Oblong Industries Acquisition - Pro Forma (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Total revenue		$ 25,586
Pro forma net loss		20,196
Oblong Industries
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenue from acquiree		3,167
Net loss from acquiree	$ (3,360)
Total revenue		15,926
Pro forma net loss		15,795
Oblong (formerly Glowpoint)
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Total revenue		9,660
Pro forma net loss		4,401
Incremental amortization for intangible assets | Oblong Industries
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net loss		$ 1,393