Investments in Privately-held Raw Material Companies - Minority Investment Entities (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest [Abstract]
Net revenue	$ 27,923,000	$ 18,595,000	$ 50,611,000	$ 38,000,000
Gross profit	7,652,000	1,715,000	13,746,000	6,825,000
Net income	(1,199,000)	(5,353,000)	(3,247,000)	(9,019,000)
Five Minority Investments
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest [Abstract]
Net revenue	9,338,000	7,678,000	17,442,000	15,652,000
Gross profit	4,161,000	2,648,000	8,090,000	5,554,000
Operating income	4,035,000	3,163,000	7,406,000	5,172,000
Net income	2,044,000	913,000	5,182,000	4,858,000
Gross Profit [Abstract]
Entity income (loss) excluding impairment	$ 600,000	$ 18,000	$ 1,500,000	$ 1,000,000.0