Revenue from Contracts with Customers

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Revenue from Contracts with Customers

Revenue from Contracts with Customers

Revenues are recognized when control of the promised goods or services is transferred to the customer, in an amount that reflects the consideration the Company expects to be entitled in exchange for those goods or services. In recognizing revenue for products and services, the Company determines the transaction price of purchase orders or contracts with customers, which may consist of fixed and variable consideration. Determining the transaction price may require significant judgment by management, which includes identifying performance obligations, estimating variable consideration to include in the transaction price, and determining whether promised goods or services can be distinguished in the context of the contract. Variable consideration typically consists of product returns and is estimated based on the amount of consideration the Company expects to receive. Revenue accruals are recorded on an ongoing basis to reflect updated variable consideration information.

The majority of the products from the CT segment are sold at a point in time and service contracts are short-term in nature. The DA segment recognizes revenue for sales of equipment at the time of sale. Revenue related to service and support is recognized over time. The Company bills sales on a monthly basis with payment terms customarily 30-45 days for domestic and 60 days for international from invoice receipt. In addition, sales taxes are excluded from revenues.

Disaggregation of Revenue

The Company has disaggregated revenues by product sales (point-in-time revenue recognition) and service revenue (over-time revenue recognition). Product sales accounted for 95% or more of total revenue for the years ended December 31, 2020 and 2019.

The Company differentiates revenue and based on whether the source of revenue is attributable to products or services. Revenue disaggregated by revenue source is as follows (in thousands):

	Years ended December 31,
	2020		2019
Revenue:
Products	$	50,478	$	115,683
Services	2,663		3,670
	$	53,141	$	119,353

Arrangements with Multiple Performance Obligations

The CT and DA segments primarily sell chemicals and equipment recognized at a point in time based on when control transfers to the customer determined by agreed upon delivery terms. Additionally, both segments offer various services associated to products sold which includes field services, installation, maintenance, and other functions. Service revenue is recognized on an over time basis for CT as services are performed as the customer is simultaneously benefiting as the Company performs. For

DA, services are recognized upon completion of commissioning and installation due to the short-term nature of the performance obligation. DA has additional performance obligations related to providing ongoing or reoccurring maintenance. Revenue for these types of arrangements is recognized ratably over time throughout the contract period. Additionally, DA may provide subscription-type arrangements with customers in which monthly reoccurring revenue is recognized ratably over time in accordance with agreed upon terms and conditions. Subscription-type arrangements were not a material revenue stream in 2020.

Contract Balances

Under revenue contracts for both products and services, customers are invoiced once the performance obligations have been satisfied, at which point payment is unconditional. Contract liabilities associated with incomplete performance obligations are not material.

Practical Expedients and Exemptions

The Company applies several practical expedients as discussed below:

•Sales commissions are expensed when incurred because the amortization period would have been one year or less. These costs are recorded within corporate general and administrative expenses.

•The majority of the Company’s services are short-term in nature with a contract term of one year or less. For those contracts, the Company has utilized the practical expedient in ASC 606-10-50-14, exempting the Company from disclosure of the transaction price allocated to remaining performance obligations if the performance obligation is part of a contract that has an original expected duration of one year or less.

•The Company’s payment terms are short-term in nature with settlements of one year or less. The Company utilized the practical expedient in ASC 606-10-32-18, exempting the Company from adjusting the promised amount of consideration for the effects of a significant financing component given that the period between when the Company transfers a promised good or service to a customer and when the customer pays for that good or service will be one year or less.

•In most service contracts, the Company has the right to consideration from a customer in an amount that corresponds directly with the value to the customer of the Company’s performance completed to date. For these contracts, the Company has utilized the practical expedient in ASC 606-10-55-18, allowing the Company to recognize revenue in the amount to which it has a right to invoice.

Accordingly, the Company does not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which the Company recognizes revenue at the amount to which it has the right to invoice for services performed.