Note 6. Revenue Recognition

Effective January 1, 2018, the Company adopted the new accounting standard related to the recognition of revenue in contracts with customers using the modified retrospective transition method applied to those contracts which were not completed as of January 1, 2018. Accordingly, results for reporting periods beginning after January 1, 2018 are presented under the new accounting standard, while prior period amounts have not been adjusted and continue to be reported in accordance with the previous revenue recognition guidance. The impact to revenue and results of operations for the three-month and six-month periods ended June 30, 2018 compared to the same periods in 2017 was not material.

The Company derives revenues from sales of additive manufacturing systems, consumables and services. The Company sells its products directly through its sales force and independent sales agents and indirectly through authorized resellers.

The Company determines revenue recognition through the following steps:

Revenue is measured as the amount of consideration expected to be received in exchange for transferring goods or providing services to the end customer or to the reseller. The amount of consideration is usually at fixed price at the contract inception. Taxes assessed by various government entities, such as sales, use and value-added taxes, collected at the time of sale are excluded from revenue. Shipping and handling costs billed to customers are included in revenue.

Revenue from products, which consist of systems and consumables, is recognized when the customer has obtained control of the goods, in most cases at a point in time based on the shipping terms. The Company recognizes revenue on sales to resellers when the reseller has economic substance apart from the Company and the reseller is considered the principal for the transaction with the end-user customer. Service revenue derives from service type warranty and from the Company’s direct manufacturing parts services. Revenue from service type warranty under a contract is recognized ratably on a straight-line basis over the time of the service, as control is transferred over time or as services are performed if not under contract. For direct manufacturing parts, control is transferred at a point in time, usually upon shipment of the parts.

For multiple performance obligations arrangements, such as when selling a system with a service type warranty, the Company accounts for the individual performance obligations separately if they are distinct. The transaction price is allocated to the separate performance obligations on a relative standalone selling price (“SSP”) basis and revenue is recognized for each performance obligation when control has passed. In most cases, the Company is able to establish SSP based on the observable prices of services sold separately in comparable circumstances to similar customers and for products based on the Company’s best estimates of the price at which the Company would have sold the product regularly on a stand-alone basis. The Company reassesses the SSP on a periodic basis or when facts and circumstances change.

In assessing collectability as part of the revenue recognition process, the Company considers a number of factors in the evaluation of the creditworthiness of the customer, including past due amounts, payment history and financial condition. In some cases where collectability is not assured, payment terms are set partially or entirely as prepayment or customers may be required to furnish letters of credit.

Contract Assets and Contract Liabilities

Contract assets are recorded when the Company's right to consideration is conditional on constraints other than the passage of time. The Company had no material contract assets as of June 30, 2018.

Contract liabilities include advance payments and billings in excess of revenue recognized. Contract liabilities are presented under deferred revenues.

The Company's deferred revenue as of June 30, 2018 and December 31, 2017 were as follows:

The Company provides customers with an initial service type warranty, usually for a period of one to three years, and defers a portion of the revenue from the related printer at the time of the sale. The Company also offers customers an option to purchase an additional service type warranty via a contract ranging generally from one to three years. Deferred revenues are derived mainly from these service type warranty contracts.

Revenue recognized in the six months ended June 30, 2018 that was included in deferred revenue balance as of January 1, 2018 was $36.0 million.

The Company expects to recognize revenue from deferred revenues in amounts of approximately $54.1 million in the next twelve months, $9.6 million in the following twelve-month period and $5.5 million thereafter.

Incremental Costs of Obtaining a Contract

Sales commissions earned mainly by the Company’s sales agents are considered incremental costs of obtaining a contract with a customer. The majority of the sales commissions are not subject to capitalization as the commission expense is recognized as the related revenue is recognized. Sales commissions for initial contracts related to the service type warranty are deferred and then amortized on a straight-line basis over the expected customer relationship period if the Company expects to recover those costs. The Company determined the period of benefit by taking into consideration customer contracts including renewals, the technology and other factors. Amortization expense is included in selling, general and administrative expenses in the consolidated statements of operations.

The Company recorded the cumulative effect of deferred commission as an adjustment to the opening balance of retained earnings in an amount of $1.4 million. As of June 30, 2018, the deferred commission amounted to $2.0 million.