For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Foreign exchange rate used to remeasure amounts denominated in a currency other than functional currency into functional currency.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Segment Reporting - Disaggregation of Revenue and Total Assets (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Disaggregation of Revenue [Line Items]
Foreign revenue	0.01	0.01	0.01	0.01
Revenue	$ 2,049	$ 2,816	$ 3,967	$ 8,144
Product Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 2,049	$ 2,816	$ 3,967	$ 8,144
Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
Oblong (formerly Glowpoint)
Disaggregation of Revenue [Line Items]
Revenue	$ 1,078	$ 1,373	$ 2,273	$ 3,417
Oblong (formerly Glowpoint) \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 1,078	$ 1,373	$ 2,273	$ 3,417
Oblong (formerly Glowpoint) \| Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	53.00%	49.00%	57.00%	42.00%
Oblong (formerly Glowpoint) \| Video collaboration services \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 230	$ 428	$ 521	$ 1,473
Oblong (formerly Glowpoint) \| Video collaboration services \| Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	11.00%	15.00%	13.00%	18.00%
Oblong (formerly Glowpoint) \| Network services \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 830	$ 891	$ 1,711	$ 1,816
Oblong (formerly Glowpoint) \| Network services \| Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	41.00%	32.00%	43.00%	22.00%
Oblong (formerly Glowpoint) \| Professional and other services \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 18	$ 54	$ 41	$ 128
Oblong (formerly Glowpoint) \| Professional and other services \| Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	1.00%	2.00%	1.00%	2.00%
Oblong Industries
Disaggregation of Revenue [Line Items]
Revenue	$ 971	$ 1,443	$ 1,694	$ 4,727
Oblong Industries \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 971	$ 1,443	$ 1,694	$ 4,727
Oblong Industries \| Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	47.00%	51.00%	42.71%	58.00%
Oblong Industries \| Video collaboration services \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 942	$ 923	$ 1,635	$ 3,245
Oblong Industries \| Video collaboration services \| Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	46.00%	33.00%	41.00%	40.00%
Oblong Industries \| Professional and other services \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 228	$ 0	$ 898
Oblong Industries \| Professional and other services \| Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	0.00%	8.00%	0.00%	11.00%
Oblong Industries \| Licensing \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 29	$ 292	$ 59	$ 584
Oblong Industries \| Licensing \| Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	1.00%	10.00%	1.00%	7.00%
Domestic
Disaggregation of Revenue [Line Items]
Revenue	$ 1,227	$ 1,854	$ 2,242	$ 5,456
Foreign
Disaggregation of Revenue [Line Items]
Revenue	$ 822	$ 962	$ 1,725	$ 2,688