Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of Summary of Operating Lease, Right of Use Assets and Lease Liabilities

The following table presents a summary of operating lease, right of use assets and

lease liabilities. 

	December 31,
	2023	2022
	(In thousands)
Operating lease, right of use asset	$11,469	$13,115
Lease liabilities, current	$1,791	$1,600
Lease liabilities, non-current	11,488	13,278
Total lease liability	$13,279	$14,878

Schedule of Company’s Material Property Leases

The following table presents certain facts regarding the Company’s material property leases.

Location	Purpose	Square Footage	Expiration (1)	Option to Extend (2)
San Leandro, California	Headquarters, R&D and manufacturing	171,000	December-2028	1 / 5 years
Tracy, California	Manufacturing and warehouse	54,429	April-2030	1 / 5 years
Katy, Texas	Office, R&D, warehouse, and yard	221,220	June-2029	2 / 5 years

(1)Month-Year of original lease expiration

(2)Number of renewal option(s) / Number of year(s) per renewal option

Schedule of Lease Cost

The following table presents operating lease activities related to all leased properties.

	Years Ended December 31,
	2023	2022	2021
(In thousands)
Operating lease expense	$2,571	$2,571	$2,571
Cash payments	2,580	2,650	2,431

Schedule of Weighted Average Lease Term and Discount Rate

The following table presents other information related to outstanding operating leases as of December 31, 2023.

Weighted average remaining lease term	5.5 years
Weighted average discount rate	7.0%

Schedule of Maturities of Lease Liabilities

As of December 31, 2023, the following table presents the minimum lease payments by year under noncancelable operating leases,

exclusive of execution costs.

Year	Lease Liabilities
	(In thousands)
2024	$2,812
2025	2,736
2026	2,982
2027	3,072
2028	3,165
2029 and thereafter	1,243
Total future minimum lease payments	16,010
Less imputed lease interest	(2,731)
Total lease liabilities	$13,279

Schedule of Product Warranty Liability

The following table presents the changes in the Company’s accrued product warranty reserve.

	Years Ended December 31,
	2023	2022	2021
(In thousands)
Warranty reserve balance, beginning of year	$968	$879	$760
Warranty costs charged to cost of revenue	515	483	445
Utilization charges against reserve	(92)	(64)	(16)
Release of accrual related to expired warranties	(334)	(330)	(310)
Warranty reserve balance, end of year	$1,057	$968	$879