Goodwill

Goodwill is comprised of the purchase price of business combinations in excess of the fair value assigned at acquisition to the net tangible and identifiable intangible assets acquired and is not amortized. The Company assesses goodwill for impairment at least annually, or when events or changes in the business environment indicate that the carrying value may not be fully recoverable. The Company performs its annual impairment review during the fourth quarter at the reporting unit level. Goodwill may be considered impaired if the carrying value of the reporting unit, including goodwill, exceeds the reporting unit’s fair value. The Company is comprised of one reporting unit. The Company experienced a significant decline in its stock price during the three months ended September 30, 2019 resulting in a drop in its market capitalization indicating potential impairment. The Company determined the fair value of the reporting unit using its market capitalization, concluding that the fair value of the reporting unit is less than the carrying amount in excess of Goodwill, therefore fully impairing Goodwill. Goodwill impairment is presented within continuing operations in the condensed consolidated statements of operations. A reconciliation of the change in the carrying value of Goodwill is as follows:

Indefinite-Lived Intangible Assets

The Company’s indefinite-lived intangible asset, OncoHist, is IPR&D relating to the Company’s business combination with SymbioTec in 2012. The carrying value of the IPR&D was approximately $9.2 million as of September 30, 2019 and December 31, 2018, respectively. IPR&D is required to be tested annually until the project is completed or abandoned. The IPR&D is not yet commercialized and, therefore, has not yet begun to be amortized as of September 30, 2019. The Company assesses IPR&D for impairment at least annually as of October 1 or when events or changes in circumstances indicate that the carrying value may be impaired. No impairment was recorded during the nine months ended September 30, 2019 nor during the year ended December 31, 2018.