Quarterly report pursuant to Section 13 or 15(d)

Equity and Mezzanine Equity - Additional Information (Details)

v3.20.1
Equity and Mezzanine Equity - Additional Information (Details)
3 Months Ended
Jan. 01, 2019
Mar. 31, 2020
USD ($)
quarter
holder
$ / shares
shares
Mar. 31, 2019
USD ($)
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Jun. 15, 2016
shares
Jun. 04, 2015
shares
Equity [Line Items]            
Convertible preferred stock, terms of conversion   P20D        
Preferred stock, redemption price (in usd per share) | $ / shares   $ 25.00        
Arrears | $   $ 20,470,000        
Series A Preferred            
Equity [Line Items]            
Preferred stock, shares outstanding (in shares)   562   562    
Preferred stock, shares authorized (in shares)   4,500   4,500    
Preferred stock, liquidation price per share (in dollars per share) | $ / shares   $ 1,000   $ 1,000    
Preferred stock, aggregate liquidation preference | $   $ 562,000   $ 562,000    
Preferred stock shares issued (in shares)   562   562    
Preferred stock, per share amounts of preferred dividends in arrears (in usd per share) | $ / shares   $ 135.00        
Arrears | $   $ 13,000 $ 13,000      
Series B Convertible Preferred Stock            
Equity [Line Items]            
Preferred stock, shares authorized (in shares)   5,000,000   5,000,000    
Preferred stock, liquidation price per share (in dollars per share) | $ / shares   $ 25.00   $ 25.00    
Preferred stock, aggregate liquidation preference | $   $ 46,900,000.00   $ 46,900,000.00    
Preferred stock, dividend rate (as a percent)   9.00%        
Preferred stock shares issued (in shares)   1,875,748   1,875,748    
Preferred stock adjusted conversion (in usd per share) | $ / shares   $ 58        
Preferred stock, redemption price (in usd per share) | $ / shares   $ 40.00        
Redeemable Preferred Stock            
Equity [Line Items]            
Preferred stock, shares outstanding (in shares)   562        
Series D Preferred Stock            
Equity [Line Items]            
Preferred stock, shares outstanding (in shares)   3,600,636        
Preferred stock, shares authorized (in shares)   4,000,000        
Preferred stock, liquidation price per share (in dollars per share) | $ / shares   $ 25.00        
Preferred stock, aggregate liquidation preference | $   $ 104,080,000.00   $ 101,660,000.00    
Preferred stock, dividend rate (as a percent) 10.75% 8.75%        
Preferred stock shares issued (in shares)   3,600,636        
Preferred stock, initial liquidation preference (in usd per share) | $ / shares   $ 2.1875        
Preferred stock, dividend over initial rate (as a percent)   2.00%        
Convertible preferred stock conversion price (in usd per share) | $ / shares   $ 16.96        
Number of business days to increase dividend rate after failure to pay any dividend   3        
Preferred stock, liquidation preference per share per annum (in usd per share) | $ / shares   $ 0.50        
Number of quarters Series D Preferred in arrears before Board of Directors increase | quarter   6        
Increase in number of directors after triggering event | holder   2        
Percentage of Series D Preferred required to request election of new directors   20.00%        
Common Stock | 2015 Long-Term Incentive Plan            
Equity [Line Items]            
Maximum number of shares authorized under Share Incentive Plan (in shares)           125,000
Shares available for issuance under Share Incentive Plan (in shares)   41,104        
Shares issued in period (in shares)   0 0      
Common Stock | 2016 Long-Term Incentive Plan            
Equity [Line Items]            
Maximum number of shares authorized under Share Incentive Plan (in shares)         625,000  
Shares available for issuance under Share Incentive Plan (in shares)   132,707        
Series B Preferred Stock            
Equity [Line Items]            
Preferred stock, shares outstanding (in shares)   1,875,748   1,875,748    
Preferred stock, shares authorized (in shares)   5,000,000   5,000,000    
Preferred stock, aggregate liquidation preference | $   $ 46,900,000   $ 46,900,000    
Preferred stock shares issued (in shares)   1,875,748   1,875,748    
Preferred stock, per share amounts of preferred dividends in arrears (in usd per share) | $ / shares   $ 3.36        
Arrears | $   $ 1,055,000 $ 1,055,000      
Series D Preferred            
Equity [Line Items]            
Preferred stock, shares outstanding (in shares)   3,600,636   3,600,636    
Preferred stock, per share amounts of preferred dividends in arrears (in usd per share) | $ / shares   $ 3.91        
Arrears | $   $ 2,419,000 $ 2,419,000      
Equity Distribution Agreement | Series A Preferred | Preferred Stock            
Equity [Line Items]            
Preferred stock, dividend rate (as a percent)   9.00%        
Conversion price percentage   103.00%        
Maximum | Series D Preferred Stock            
Equity [Line Items]            
Preferred stock, dividend rate (as a percent)   14.00%