Segment Reporting - Disaggregation of Revenue (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Disaggregation of Revenue [Line Items]
Foreign revenue	0.01
Total revenue	$ 15,333	$ 12,827
Revenue
Disaggregation of Revenue [Line Items]
Percentage of revenue	100.00%	100.00%
Oblong (formerly Glowpoint)
Disaggregation of Revenue [Line Items]
Total revenue	$ 6,227	$ 9,660
Oblong (formerly Glowpoint) \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of revenue	40.60%	75.30%
Oblong (formerly Glowpoint) \| Assets
Disaggregation of Revenue [Line Items]
Percentage of revenue	100.00%
Oblong (formerly Glowpoint) \| Video collaboration services
Disaggregation of Revenue [Line Items]
Total revenue	$ 2,413	$ 5,566
Oblong (formerly Glowpoint) \| Video collaboration services \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of revenue	15.70%	43.40%
Oblong (formerly Glowpoint) \| Network services
Disaggregation of Revenue [Line Items]
Total revenue	$ 3,611	$ 3,860
Oblong (formerly Glowpoint) \| Network services \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of revenue	23.60%	30.10%
Oblong (formerly Glowpoint) \| Professional and other services
Disaggregation of Revenue [Line Items]
Total revenue	$ 203	$ 234
Oblong (formerly Glowpoint) \| Professional and other services \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of revenue	1.30%	1.80%
Oblong Industries
Disaggregation of Revenue [Line Items]
Total revenue	$ 9,106	$ 3,167
Oblong Industries \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of revenue	59.40%	24.70%
Oblong Industries \| Video collaboration services
Disaggregation of Revenue [Line Items]
Total revenue	$ 6,873	$ 2,180
Oblong Industries \| Video collaboration services \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of revenue	44.80%	17.00%
Oblong Industries \| Professional and other services
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,033	$ 709
Oblong Industries \| Professional and other services \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of revenue	6.70%	5.50%
Oblong Industries \| Licensing
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,200	$ 278
Oblong Industries \| Licensing \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of revenue	7.80%	2.20%
Domestic
Disaggregation of Revenue [Line Items]
Total revenue	$ 10,288	$ 9,096
Domestic \| Oblong Industries \| Assets
Disaggregation of Revenue [Line Items]
Percentage of revenue	80.00%
Foreign
Disaggregation of Revenue [Line Items]
Total revenue	$ 5,045	$ 3,731
Foreign \| Oblong Industries \| Assets
Disaggregation of Revenue [Line Items]
Percentage of revenue	20.00%

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