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Stock-Based Compensation - Schedule of Stock-based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Total $ 24 $ 47 $ 55 $ 92
Stock Options [Member]        
Total 23 41 53 80
Restricted Stock Awards [Member]        
Total $ 1 $ 6 $ 2 $ 12