Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2022

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued expenses were as follows:

	September 30, 2022		December 31, 2021
Accrued payroll	$	4,659	$	3,069
Warranty reserve	3,956		2,112
Accrued legal and professional expenses	987		826
Provision for contract losses	1,693		—
Insurance premium payable, current (1)	2,356		—
Other	2,315		1,667
Total accrued expenses	$	15,966	$	7,674

(1) Refer to Note 12, Borrowings for additional information.

Schedule of Product Warranty Liability

The following table summarizes warranty reserve activity:

	Three months ended September 30,				Nine months ended September 30,
	2022		2021		2022		2021
Warranty reserve - beginning of period	$	3,636	$	872	$	2,112	$	—
Additions for current period deliveries	962		917		2,463		1,757
Changes in the warranty reserve estimate	—		(61)		1,321		(29)
Warranty costs incurred	(642)		—		(1,940)		—
Warranty reserve - end of period	$	3,956	$	1,728	$	3,956	$	1,728