CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 404,487,743	$ 428,403,272	$ 318,757,352
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	94,714,662	93,321,192	96,568,443
Gain on disposal of assets	(1,294,798)	(355,544)	(70,736)
Loss on disposal of assets	90,145	443,373	28,424
Gain on sale of investments and equity method investment income	(5,365,966)	(5,492,269)	(392,040)
Loss on sale of investments and equity method investment losses	9,991,670	11,476,947	2,104,907
Deferred income taxes	(12,421,412)	(17,735,110)	(17,777,777)
Stock based compensation expense related to employee stock options, employee stock purchases and restricted stock	39,539,362	39,197,422	30,228,606
Impairment Charges	8,864,704	0	0
Change in operating assets and liabilities:
Accounts receivable	27,106,680	(45,251,116)	(26,698,846)
Inventories	(32,624,417)	2,127,242	(88,092,828)
Prepaid expenses and other	(9,873,572)	(4,101,866)	(28,788,331)
Accounts payable	(26,021,165)	40,951,490	37,423,488
Accrued liabilities	1,019,584	(5,735,441)	14,909,867
Net cash flows from operating activities	498,213,220	537,249,592	338,200,529
Activity in available-for-sale securities:
Sales proceeds	42,675,048	58,847,341	37,429,595
Maturities and calls	16,235,000	17,445,000	3,500,000
Purchases	(51,086,506)	(80,908,455)	(17,810,350)
VOXX share purchases	(31,450,000)	(16,941,043)	(383,843)
Purchase of technology investments	(27,659,631)	(71,083,511)	(45,743,460)
Plant and equipment additions	(144,669,002)	(183,678,460)	(146,433,123)
Proceeds from sale of plant and equipment	3,310,600	292,723	313,917
Acquisition of businesses, net of cash acquired	(2,870,769)	(18,936,539)	0
Increase in other assets	(6,563,157)	(4,453,376)	(3,611,244)
Net cash used for investing activities	(202,078,417)	(299,416,320)	(172,738,508)
CASH FLOWS USED FOR FINANCING ACTIVITIES:
Issuance of common stock from stock plan transactions	27,295,127	29,398,272	16,602,274
Cash dividends paid	(110,438,045)	(112,150,060)	(113,091,921)
Repurchases of common stock	(206,108,138)	(147,401,103)	(112,529,406)
Net cash used for financing activities	(289,251,056)	(230,152,891)	(209,019,053)
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	6,883,747	7,680,381	(43,557,032)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, Beginning of year	226,435,019	218,754,638	262,311,670
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, End of year	233,318,766	226,435,019	218,754,638
Non-cash investing and financing activities:
Change in Property and equipment in accounts payable and accrued expenses and other current liabilities	$ (9,802,961)	$ 6,927,750	$ 14,608,665