Annual report pursuant to Section 13 and 15(d)

Debt - Additional Information (Detail)

v3.3.1.900
Debt - Additional Information (Detail)
1 Months Ended 12 Months Ended
Apr. 09, 2015
EUR (€)
Apr. 09, 2015
USD ($)
Dec. 11, 2014
EUR (€)
Tranches
Jun. 30, 2014
EUR (€)
Jun. 30, 2014
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Mar. 31, 2015
EUR (€)
Mar. 31, 2015
USD ($)
Jan. 31, 2015
EUR (€)
Jan. 31, 2015
USD ($)
Dec. 11, 2014
USD ($)
Apr. 14, 2014
EUR (€)
Apr. 14, 2014
USD ($)
Apr. 03, 2014
EUR (€)
Apr. 03, 2014
USD ($)
Dec. 31, 2013
Debt Instrument [Line Items]                                  
Beneficial conversion feature recognized             $ 2,236,583                    
Tbg [Member]                                  
Debt Instrument [Line Items]                                  
Amount of repayment to TBG outstanding     € 1,050,000                 $ 1,270,000     € 1,200,000 $ 1,340,000  
Principal amount, interest rate                             10.53% 10.53%  
Capital gain tax withheld € 118,688 $ 130,889                              
Number of tranches | Tranches     2                            
Repayment amount of debt               € 931,312 $ 1,027,051                
Debt Instrument, Redemption, Period One [Member] | Tbg [Member]                                  
Debt Instrument [Line Items]                                  
Amount of repayment to TBG outstanding                   € 600,000 $ 726,060            
Debt Instrument, Redemption, Period Two [Member] | Tbg [Member]                                  
Debt Instrument [Line Items]                                  
Amount of repayment to TBG outstanding               € 450,000 $ 544,545                
Bridge Loan [Member]                                  
Debt Instrument [Line Items]                                  
Principal or interest payments           $ 0                      
Bridge Loan [Member] | Unsecured Debt Including Accrued Interest [Member]                                  
Debt Instrument [Line Items]                                  
Interest rate       12.00% 12.00%                       12.00%
Loan maturity date       Dec. 31, 2015 Dec. 31, 2015 Dec. 31, 2015                      
Outstanding principal on unsecured convertible stockholder loan           $ 0 0                    
Accrued interest           0 0                    
Aggregate borrowing capacity                         € 2,000,000 $ 2,420,200      
Interest expense           0 326,429                    
Bridge Loan [Member] | Unsecured Debt Including Accrued Interest [Member] | Tranche A [Member]                                  
Debt Instrument [Line Items]                                  
Aggregate borrowing capacity                         1,500,000 1,815,150      
Borrowed amount       € 1,000,000 $ 1,210,100                        
Debt instrument, percentage of debt redeemed       67.00% 67.00%                        
Bridge Loan [Member] | Unsecured Debt Including Accrued Interest [Member] | Tranche B [Member]                                  
Debt Instrument [Line Items]                                  
Aggregate borrowing capacity                         € 500,000 $ 605,050      
Bridge Loan [Member] | Unsecured Debt Including Accrued Interest [Member] | After Maturity Period [Member]                                  
Debt Instrument [Line Items]                                  
Interest rate       18.00% 18.00%                       18.00%
2014 Bridge Loan [Member] | Unsecured Debt Including Accrued Interest [Member]                                  
Debt Instrument [Line Items]                                  
Outstanding principal on unsecured convertible stockholder loan           $ 0 $ 0