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Liquidity and Capital Resources (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Liquidity And Capital Resources [Abstract]    
Working capital deficit $ 3.2 $ 2.8
Net loss 1.8  
Consumed cash in operating activities 0.3  
Proceeds from issuance of common stock 4.9  
Extinguishment of debt 4.6  
Cash $ 3.8  
Liquidation period 12 months