Quarterly report pursuant to Section 13 or 15(d)

Capital Stock - Series A Preferred Stock (Details)

v3.21.1
Capital Stock - Series A Preferred Stock (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 17, 2021
$ / shares
Dec. 15, 2020
USD ($)
M
D
$ / shares
shares
Mar. 31, 2021
USD ($)
$ / shares
shares
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
$ / shares
shares
Dec. 15, 2025
$ / shares
Dec. 15, 2024
$ / shares
Dec. 15, 2023
$ / shares
Dec. 15, 2022
$ / shares
Dec. 15, 2021
$ / shares
Sale of stock                    
Preferred stock, shares authorized (in shares) | shares     1,000,000   1,000,000          
Restricted cash | $     $ 2,100              
Restricted cash, current | $     $ 2,142   $ 1,611          
Restricted cash, noncurrent | $         $ 531          
Preferred stock, par value (in dollars per share)     $ 0.05   $ 0.05          
Stock issuance costs | $     $ 264 $ 166            
8.625% Series A Cumulative, Perpetual Preferred Stock                    
Sale of stock                    
Preferred stock, shares issued (in shares) | shares     984,000   984,000          
Preferred stock, dividend rate (as a percent)   8.625% 8.625%   8.625%          
Liquidation preference (in dollars per share)     $ 25.00              
Redemption price (in dollars per share)   $ 25.00                
Redemption price at which company has option to redeem outstanding shares upon the occurrence of a delisting event or change of control event (in dollars per share)   $ 25.00                
Number of days in year over which dividend will be prorated and computed | D   360                
Number of months in year over which dividend will be prorated and compute | M   12                
Number of days in month over which dividend will be prorated and computed | D   30                
Share cap (in shares) | shares   1.46071                
Trading days | D   10                
Preferred stock, par value (in dollars per share)     $ 0.05              
Preferred stock, shares outstanding (in shares) | shares     984,000   984,000          
Forecast | 8.625% Series A Cumulative, Perpetual Preferred Stock                    
Sale of stock                    
Redemption price (in dollars per share)           $ 25.00 $ 25.25 $ 25.50 $ 25.75 $ 26.00
Preferred stock | 8.625% Series A Cumulative, Perpetual Preferred Stock                    
Sale of stock                    
Preferred stock, shares authorized (in shares) | shares   984,000                
Preferred stock, dividend rate (as a percent)   8.625%                
Liquidation preference (in dollars per share)   $ 25.00                
Gross proceeds from issuance of preferred stock | $   $ 24,600                
Cash dividend declared (in dollars per share) $ 0.71875                  
Stock issuance costs | $   2,000                
Net proceeds from issuance of stock | $   $ 22,600                
Preferred stock | 8.625% Series A Cumulative, Perpetual Preferred Stock | Directors                    
Sale of stock                    
Purchase price (in dollars per share)   $ 25.00                
Shares issued (in shares) | shares   200,000                
Gross proceeds from issuance of preferred stock | $   $ 5,000                
Preferred stock | 8.625% Series A Cumulative, Perpetual Preferred Stock | Chief Executive Officer                    
Sale of stock                    
Purchase price (in dollars per share)   $ 25.00                
Shares issued (in shares) | shares   8,000                
Gross proceeds from issuance of preferred stock | $   $ 200