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Stock-based Payments and Director Fees - Schedule of Management Fees and Director Fees (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares (in shares) 5,200 61,234 8,668 126,299
Amount of expense recognized $ 40 $ 864 $ 80 $ 1,630
Management fees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares (in shares) 0 58,398 0 120,699
Amount of expense recognized $ 0 $ 824 $ 0 $ 1,552
Independent director fees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares (in shares) 5,200 2,836 8,668 5,600
Amount of expense recognized $ 40 $ 40 $ 80 $ 78