Quarterly report pursuant to Section 13 or 15(d)

Equity and Mezzanine Equity - Antidilutive Securities Excluded From Calculation of Earnings Per Share (Details)

v3.19.1
Equity and Mezzanine Equity - Antidilutive Securities Excluded From Calculation of Earnings Per Share (Details) - shares
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Series B Preferred Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Preferred stock, shares outstanding (in shares) 1,875,748 1,875,748
Potential Dilutive Shares (in shares) 1,172,343  
Series D Preferred Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Preferred stock, shares outstanding (in shares) 3,600,636  
Potential Dilutive Shares (in shares) 5,307,541  
Warrants to purchase Common Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potential Dilutive Shares (in shares) 248,325  
Common units    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Outstanding units (in shares) 235,032  
Potential Dilutive Shares (in shares) 235,032