Segment Reporting (Details) $ in Thousands		3 Months Ended						9 Months Ended
	Oct. 01, 2019 segment	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	1							2
Revenue		$ 3,266			$ 2,370			$ 11,410	$ 7,403
Cost of revenues		1,612			1,582			5,684	4,901
Gross profit		$ 1,654			788			$ 5,726	2,502
Gross profit %		51.00%						50.00%
Total operating expenses		$ 3,644			1,428			$ 14,002	4,614
Loss from operations		(1,990)			(640)			(8,276)	(2,112)
Interest and other expense, net		95			0			322	1
Net loss		(2,085)	$ (3,385)	$ (3,129)	(640)	$ (875)	$ (598)	(8,598)	(2,113)
Glowpoint
Segment Reporting Information [Line Items]
Revenue		1,324			2,370			4,741	7,403
Cost of revenues		893						2,948
Gross profit		$ 431						$ 1,793
Gross profit %		33.00%						38.00%
Total operating expenses		$ 1,187						$ 3,398
Loss from operations		(756)						(1,605)
Interest and other expense, net		5						12
Net loss		(761)						(1,617)
Oblong Industries
Segment Reporting Information [Line Items]
Revenue		1,942			$ 0			6,669	$ 0
Cost of revenues		719						2,736
Gross profit		$ 1,223						$ 3,933
Gross profit %		63.00%						59.00%
Total operating expenses		$ 1,477						$ 7,545
Loss from operations		(254)						(3,612)
Interest and other expense, net		90						310
Net loss		(344)						(3,922)
Allocated operating expenses
Segment Reporting Information [Line Items]
Total operating expenses		2,664						10,943
Allocated operating expenses | Glowpoint
Segment Reporting Information [Line Items]
Total operating expenses		1,187						3,398
Allocated operating expenses | Oblong Industries
Segment Reporting Information [Line Items]
Total operating expenses		1,477						7,545
Unallocated operating expenses
Segment Reporting Information [Line Items]
Total operating expenses		$ 980						3,059
Unallocated operating expenses | Glowpoint
Segment Reporting Information [Line Items]
Total operating expenses
Unallocated operating expenses | Oblong Industries
Segment Reporting Information [Line Items]
Total operating expenses