Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details)

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Stockholders' Equity (Details) - USD ($)
1 Months Ended 12 Months Ended
Oct. 15, 2018
Oct. 10, 2018
Sep. 11, 2017
Aug. 05, 2016
Oct. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Stock Issued During Period, Value, New Issues             $ 16,916,000  
preferred stock accrued dividends           $ 248,000 $ 243,000  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   13,672,173            
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 1.38     $ 1.38      
Preferred Stock Shares Converted           1,523 6,562  
Proceeds from Issuance or Sale of Equity $ 18,600,000         $ 0 $ 12,172,000  
Proceeds from Stock Options Exercised           $ 0 0  
Over-Allotment Option [Member]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   2,428,825            
Issue of warrants to purchase common stock   1,807,826            
Fbr Capital Markets Co [Member]                
Stock Issued During Period, Shares, New Issues           3,500,000    
Sale of Stock, Consideration Received Per Transaction       $ 40,000,000        
Brokerage Commission percentage       3.00%        
Proceeds from Issuance of Common Stock for Exclusive Channel Collaboration Agreement             $ 12,200,000  
Series A Preferred Stock [Member]                
Preferred Stock, Par or Stated Value Per Share           $ 0.001 $ 0.001  
Preferred Stock, Dividend Rate, Percentage     2.00%          
Preferred Stock Conversion Price Per Share     $ 0.54          
Preferred Stock, Redemption Terms     (i) the VWAP (as defined in the Certificate of Designation) for at least 20 trading days in any 30 trading day period is greater than $70.00, subject to adjustment in the case of stock split, stock dividends or the like the Company has the right, after providing notice not less than 6 months prior to the redemption date, to redeem, in whole or in part, on a pro rata basis from all holders thereof based on the number of shares of Series A Preferred Stock then held, the outstanding Series A Preferred Stock, for cash, at a redemption price per share of Series A Preferred Stock of $7,875.00, subject to appropriate adjustment in the event of any stock dividend, stock split, combination or other similar recapitalization with respect to the Series A Convertible Preferred Stock or (ii) the five year anniversary of the issue date, the Company shall have the right to redeem, in whole or in part, on a pro rata basis from all holders thereof based on the number of shares of Series A Convertible Preferred Stock then held, the outstanding Series A Preferred Stock, for cash, at a redemption price per share equal to the Liquidation Value.          
preferred stock accrued dividends           $ 248,000 $ 243,000  
Preferred Stock, Convertible, Conversion Price, Increase     $ 18.90          
Convertible Preferred Stock, Terms of Conversion     (i) a 19.99% blocker provision to comply with NYSE American Listing Rules, (ii) if so elected by the Investor, a 4.99% blocker provision that will prohibit beneficial ownership of more than 4.99% of the outstanding shares of the Company's common stock or voting power at any time, and (iii) applicable regulatory restrictions.          
Preferred Stock, Discount on Shares               $ 6,900,000
Series A Preferred Stock [Member] | Private Placement [Member]                
Stock Issued During Period, Shares, New Issues     120,000          
Preferred Stock, Par or Stated Value Per Share     $ 0.001          
Proceeds from Issuance of Convertible Preferred Stock     $ 12,000,000          
Sale of Stock, Consideration Received Per Transaction     $ 100          
Series B Preferred Stock [Member]                
Stock Issued During Period, Shares, New Issues             15,723  
Preferred Stock, Par or Stated Value Per Share $ 1,000         $ 1,000 $ 1,000  
Preferred Stock Conversion Price Per Share $ 1.15              
Stock Issued During Period, Value, New Issues             $ 641,000  
preferred stock accrued dividends           $ 525,000 11,681,000  
Stock Issued During Period, Value, Issued for Services $ 1,000              
Convertible Preferred Stock, Terms of Conversion         The Company may not effect, and holder will not be entitled to, exercise any Warrants or conversion of the Series B Preferred Stock, which, upon giving effect to such exercise, would cause (i) the aggregate number of shares of common stock beneficially owned by the holder (together with its affiliates) to exceed 4.99% (or, at the election of the holder, 9.99%) of the number of shares of common stock outstanding immediately after giving effect to the exercise, or (ii) the combined voting power of the Company's securities beneficially owned by the holder (together with its affiliates) to exceed 4.99% (or, at the election of the holder, 9.99%) of the combined voting power of all of the Company's securities then outstanding immediately after giving effect to the exercise or conversion, as such percentage ownership is determined in accordance with the terms of the October 2018 Warrants or Series B Preferred Stock. However, any holder may increase or decrease such percentage to any other percentage not in excess of 9.99% upon at least 61 days' prior notice from the holder to the Company. The holders of the Series B Preferred will participate, on an as-if-converted-to-common stock basis, in any dividends to the holders of common stock. Upon a defined Fundamental Transaction, the holders of the Series B Preferred Stock are entitled to the same consideration as are holders of common stock. The Series B Preferred Stock ranks junior to existing Series A preferred stock but on parity with common stock. Liquidation preference is equal to an amount pari passu with the common stock on an as converted basis (i.e., there is no preference to common stock)      
Class of Warrant or Right, Exercise Price of Warrants or Rights         $ 1.38      
Shares Issued, Price Per Share $ 1.15              
Preferred Stock Redemption Discount           9,200,000    
Percentage of issue of the public offering         120.00%      
Preferred Stock, Discount on Shares           $ 525,000 $ 2,500,000  
Conversion of Stock, Shares Converted 13,672,173              
Investment Warrants Expiration Date1         Oct. 15, 2023      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period             0  
Series B Preferred Stock [Member] | Over-Allotment Option [Member]                
Stock Issued During Period, Shares, New Issues   2,428,825            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   2,428,825            
Issue of warrants to purchase common stock   1,807,826            
Series B Preferred Stock [Member] | Warrant [Member]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 13,672,173              
Common Class A [Member]                
Stock Issued During Period, Shares, New Issues 2,520,000              
Common Class B [Member]                
Stock Issued During Period, Shares, New Issues 15,723