Goodwill	6 Months Ended
Jun. 30, 2018
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. ASC 350, Intangibles - Goodwill and Other, 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. ASC 350 also states that a reporting unit with a zero or negative carrying amount is not required to perform a qualitative assessment. The carrying amount recorded for our one reporting unit and goodwill was $(1,370,568) and $2,286,582, respectively, as of June 30, 2018. As of June 30, 2018, there were no indicators of impairment, and no impairment losses were recorded for goodwill during the three and six months ended June 30, 2018 and 2017. As of June 30, 2018, 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.

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. ASC 350, Intangibles - Goodwill and Other, 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. ASC 350 also states that a reporting unit with a zero or negative carrying amount is not required to perform a qualitative assessment. The carrying amount recorded for our one reporting unit and goodwill was $(1,370,568) and $2,286,582, respectively, as of June 30, 2018.

As of June 30, 2018, there were no indicators of impairment, and no impairment losses were recorded for goodwill during the three and six months ended June 30, 2018 and 2017. As of June 30, 2018, 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.