Goodwill - Schedule of Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance	$ 7,907	$ 2,795	$ 2,795
Impairment charges	(541)	(453)	(2,254)
Acquisition			7,366
Ending balance	7,366		7,907
Glowpoint
Goodwill [Roll Forward]
Beginning balance	541	2,795	2,795
Impairment charges	(541)	(453)	(2,254)
Acquisition			0
Ending balance	0		541
Oblong Industries
Goodwill [Roll Forward]
Beginning balance	7,366	$ 0	0
Impairment charges	0		0
Acquisition			7,366
Ending balance	$ 7,366		$ 7,366

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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