Revenue by Service Line

Contract Balances

During the three months ended March 31, 2021, the Company recognized capital equipment and software-related service revenue of approximately $0.1 million, which was previously included in deferred revenue in the accompanying condensed consolidated balance sheet at December 31, 2020.

In 2019, the Company entered into a Development Services Agreement with a customer under which the Company was entitled to bill the customer for an upfront payment of $0.13 million, of which approximately $0.06 million is included in deferred revenue in each of the accompanying March 31, 2021 and December 31, 2020 condensed consolidated balance sheets.

Commencing in 2019, the Company was a party to a Letter of Intent and a related Statement of Work (together with the Letter of Intent, the “Project Documents”) with a customer who is a stockholder and a noteholder (see Note 5), and an officer of whom is a member of the Company’s Board of Directors, to commence a product development project. Under the terms of the Project Documents, the Company was entitled to bill the customer for: (a) an upfront, nonrefundable payment of $0.5 million which was received in 2019; and (b) quarterly service fees of $0.5 million. In February 2020, the Company entered into a Supply Agreement and a Statement of Work (the “European SOW”) with a European affiliate of the customer. Under the terms of the European SOW, the Company was entitled to bill the customer on a quarterly basis, commencing in the first quarter of 2020, for service fees of $0.25 million. During 2020, the clinical trials contemplated by the Project Documents and the European SOW were delayed as a result of the COVID-19 pandemic. As a result, the Company agreed to reduce such quarterly service fees by an aggregate of $0.25 million through September 30, 2020. In November 2020, the Company entered into an addendum to the Project Documents and the European SOW that, among other provisions, set the customer’s aggregate at $0.7 million per quarter, effective October 1, 2020. The Company recognized as revenue the upfront payment described in this paragraph ratably over the initial two years of the term of the Project Documents, corresponding to the estimated period in which the related performance obligations were expected to be satisfied, and recognizes as revenue the quarterly service fees described in this paragraph as stand-by services beginning in the quarter such services commenced. Based on the foregoing: (a) the Company recognized revenue of approximately $0.7 million for each of the three months ended March 31, 2021 and 2020; (b) there was no accounts receivable balance from the customer at March 31, 2021; accounts receivable from the customer at December 31, 2020 amounted to approximately $0.1 million; and (c) approximately $0.07 million and $0.1 million of the aggregate amount of all the payments described in this paragraph were included in deferred revenue in the accompanying condensed consolidated balance sheets at March 31, 2021 and December 31, 2020, respectively.

The Company offers an upgraded version of its software at no additional charge to customers purchasing a three-year systems service agreement. The transaction prices of the software and the service agreement are determined through an allocation of the service agreement price based on the standalone prices of the software and the service agreements customarily charged by the Company. The transaction price of the software is recognized as revenue upon its installation and comprised approximately $0.1 million of unbilled accounts receivable at each of March 31, 2021 and December 31, 2020.

Remaining Performance Obligations

The Company’s contracts with customers, other than capital equipment and software-related service agreements discussed below, are predominantly of terms less than one year. Accordingly, the transaction prices of remaining performance obligations related to such contracts at March 31, 2021 are not material.

Revenue with respect to remaining performance obligations related to capital equipment and software-related service agreements with original terms in excess of one year and the upfront payments discussed under the heading “Contract Balances” above amounted to approximately $0.6 million at March 31, 2021. The Company expects to recognize this revenue within the next three years.