Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Intangible assets, gross	$ 14,322	$ 14,322
Accumulated amortization	(4,182)	(1,750)
Total	10,140	12,572
Oblong (formerly Glowpoint)
Business Acquisition [Line Items]
Intangible assets, gross	1,542	1,542
Accumulated amortization	(1,283)	(1,170)
Total	259	372
Oblong (formerly Glowpoint) | Affiliate network
Business Acquisition [Line Items]
Intangible assets, gross	994	994
Accumulated amortization	(735)	(666)
Total	$ 259	328
Estimated Useful Life	12 years
Oblong (formerly Glowpoint) | Trademarks
Business Acquisition [Line Items]
Intangible assets, gross	$ 548	548
Accumulated amortization	(548)	(504)
Total	$ 0	44
Estimated Useful Life	8 years
Oblong Industries
Business Acquisition [Line Items]
Intangible assets, gross	$ 12,780	12,780
Accumulated amortization	(2,899)	(580)
Total	9,881	12,200
Oblong Industries | Distributor relationships
Business Acquisition [Line Items]
Intangible assets, gross	310	310
Accumulated amortization	(77)	(16)
Total	$ 233	294
Estimated Useful Life	5 years
Oblong Industries | Developed technology
Business Acquisition [Line Items]
Intangible assets, gross	$ 10,060	10,060
Accumulated amortization	(2,520)	(504)
Total	$ 7,540	9,556
Estimated Useful Life	5 years
Oblong Industries | Trade names
Business Acquisition [Line Items]
Intangible assets, gross	$ 2,410	2,410
Accumulated amortization	(302)	(60)
Total	$ 2,108	$ 2,350
Estimated Useful Life	10 years