Commitments and Contingent Liabilities (Tables)

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liability

The following table sets forth the Company’s product warranty accrual:

	Warranty Liability
Balance as of December 31, 2020	$	1,249
Additions to warranty liability	226
Warranty liability utilized	(518)
Balance as of June 30, 2021	$	957

Schedule Of Future Payments Of Legal Settlements

The expected payments under the UPRR Settlement Agreement for the remainder of the year ending December 31, 2021 and thereafter are as follows:

Year Ending December 31,
Remainder of 2021	$	6,000
2022	8,000
2023	8,000
2024	8,000
Total	$	30,000

Environmental Loss Contingencies

The following table sets forth the Company’s environmental obligation:

	Environmental liability
Balance as of December 31, 2020	$	2,562
Environmental obligations utilized	(38)
Balance as of June 30, 2021	$	2,524