Segment Reporting - Concentration Percentage (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue
Concentration Risk [Line Items]
Concentration risk, percentage	100.00%	100.00%
Glowpoint | Revenue
Concentration Risk [Line Items]
Concentration risk, percentage	75.00%	100.00%
Oblong Industries | Revenue
Concentration Risk [Line Items]
Concentration risk, percentage	25.00%	0.00%
Customer A | Glowpoint | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage	12.00%	54.00%
Customer A | Glowpoint | Revenue
Concentration Risk [Line Items]
Concentration risk, percentage	20.00%	25.00%
Customer B | Glowpoint | Revenue
Concentration Risk [Line Items]
Concentration risk, percentage	18.00%	21.00%
Customer C | Oblong Industries | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage	18.00%
Customer D | Oblong Industries | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage	16.00%