Goodwill - Schedule of Goodwill (Details) - USD ($)		12 Months Ended
	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance		$ 7,908,000	$ 2,795,000
Acquisition			7,367,000
Impairment		(541,000)	(2,254,000)
Ending balance		7,367,000	7,908,000
Oblong
Goodwill [Roll Forward]
Beginning balance		541,000	2,795,000
Acquisition			0
Impairment	$ (541,000)	(541,000)	(2,254,000)
Ending balance		0	541,000
Oblong Industries
Goodwill [Roll Forward]
Beginning balance		7,367,000	0
Acquisition			7,367,000
Impairment		0	0
Ending balance		$ 7,367,000	$ 7,367,000