backed Securities
Debt Securities, Available-for-sale [Line Items]
Cost	2,834,713	2,834,713
Unrealized Gains	44,975	17,220
Unrealized Losses	0	0
Market Value	2,879,688	2,851,933
Short-Term Investments | Certificate of Deposit
Debt Securities, Available-for-sale [Line Items]
Cost	750,000	750,000
Unrealized Gains	500	1,728
Unrealized Losses	0	0
Market Value	750,500	751,728
Short-Term Investments | Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	4,152,042	4,013,735
Unrealized Gains	22,803	0
Unrealized Losses	0	(42,535)
Market Value	4,174,845	3,971,200
Short-Term Investments | Government Securities
Debt Securities, Available-for-sale [Line Items]
Cost		3,981,161
Unrealized Gains		1,114
Unrealized Losses		0
Market Value		3,982,275
Short-Term Investments | Municipal Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	905,312	3,400,019
Unrealized Gains	0	472
Unrealized Losses	(1,839)	(13,991)
Market Value	903,473	3,386,500
Short-Term Investments | Other
Debt Securities, Available-for-sale [Line Items]
Cost	803,922	1,400,176
Unrealized Gains	0	0
Unrealized Losses	0	0
Market Value	803,922	1,400,176
Long-Term Investments | Asset-backed Securities
Debt Securities, Available-for-sale [Line Items]
Cost	31,707,199	41,372,112
Unrealized Gains	911,438	620,756
Unrealized Losses	(95,495)	(226,764)
Market Value	32,523,142	41,766,104
Long-Term Investments | Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	42,455,161	54,552,964
Unrealized Gains	1,295,023	355,627
Unrealized Losses	(956,766)	(371,074)
Market Value	42,793,418	54,537,517
Long-Term Investments | Government Securities
Debt Securities, Available-for-sale [Line Items]
Cost		6,206,437
Unrealized Gains		13,124
Unrealized Losses		(20,026)
Market Value		6,199,535
Long-Term Investments | Municipal Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	24,635,320	40,542,837
Unrealized Gains	478,603	209,564
Unrealized Losses	(265,262)	(1,294,083)
Market Value	24,848,661	39,458,318
Long-Term Investments | Common Stock | VOXX
Debt Securities, Available-for-sale [Line Items]
Cost	48,774,886	48,774,886
Unrealized Gains	7,881,250	7,502,949
Unrealized Losses	(8,177,576)	(8,574,932)
Market Value	$ 48,478,560	$ 47,702,903