Income Taxes - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) business	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Operating Loss Carryforwards [Line Items]
Taxes incurred	$ (11,786,000)	$ (3,308,000)	$ 417,000
Tax rate differential(state and foreign)	5.00%	1.30%	(0.50%)
Number of businesses acquired | business	4
Deferred tax liabilities	$ 12,200,000
Income tax benefit (expense)	11,786,000	$ 3,308,000	$ (417,000)
Cumulative tax loss carryforwards	28,200,000
Deferred tax benefit	371,000	241,000	176,000
Increase of valuation allowance	28,240,000	16,457,000	14,807,000
Potential deferred tax assets	300,000
Uncertain tax positions	256,000	0	0	$ 0
Uncertain tax positions, accrued interest and penalties	0	0	0
Inland Revenue Malaysia
Operating Loss Carryforwards [Line Items]
Taxes incurred		3,300,000
Income tax benefit (expense)		(3,300,000)
Deferred tax liabilities related to land-use rights			8,200,000
Benefit from amortization		3,100,000
Cumulative tax loss carryforwards			200,000
Deferred tax benefit	400,000
Tax loss carryforwards, subject to expiration	$ 9,100,000
State Administration of Taxation, China
Operating Loss Carryforwards [Line Items]
Tax rate differential(state and foreign)	25.00%
Acquisitions In 2021
Operating Loss Carryforwards [Line Items]
Taxes incurred	$ (10,100,000)
Income tax benefit (expense)	10,100,000
Timios | Selling, general and administrative expenses
Operating Loss Carryforwards [Line Items]
Taxes incurred	100,000
Income tax benefit (expense)	(100,000)
United States - Federal
Operating Loss Carryforwards [Line Items]
Cumulative tax loss carryforwards	191,400,000	99,300,000	83,100,000
Deferred tax benefit	0	0	0
United States - Federal | Inland Revenue Malaysia
Operating Loss Carryforwards [Line Items]
Tax loss carryforwards, subject to expiration	3,400,000
PRC/Hong Kong/Singapore/Malaysia
Operating Loss Carryforwards [Line Items]
Cumulative tax loss carryforwards	26,900,000	24,000,000	28,300,000
Deferred tax benefit	371,000	$ 241,000	$ 176,000
PRC/Hong Kong/Singapore/Malaysia | Inland Revenue Malaysia
Operating Loss Carryforwards [Line Items]
Tax loss carryforwards, subject to expiration	3,300,000
PRC/Hong Kong/Singapore/Malaysia | State Administration of Taxation, China
Operating Loss Carryforwards [Line Items]
Tax loss carryforwards, subject to expiration	$ 23,000,000