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Subsequent Events (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Feb. 13, 2019
Jan. 31, 2019
Feb. 21, 2019
Series D Preferred Stock [Member]      
Preferred stock conversion basis   Each share of Series D Preferred Stock is convertible into 5,000 shares of the Company's common stock.  
Series C Preferred Stock [Member]      
Preferred stock conversion basis   Each share of Series C Preferred Stock is convertible into 25 shares of the Company's common stock upon payment of a conversion premium of $4.20 per share of common stock.  
Redemption price per shares   $ 0.10  
Subsequent Event [Member] | Exchange Agreement [Member] | Series D Preferred Stock [Member]      
Preferred stock, par value $ 1.00    
Preferred stock conversion basis Stated conversion rate of 5,000 common shares for 1 Series D Preferred Stock    
Conversion of shares converted 2,782    
Subsequent Event [Member] | Exchange Agreement [Member] | Common Stock [Member]      
Conversion of shares converted 13,910,000    
Subsequent Event [Member] | Exchange Agreement [Member] | Series C Preferred Stock [Member]      
Preferred stock, par value     $ 1.00
Redemption price per shares     $ 0.40
Redemption shares     62,048
Redemption amount     $ 24,819