Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details 1)

v3.10.0.1
Summary of Significant Accounting Policies (Details 1) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]    
Liabilities:    
Current derivative features related to convertible debentures
Current derivative features related to warrant derivatives
Long-term derivative features related to convertible debentures  
Long-term derivative features related to preferred stock
Fair value of Series M preferred stock  
Total liabilities at fair value
Significant Other Observable Inputs (Level 2) [Member]    
Liabilities:    
Current derivative features related to convertible debentures
Current derivative features related to warrant derivatives
Long-term derivative features related to convertible debentures  
Long-term derivative features related to preferred stock
Fair value of Series M preferred stock  
Total liabilities at fair value
Significant Unobservable Inputs (Level 3) [Member]    
Liabilities:    
Current derivative features related to convertible debentures 2,001 3,145
Current derivative features related to warrant derivatives 143 234
Long-term derivative features related to convertible debentures   661
Long-term derivative features related to preferred stock 17,131 15,990
Fair value of Series M preferred stock   3,021
Total liabilities at fair value $ 19,275 $ 23,051