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Preferred Stock (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Feb. 12, 2016
Mar. 31, 2020
Dec. 31, 2019
Preferred shares authorized   100,000 100,000
Preferred shares, par value   $ 0.01 $ 0.01
Number of shares issued, value   $ (1)  
Liquidation preference   $ 3,328 $ 3,228
Acquisition percentage description   Concurrent with entry into the Acquisition Agreement and the Series A Purchase Agreement, the Company and MEM entered into an Investor Rights Agreement, which provides MEM rights to certain information and Board observer rights. MEM has agreed that it, along with its affiliates, will not acquire more than 16.86% of the Company's issued and outstanding shares of common stock.  
Series P Preferred Stock [Member]      
Preferred shares authorized   50,000  
Series A Convertible Preferred Stock [Member]      
Liquidation preference per share $ 40    
Liquidation preference $ 2,000    
Preferred stock, dividend rate 12.25%    
Number of shares converted 1.33    
Preferred stock issued upon conversion 66,667    
Number of common Stock issued upon conversion   79,334 79,334
Series A Convertible Preferred Stock [Member] | Mt. Emmons Mining Company [Member]      
Number of stock shares issued 50,000    
Number of shares issued, value $ 2,000