Segment Reporting (Details) $ in Thousands		3 Months Ended	9 Months Ended	12 Months Ended
	Oct. 01, 2019 segment	Dec. 31, 2019 USD ($) segment	Sep. 30, 2019 segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	1	2	1
Revenues				$ 12,827	$ 12,557
Cost of revenues (exclusive of depreciation and amortization)				7,427	7,598
Gross profit				$ 5,400	4,959
Gross profit %				42.00%
Total operating expenses				$ 12,974	11,699
Loss from operations				(7,574)	(6,740)
Interest and other (income) expense, net				187	415
Loss before income taxes				(7,761)	(7,155)
Total assets		$ 34,909		34,909	7,962
Glowpoint
Segment Reporting Information [Line Items]
Revenues				9,660	12,557
Cost of revenues (exclusive of depreciation and amortization)				6,269
Gross profit				$ 3,391
Gross profit %				35.00%
Total operating expenses				$ 6,835
Loss from operations				(3,444)
Interest and other (income) expense, net				0
Loss before income taxes				(3,444)
Total assets		5,942		5,942
Oblong Industries
Segment Reporting Information [Line Items]
Revenues				3,167	0
Cost of revenues (exclusive of depreciation and amortization)				1,158
Gross profit				$ 2,009
Gross profit %				63.00%
Total operating expenses				$ 5,183
Loss from operations				(3,173)
Interest and other (income) expense, net				0
Loss before income taxes				(3,173)
Total assets		$ 28,967		28,967
Allocated operating expenses
Segment Reporting Information [Line Items]
Total operating expenses				12,018
Allocated operating expenses | Glowpoint
Segment Reporting Information [Line Items]
Total operating expenses				6,835
Allocated operating expenses | Oblong Industries
Segment Reporting Information [Line Items]
Total operating expenses				5,183
Unallocated operating expenses
Segment Reporting Information [Line Items]
Total operating expenses				956
Unallocated operating expenses | Glowpoint
Segment Reporting Information [Line Items]
Total operating expenses				0
Unallocated operating expenses | Oblong Industries
Segment Reporting Information [Line Items]
Total operating expenses				0
Domestic
Segment Reporting Information [Line Items]
Revenues				9,096	8,423
Foreign
Segment Reporting Information [Line Items]
Revenues				$ 3,731	$ 4,134