Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Intangible assets, gross	$ 18,657	$ 5,877
Accumulated amortization	(6,085)	(5,378)
Total	12,572	499
Glowpoint
Business Acquisition [Line Items]
Intangible assets, gross	5,877	5,877
Accumulated amortization	(5,505)	(5,378)
Total	372	499
Glowpoint | Customer/Distributer relationships
Business Acquisition [Line Items]
Intangible assets, gross	4,335	4,335
Accumulated amortization	(4,335)	(4,335)
Total	0	0
Glowpoint | Affiliate network
Business Acquisition [Line Items]
Intangible assets, gross	994	994
Accumulated amortization	(666)	(597)
Total	$ 328	397
Estimated Useful Life	12 years
Glowpoint | Trademarks
Business Acquisition [Line Items]
Intangible assets, gross	$ 548	548
Accumulated amortization	(504)	(446)
Total	$ 44	102
Estimated Useful Life	8 years
Oblong Industries
Business Acquisition [Line Items]
Intangible assets, gross	$ 12,780	0
Accumulated amortization	(580)	0
Total	12,200	0
Oblong Industries | Customer/Distributer relationships
Business Acquisition [Line Items]
Intangible assets, gross	310	0
Accumulated amortization	(16)	0
Total	$ 294	0
Estimated Useful Life	5 years
Oblong Industries | Developed technology
Business Acquisition [Line Items]
Intangible assets, gross	$ 10,060	0
Accumulated amortization	(504)	0
Total	$ 9,556	0
Estimated Useful Life	5 years
Oblong Industries | Trade names
Business Acquisition [Line Items]
Intangible assets, gross	$ 2,410	0
Accumulated amortization	(60)	0
Total	$ 2,350	$ 0
Estimated Useful Life	10 years