8. Segment Information Prior to January 1, 2018, our operations were organized into two reportable segments: PFSweb and Business and Retail Connect. In accordance with ASC 280, Segment Reporting (ASC 280), an operating segment is defined as a component of an enterprise for which discrete financial information is available and is reviewed regularly by the Chief Operating Decision Maker (CODM), or decision-making group, to evaluate performance and make operating decisions. Effective January 1, 2018, we changed our organizational structure in an effort to create more effective and efficient operations and to improve client and service focus. In that regard, we revised the information that our chief executive officer and chief financial officer, who are also our Chief Operating Decision Makers, regularly review for purposes of allocating resources and assessing performance. As a result, beginning January 1, 2018, we now report our financial performance based on our new reportable segments. These segments are comprised of strategic businesses that are defined by the service offerings they provide and consist of PFS Operations (which provides client services in relation to the customer physical experience, such as order management (OMS), order fulfillment, customer care and financial services) and LiveArea Professional Services (which provides client services in relation to the digital shopping experience of shopping online, such as strategic commerce consulting, strategy, design and digital marketing services and technology services) . Each segment is led by a separate Business Unit Executive who reports directly to our Chief Executive Officer. The CODM evaluates segment performance using business unit direct contribution, which is defined as business unit revenues less costs of fees and direct selling, general and administrative expenses, including depreciation and amortization. Direct contribution does not include any allocated corporate expenses nor does it include stock-based compensation. The CODM does not routinely review assets by segment. The balance sheet by segment is not prepared and, therefore, we do not present segment assets below. Corporate operations is a non-operating segment that develops and implements strategic initiatives and supports our operations by centralizing certain administrative functions such as finance, treasury, information technology and human resources. All prior period segment information has been restated to conform to the 2018 presentation. The changes in the reportable segments have no effect on the consolidated balance sheets, statements of operations or cash flows for the periods presented. Subsequent to the change in our operating segments, our reporting units changed. We now have two reporting units: PFS Operations and LiveArea Professional Services. We allocated goodwill to our new reporting units using a relative fair value approach. In addition, we completed an assessment of any potential goodwill impairment for all reporting units immediately prior to and after the reallocation and determined that no impairment existed. The following table discloses segment information for the periods presented (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Revenues: PFS Operations $ 56,277 $ 52,810 $ 169,379 $ 166,706 LiveArea Professional Services 21,424 24,508 63,794 67,446 Total revenues $ 77,701 $ 77,318 $ 233,173 $ 234,152 Business unit direct contribution: PFS Operations $ 5,636 $ 5,211 $ 18,460 $ 15,145 LiveArea Professional Services 4,274 4,313 10,149 8,890 Total business unit direct contribution $ 9,910 $ 9,524 $ 28,609 $ 24,035 Unallocated corporate expenses (9,233 ) (8,357 ) (26,729 ) (27,882 ) Income (loss) from operations $ 677 $ 1,167 $ 1,880 $ (3,847 )