COMMITMENTS AND CONTINGENCIES

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

In 2018, the Company entered into a two (2) year lease extension for approximately 20,000 square feet of office space, which serves as the Company’s corporate headquarters and as a laboratory facility. During 2018, the Company also entered into a two year and three month lease for 7,952 square feet of additional office space, which serves as an expansion of the corporate headquarters. The Company leases various other office, warehousing, and production space under non-cancelable operating leases, which expire at various times through 2031. The Company also leases most of its vehicles and office equipment under non-cancelable operating leases, which expire at various times through 2025. Rent expense charged to operations under such lease agreements for 2018, 2017 and 2016 aggregated approximately $3,917, $3,417 and $3,134, respectively.

Aggregate future minimum rental payments required under non-cancelable operating leases at December 31, 2018 are as follows:



Year
2019	$	3,445
2020	2,911
2021	2,002
2022	1,401
2023	1,182
Thereafter	5,687
Total minimum lease payments	$	16,628

The Company’s Verona, Missouri facility, while held by a prior owner, was designated by the EPA as a Superfund site and placed on the National Priorities List in 1983, because of dioxin contamination on portions of the site. Remediation was conducted by the prior owner under the oversight of the EPA and the Missouri Department of Natural Resources (“MDNR”). While the Company must maintain the integrity of the capped areas in the remediation areas on the site, the prior owner is responsible for completion of any further Superfund remedy. The Company is indemnified by the sellers under its May 2001 asset purchase agreement covering its acquisition of the Verona, Missouri facility for potential liabilities associated with the Superfund site.

From time to time, the Company is a party to various litigation, claims and assessments. Management believes that the ultimate outcome of such matters will not have a material effect on the Company’s consolidated financial position, results of operations, or liquidity.