Notes Payable - Narrative (Detail) $ in Thousands		1 Months Ended		3 Months Ended
	Aug. 01, 2022 USD ($)	May 31, 2019 USD ($) installment	Nov. 30, 2016 USD ($)	Mar. 31, 2023 USD ($) agreement	Dec. 31, 2022 USD ($)
Debt Disclosure [Line Items]
Number of offtake supply agreements (in agreements) | agreement				8
Number of offtake supply agreements with same customer (in agreements) | agreement				2
Note principal outstanding				$ 5,189	$ 5,847
Promissory Note
Debt Disclosure [Line Items]
Prepayment from stockholder			$ 5,000
Debt instrument, increase, accrued interest		$ 200
Number of installments (in installments) | installment		3
Long-term debt, maturity, year two	$ 2,700
Long-term debt, maturity, year three	1,900
Long-term debt, maturity, year four	$ 1,800
Accrued interest rate	3.50%
Note principal outstanding				5,200	5,200
Accrued interest				$ 700	$ 600
Initial term of offtake supply agreement				10 years
Promissory Note | Legacy stockholder note
Debt Disclosure [Line Items]
Principal amount	$ 5,200