Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v3.10.0.1
Related Party Transactions (Details)
9 Months Ended
Sep. 30, 2018
USD ($)
shares
Related Party Transaction [Line Items]  
Principal Amount of Notes $ 20,000
Number of Shares Underlying Warrants | shares 8,000
Aggregate Purchase Price $ 18,000
Chief Financial Officer [Member] | Domonic J. Carney [Member] | 2017 Senior Notes [Member]  
Related Party Transaction [Line Items]  
Principal Amount of Notes $ 87,222 [1]
Number of Shares Underlying Warrants | shares 34,888
Aggregate Purchase Price $ 78,500
Vice President, Business Development [Member] | Mark Owen [Member] | 2017 Senior Notes [Member]  
Related Party Transaction [Line Items]  
Principal Amount of Notes $ 34,722
Number of Shares Underlying Warrants | shares 13,888
Aggregate Purchase Price $ 31,250
Director [Member] | Michael Hammons [Member] | 2017 Senior Notes [Member]  
Related Party Transaction [Line Items]  
Principal Amount of Notes $ 33,334
Number of Shares Underlying Warrants | shares 57,778 [2]
Aggregate Purchase Price $ 30,000
Vice President, Engineering [Member] | Douglas Hamrin [Member] | 2017 Senior Notes [Member]  
Related Party Transaction [Line Items]  
Principal Amount of Notes $ 25,278
Number of Shares Underlying Warrants | shares 10,111
Aggregate Purchase Price $ 22,750
[1] Includes 2017 Senior Notes in the principal amounts of $27,778 and $8,333 purchased in the name of Charles Schwab & Co Inc. FBO Domonic Carney IRA in September and December 2017, respectively, over which Mr. Carney has investment control and which securities he may be deemed to beneficially owned.
[2] Includes warrants to purchase 2,222 shares of common stock at an exercise price of $1.50 issued in January 2018 and warrants to purchase 55,556 shares of common stock at an exercise price of $0.30 per share issued in June 2018.