Investments - Schedule of Amortized Cost, Unrealized Gains and Losses, and Market Value of Investment Securities (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Cost	$ 107,998,521	$ 207,829,040
Unrealized Gains	3,285,583	8,722,554
Unrealized Losses	(1,202,448)	(10,543,405)
Market Value	110,081,656	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	89,170	17,220
Unrealized Losses	0	0
Market Value	2,923,883	2,851,933
Short-Term Investments | Certificate of Deposit
Debt Securities, Available-for-sale [Line Items]
Cost		750,000
Unrealized Gains		1,728
Unrealized Losses		0
Market Value		751,728
Short-Term Investments | Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	5,152,845	4,013,735
Unrealized Gains	23,694	0
Unrealized Losses	0	(42,535)
Market Value	5,176,539	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		3,400,019
Unrealized Gains		472
Unrealized Losses		(13,991)
Market Value		3,386,500
Short-Term Investments | Other
Debt Securities, Available-for-sale [Line Items]
Cost	966,611	1,400,176
Unrealized Gains	0	0
Unrealized Losses	0	0
Market Value	966,611	1,400,176
Long-Term Investments | Asset-backed Securities
Debt Securities, Available-for-sale [Line Items]
Cost	32,113,870	41,372,112
Unrealized Gains	1,076,012	620,756
Unrealized Losses	(70,030)	(226,764)
Market Value	33,119,852	41,766,104
Long-Term Investments | Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Cost	42,281,982	54,552,964
Unrealized Gains	1,477,570	355,627
Unrealized Losses	(900,098)	(371,074)
Market Value	42,859,454	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	24,648,500	40,542,837
Unrealized Gains	619,137	209,564
Unrealized Losses	(232,320)	(1,294,083)
Market Value	$ 25,035,317	39,458,318
Long-Term Investments | VOXX Common Stock | VOXX
Debt Securities, Available-for-sale [Line Items]
Cost		48,774,886
Unrealized Gains		7,502,949
Unrealized Losses		(8,574,932)
Market Value		$ 47,702,903