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Goodwill and Intangibles	12 Months Ended
Goodwill and Intangibles	Dec. 31, 2019
Goodwill and Intangibles
Goodwill and Intangibles	5. Goodwill and Intangibles The net book value of intangible assets subject to amortization was zero at December 31, 2019 and 2018. Amortization of the technology intangible assets of zero, $100,000 and $545,000 in 2019, 2018 and 2017, respectively, was recorded in cost of revenue. At December 31, 2019 and 2018, the carrying value of goodwill was $5.5 million.