Quarterly report pursuant to Section 13 or 15(d)

Net Loss per Share - Additional Information (Details)

v3.20.1
Net Loss per Share - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Net Loss Attributable to Non-controlling Interest $ (26,000) $ (16,000)
Series A Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
preferred stock accrued dividends 62,000 61,000
Series B Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Net Loss Attributable to Non-controlling Interest 0  
Accretion of preferred discount 400,000 400,000
preferred stock accrued dividends $ 404,000 $ 398,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 5,708,696 7,065,217
Equity Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 2,502,012 893,367
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 18,915,851