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Long-term Debt (Details)
3 Months Ended 6 Months Ended 9 Months Ended
Jul. 10, 2017
May 01, 2017
$ / shares
shares
Apr. 01, 2017
USD ($)
$ / shares
Dec. 14, 2016
USD ($)
$ / shares
Aug. 22, 2016
USD ($)
election
$ / shares
May 10, 2016
USD ($)
$ / shares
shares
Dec. 31, 2017
USD ($)
shares
Nov. 09, 2017
shares
Sep. 30, 2017
USD ($)
$ / shares
shares
Aug. 07, 2017
Dec. 31, 2016
USD ($)
$ / shares
shares
Jul. 29, 2016
$ / shares
Jun. 28, 2016
$ / shares
May 08, 2013
$ / shares
Debt Instrument [Line Items]                            
Exercise price (usd per share) | $ / shares           $ 30.20     $ 79.40   $ 79.40 $ 8.60 $ 8.60 $ 49.40
Debt instrument, covenant, compensating cash balance                 $ 12,000,000          
Common stock, shares outstanding | shares                 41,815,975   15,190,473      
Outstanding principle                 $ 11,971,702   $ 17,621,702      
Current portion of long-term debt                 12,170,059   16,397,030      
Unamortized discount and debt issuance costs                 198,357   $ 1,224,672      
Principle redeemed                 $ 5,650,000          
Shares issued for debt, shares | shares                 7,806,708          
Secured Debt                            
Debt Instrument [Line Items]                            
Redemption limit on any given day, percentage of daily dollar trading volume                   15.00%        
Securities Purchase Agreement | Secured Debt                            
Debt Instrument [Line Items]                            
Principle amount of debt           $ 25,530,000                
Fixed coupon rate           6.375%                
Number of shares availabe from warrants | shares           100,000                
Exercise price (usd per share) | $ / shares           $ 0.0001                
Proceeds from issuance of debt and warrants           $ 23,400,000                
Debt principal that could be redeemed           $ 1,100,000                
Delivery discount percentage           7.50%                
Duration of average market price used for warrant exercise price           3 days                
Discount to the prior trading day’s volume weighted average price           7.50%                
Minimum price condition (per share) | $ / shares           $ 15.00                
Debt instrument, covenant, compensating cash balance           $ 24,000,000                
Percentage of VWAPs           92.50%                
Amendment Agreement | Secured Debt                            
Debt Instrument [Line Items]                            
Fixed coupon rate         9.00%                  
Debt principal that could be redeemed         $ 1,500,000                  
Minimum price condition (per share) | $ / shares         $ 4.00                  
Final payment of interest         $ 765,900                  
Maximum prepayment of principle if demanded         $ 18,500,000                  
Premium on outstanding prepayment amount         10.00%                  
Common stock trading price threshold for debt redemption | $ / shares         $ 8.00                  
Debt principal that could be redeemed based on common stock price         $ 2,200,000                  
Number of elections company can make to redeem debt in year | election         3                  
Debt principal that could be redeemed based on company's elections         $ 2,500,000                  
Price per share that holder can convert outstanding debt balance | $ / shares         $ 12.00                  
Debt instrument, covenant, compensating cash balance         $ 18,500,000                  
First Waiver | Secured Debt                            
Debt Instrument [Line Items]                            
Minimum price condition (per share) | $ / shares     $ 0.30 $ 1.00                    
Debt instrument, covenant, compensating cash balance       $ 18,500,000                    
Cash in excess of debenture     $ 10,000,000 10,000,000                    
Redemption payments       $ 1,500,000                    
Daily closing share price appreciation       25.00%                    
2017 Amendment Agreement | Secured Debt                            
Debt Instrument [Line Items]                            
Minimum price condition (per share) | $ / shares   $ 0.35                        
Number of convertible shares | shares   45,000,000                        
July 2017 Amendment Agreement | Secured Debt                            
Debt Instrument [Line Items]                            
Delivery discount percentage 20.00%                          
Percentage of VWAPs 80.00%                          
Number of days average for exercise price 20 days                          
Percentage of prior day VMAP 115.00%                          
Series A Warrant | Common Stock | Securities Purchase Agreement | Secured Debt                            
Debt Instrument [Line Items]                            
Exercise price (usd per share) | $ / shares           $ 30.20                
Series A Warrant | Common Stock | Amendment Agreement | Secured Debt                            
Debt Instrument [Line Items]                            
Exercise price (usd per share) | $ / shares         $ 8.60                  
Scenario, Forecast                            
Debt Instrument [Line Items]                            
Principle redeemed             $ 1,150,000              
Shares issued for debt, shares | shares             3,285,711              
Subsequent Event | 2017 Amendment Agreement | Secured Debt                            
Debt Instrument [Line Items]                            
Shares issued for debt, shares | shares               8,102,082