Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Assumptions, RF (Details)

v3.6.0.2
Fair Value Measurements - Assumptions, RF (Details)
 12 Months Ended
Dec. 31, 2016
USD ($)
classofstock
$ / shares
shares
Dec. 31, 2015
USD ($)
classofstock
Dec. 31, 2014
USD ($)
Level 3 Valuation      
Expected life     6 years 3 months
Summary of changes in the fair value of the Level 3 valuation for the Warrant Liability and the Investor Rights Obligation      
Number of changes in valuation techniques | classofstock 0 0  
Amount of transfers of assets from level 1 to level 2 $ 0 $ 0  
Amount of transfers of assets from level 2 to level 1 $ 0 $ 0  
Common stock warrants      
Level 3 Valuation      
Number of shares available under warrant | shares 40,000    
Minimum      
Level 3 Valuation      
Expected life 5 years 5 years 5 years
Maximum      
Level 3 Valuation      
Expected life 6 years 3 months 6 years 3 months  
Level 3      
Summary of changes in the fair value of the Level 3 valuation for the Warrant Liability and the Investor Rights Obligation      
Beginning balance $ 78,177 $ 1,181,684  
Change in fair value (72,625) (201,049)  
Recording of obligation at fair value   209,542  
Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Liability Expirations   (1,112,000)  
Ending balance $ 5,552 78,177 $ 1,181,684
Warrant liability | Level 3      
Level 3 Valuation      
Volatility 100.00%    
Risk free interest rate 1.65%    
Strike price | $ / shares $ (8.40)    
Share price (in dollars per share) | $ / shares $ (0.88)    
Expected life 3 years 9 months 8 days    
Summary of changes in the fair value of the Level 3 valuation for the Warrant Liability and the Investor Rights Obligation      
Beginning balance $ 27,606 69,684  
Change in fair value (22,105) (42,078)  
Ending balance   27,606 69,684
Investor rights obligation | Level 3      
Summary of changes in the fair value of the Level 3 valuation for the Warrant Liability and the Investor Rights Obligation      
Recording of obligation at fair value   0  
Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Liability Expirations   (1,112,000)  
Equity Unit Purchase Option | Other Nonoperating Income (Expense)      
Summary of changes in the fair value of the Level 3 valuation for the Warrant Liability and the Investor Rights Obligation      
Change in fair value $ 50,520    
Equity Unit Purchase Option | Level 3      
Level 3 Valuation      
Strike price | $ / shares $ (7.48)    
Share price (in dollars per share) | $ / shares $ (0.88)    
Summary of changes in the fair value of the Level 3 valuation for the Warrant Liability and the Investor Rights Obligation      
Beginning balance $ 50,571 0  
Issuance of liability   209,542  
Change in fair value (50,520) (158,971)  
Ending balance $ 51 50,571 0
Equity Unit Purchase Option | Level 3 | Class A Warrant      
Level 3 Valuation      
Strike price | $ / shares $ (5.23)    
Equity Unit Purchase Option | Level 3 | Class B Warrant      
Level 3 Valuation      
Strike price | $ / shares $ (4.49)    
Equity Unit Purchase Option | Level 3 | Minimum      
Level 3 Valuation      
Volatility 65.00%    
Risk free interest rate 0.44%    
Equity Unit Purchase Option | Level 3 | Maximum      
Level 3 Valuation      
Volatility 90.00%    
Risk free interest rate 1.64%    
Recurring basis | Warrant liability | Level 3      
Level 3 Valuation      
Liabilities and obligations $ 5,501 27,606  
Summary of changes in the fair value of the Level 3 valuation for the Warrant Liability and the Investor Rights Obligation      
Beginning balance 27,606    
Ending balance 5,501 27,606  
Recurring basis | Investor rights obligation | Level 3      
Level 3 Valuation      
Liabilities and obligations 0 0 $ 1,112,000
Recurring basis | Equity Unit Purchase Option | Level 3      
Level 3 Valuation      
Liabilities and obligations $ 51 $ 50,571