Quarterly report pursuant to Section 13 or 15(d)

Net Loss per Share - Additional Information (Details)

v3.20.2
Net Loss per Share - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Sep. 30, 2020
Sep. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                
Net Loss Attributable to Non-controlling Interest $ (8,000) $ (16,000) $ (26,000) $ (30,000) $ (27,000) $ (16,000) $ (50,000) $ (73,000)
preferred stock accrued dividends               185,000
Series A Preferred Stock [Member]                
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                
preferred stock accrued dividends 64,000     63,000     189,000 185,000
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 $ 0 $ 0    
Accretion of preferred discount 500,000     100,000     1,300,000 600,000
preferred stock accrued dividends $ 519,000     $ 70,000     $ 1,315,000 $ 585,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 3,605,217     6,641,739     3,605,217 6,641,739
Equity Option [Member]                
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 2,460,325     803,577        
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