Goodwill	12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill Goodwill represents the excess of the purchase price over the estimated fair value of the net tangible and identifiable intangible assets acquired in business combinations. Our annual impairment assessment of our single reporting unit is performed as of the fourth quarter of each year, and an assessment is performed at other times if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. We adopted ASU 2017-04, Intangibles - Goodwill and Other (Topic 350), during the fourth quarter of 2017. ASC 350 states that an entity should perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. Under the updated guidance, the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment is eliminated. The carrying amount and goodwill recorded for our one reporting unit was $(1,523,874) and $2,286,582, respectively, as of December 31, 2017. We were not aware of any adverse qualitative factors that would indicate any impairment to our goodwill as of the date of our annual assessment for 2017 and as of December 31, 2017. No impairment losses were recorded for goodwill during the years ended December 31, 2017, 2016 and 2015. As of December 31, 2017, the cumulative balance of goodwill impairments recorded since the July 2008 merger (the “Merger”) between our wholly owned subsidiary, Vernon Merger Corporation, and XM Satellite Radio Holdings Inc. (“XM”), was $4,766,190, which was recognized during the year ended December 31, 2008. As a result of the acquisition of Automatic, we recorded additional goodwill of $81,475 during the year ended December 31, 2017.

Goodwill

Goodwill represents the excess of the purchase price over the estimated fair value of the net tangible and identifiable intangible assets acquired in business combinations. Our annual impairment assessment of our single reporting unit is performed as of the fourth quarter of each year, and an assessment is performed at other times if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. We adopted ASU 2017-04, Intangibles - Goodwill and Other (Topic 350), during the fourth quarter of 2017. ASC 350 states that an entity should perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. Under the updated guidance, the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment is eliminated. The carrying amount and goodwill recorded for our one reporting unit was $(1,523,874) and $2,286,582, respectively, as of December 31, 2017. We were not aware of any adverse qualitative factors that would indicate any impairment to our goodwill as of the date of our annual assessment for 2017 and as of December 31, 2017.

No impairment losses were recorded for goodwill during the years ended December 31, 2017, 2016 and 2015. As of December 31, 2017, the cumulative balance of goodwill impairments recorded since the July 2008 merger (the “Merger”) between our wholly owned subsidiary, Vernon Merger Corporation, and XM Satellite Radio Holdings Inc. (“XM”), was $4,766,190, which was recognized during the year ended December 31, 2008.

As a result of the acquisition of Automatic, we recorded additional goodwill of $81,475 during the year ended December 31, 2017.