Revenue Recognition	6 Months Ended
Jun. 30, 2019
Revenue From Contract With Customer [Abstract]
Revenue Recognition	5. Revenue recognition On January 1, 2018, the Company adopted ASC 606, “Revenue from Contracts with Customers,” (“Topic 606”) using the modiﬁed retrospective method applied to all contracts that were not completed contracts at the date of initial application. There was no impact on the opening accumulated deﬁcit as of January 1, 2018 due to the adoption of Topic 606. Revenue is recognized when control of goods or services is transferred to the Company’s customers, in an amount that reﬂects the consideration the Company expects to be entitled to in exchange for those goods or services. The Company’s performance obligation is to provide on demand solutions to its customers by leveraging its proprietary technology and applying machine learning and advanced analytics to its massive data repository. The pricing for the customer contracts is based on usage, a monthly fee, or a combination of both. Available within Topic 606, the Company has applied the portfolio approach practical expedient in accounting for customer revenue as one collective group, rather than individual contracts. Based on the Company’s historical knowledge of the contracts contained in this portfolio and the similar nature and characteristics of the customers, the Company has concluded the financial statement effects are not materially different than if accounting for revenue on a contract by contract basis. Revenue is recognized over a period of time since the performance obligation is delivered in a series. The Company’s customers simultaneously receive and consume the benefits provided by the Company’s performance as and when provided. Furthermore, the Company has elected the “right to invoice” practical expedient, available within Topic 606, as its measure of progress, since it has a right to payment from a customer in an amount that corresponds directly with the value of its performance completed-to-date. The Company's revenue arrangements do not contain significant financing components. For the three months ended June 30, 2019 and 2018, 62% and 52% of total revenue was attributable to customers with pricing contracts, respectively, versus 38% and 48% attributable to transactional customers, respectively. For the six months ended June 30, 2019 and 2018, 64% and 48% of total revenue was attributable to customers with pricing contracts, respectively, versus 36% and 52% attributable to transactional customers, respectively. Pricing contracts are generally annual contracts or longer, with auto renewal. If a customer pays consideration before the Company transfers services to the customer, those amounts are classiﬁed as deferred revenue. As of June 30, 2019 and December 31, 2018, the balance of deferred revenue was $56 and $26, respectively, all of which is expected to be realized in the next 12 months. In relation to the deferred revenue balance as of December 31, 2018, $10 and $26 was recognized into revenue during the three and six months ended June 30, 2019, respectively. As of June 30, 2019, $3,626 of revenue is expected to be recognized in the future for outstanding performance obligations, primarily related to pricing contracts that have a term of more than 12 months. $980 of revenue will be recognized in the remainder of 2019, $1,639 in 2020, $1,004 in 2021, and $3 in 2022. The actual timing of recognition may vary due to factors outside of the Company’s control. The Company excludes variable consideration related entirely to wholly unsatisfied performance obligations and contracts and recognizes such variable consideration based upon the right to invoice the customer. Sales commissions are incurred and recorded on an ongoing basis over the term of the customer relationship. These costs are recorded in sales and marketing expenses. In addition, the Company elected the practical expedient to 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.

Revenue Recognition

6 Months Ended

Jun. 30, 2019

Revenue From Contract With Customer [Abstract]

5. Revenue recognition

On January 1, 2018, the Company adopted ASC 606, “Revenue from Contracts with Customers,” (“Topic 606”) using the modiﬁed retrospective method applied to all contracts that were not completed contracts at the date of initial application. There was no impact on the opening accumulated deﬁcit as of January 1, 2018 due to the adoption of Topic 606. Revenue is recognized when control of goods or services is transferred to the Company’s customers, in an amount that reﬂects the consideration the Company expects to be entitled to in exchange for those goods or services. The Company’s performance obligation is to provide on demand solutions to its customers by leveraging its proprietary technology and applying machine learning and advanced analytics to its massive data repository. The pricing for the customer contracts is based on usage, a monthly fee, or a combination of both.

Available within Topic 606, the Company has applied the portfolio approach practical expedient in accounting for customer revenue as one collective group, rather than individual contracts. Based on the Company’s historical knowledge of the contracts contained in this portfolio and the similar nature and characteristics of the customers, the Company has concluded the financial statement effects are not materially different than if accounting for revenue on a contract by contract basis.

Revenue is recognized over a period of time since the performance obligation is delivered in a series. The Company’s customers simultaneously receive and consume the benefits provided by the Company’s performance as and when provided. Furthermore, the Company has elected the “right to invoice” practical expedient, available within Topic 606, as its measure of progress, since it has a right to payment from a customer in an amount that corresponds directly with the value of its performance completed-to-date. The Company's revenue arrangements do not contain significant financing components.

For the three months ended June 30, 2019 and 2018, 62% and 52% of total revenue was attributable to customers with pricing contracts, respectively, versus 38% and 48% attributable to transactional customers, respectively. For the six months ended June 30, 2019 and 2018, 64% and 48% of total revenue was attributable to customers with pricing contracts, respectively, versus 36% and 52% attributable to transactional customers, respectively. Pricing contracts are generally annual contracts or longer, with auto renewal.

If a customer pays consideration before the Company transfers services to the customer, those amounts are classiﬁed as deferred revenue. As of June 30, 2019 and December 31, 2018, the balance of deferred revenue was $56 and $26, respectively, all of which is expected to be realized in the next 12 months. In relation to the deferred revenue balance as of December 31, 2018, $10 and $26 was recognized into revenue during the three and six months ended June 30, 2019, respectively.

As of June 30, 2019, $3,626 of revenue is expected to be recognized in the future for outstanding performance obligations, primarily related to pricing contracts that have a term of more than 12 months. $980 of revenue will be recognized in the remainder of 2019, $1,639 in 2020, $1,004 in 2021, and $3 in 2022. The actual timing of recognition may vary due to factors outside of the Company’s control. The Company excludes variable consideration related entirely to wholly unsatisfied performance obligations and contracts and recognizes such variable consideration based upon the right to invoice the customer.

Sales commissions are incurred and recorded on an ongoing basis over the term of the customer relationship. These costs are recorded in sales and marketing expenses.

In addition, the Company elected the practical expedient to 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.