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Shareholders' Equity - Narrative (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Oct. 15, 2020
USD ($)
$ / shares
Sep. 17, 2020
$ / shares
shares
Aug. 20, 2020
USD ($)
May 21, 2020
USD ($)
May 13, 2020
trustee
$ / shares
shares
Feb. 20, 2020
USD ($)
Sep. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Sep. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Sep. 30, 2020
USD ($)
Subsequent Event [Line Items]                        
Number of trustees | trustee         5              
Grants awarded (in shares) | shares         3,000              
Grants awarded (in dollars per share)         $ 1.92              
Distributions | $     $ 83 $ 82   $ 1,813 $ 83 $ 1,895 $ 1,802 $ 702 $ 350 $ 1,978
Subsequent Event                        
Subsequent Event [Line Items]                        
Distributions declared (in dollars per share) $ 0.01                      
Distributions | $ $ 83                      
Fully Vested Common Shares                        
Subsequent Event [Line Items]                        
Grants awarded (in shares) | shares   56,600                    
Grants awarded (in dollars per share)   $ 2.92