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Net Loss per Share - Additional Information (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net Loss Attributable to Non-controlling Interest	$ (16,000)	$ (26,000)	$ (27,000)	$ (16,000)	$ (42,000)	$ (43,000)
Series A Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
preferred stock accrued dividends	63,000		61,000		125,000	122,000
Series B Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net Loss Attributable to Non-controlling Interest	0	$ 0	0	$ 0
Accretion of preferred discount	400,000		100,000		800,000	500,000
preferred stock accrued dividends	$ 392,000		$ 117,000		$ 796,000	$ 515,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	4,804,348		6,802,608		4,804,348	6,802,608
Equity Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,472,362				2,472,362	843,119
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	18,714,999				18,714,999	18,915,851