Segment Reporting - Concentration Percentage (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue
Concentration Risk [Line Items]
Concentration risk percentage	100.00%	100.00%	100.00%	100.00%
Glowpoint | Revenue
Concentration Risk [Line Items]
Concentration risk percentage	49.00%	100.00%	42.00%	100.00%
Oblong Industries | Revenue
Concentration Risk [Line Items]
Concentration risk percentage	51.00%	0.00%	58.00%	0.00%
Customer A | Glowpoint | Revenue
Concentration Risk [Line Items]
Concentration risk percentage	23.00%	22.00%	15.00%	22.00%
Customer A | Glowpoint | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk percentage			32.00%
Customer B | Oblong Industries | Revenue
Concentration Risk [Line Items]
Concentration risk percentage	20.00%	0.00%	21.00%	0.00%
Customer B | Oblong Industries | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk percentage			0.00%	0.00%
Customer C | Glowpoint | Revenue
Concentration Risk [Line Items]
Concentration risk percentage		29.00%		29.00%
Customer C | Glowpoint | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk percentage				46.00%
Customer D | Oblong Industries | Revenue
Concentration Risk [Line Items]
Concentration risk percentage		10.00%		0.00%
Customer D | Oblong Industries | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk percentage				0.00%
Customer E | Oblong Industries | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk percentage			12.00%	0.00%