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Debt - Components Of Series C Redeemable Preferred Stock Liability (Details) - Eight Percent Series C Redeemable Preferred Stock - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Series C Redeemable Preferred Stock, stated value $ 17,253 $ 10,533
Unamortized debt discount (4,231) (5,776)
Accretion of redemption premium 904 25
Accrued dividend 576 16
Series C Redeemable Preferred Stock, net $ 14,502 $ 4,798