v3.19.3
Note 7 - Term Loans and Convertible Promissory Notes (Details Textual)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
May 03, 2019
shares
Sep. 27, 2018
USD ($)
Mar. 29, 2018
USD ($)
Nov. 01, 2016
Mar. 31, 2016
USD ($)
Jan. 29, 2016
USD ($)
Nov. 25, 2015
Nov. 24, 2015
USD ($)
shares
Aug. 31, 2019
USD ($)
May 31, 2019
USD ($)
shares
Jan. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Oct. 31, 2018
USD ($)
$ / shares
Sep. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
Jan. 31, 2017
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2019
USD ($)
Jul. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
Jan. 31, 2016
shares
Nov. 30, 2015
shares
Loans Payable, Total                       $ 4,200,000               $ 4,200,000            
Restricted Cash, Total                           $ 55,000     $ 253,000 $ 253,000 $ 55,000              
Interest Expense, Total                                   2,864,000 767,000 992,000 $ 515,000          
Gain (Loss) on Extinguishment of Debt, Total                                   11,000                
Proceeds from Notes Payable, Total                   $ 3,200,000                                
Debt Conversion, Converted Instrument, Shares Issued | shares                   367,041                                
Debt Instrument, Convertible, Beneficial Conversion Feature                                 2,100,000                  
Embedded Derivative, Fair Value of Embedded Derivative Liability                                 $ 0 $ 0                
Conversion of Notes into Series B Convertible Preferred Stock [Member] | Alliqua Biomedical, Inc. [Member]                                                    
Debt Conversion, Converted Instrument, Shares Issued | shares 367,041                                                  
Domain [Member]                                                    
Debt Instrument, Face Amount                 $ 300,000                           $ 600,000      
Modified March 2019 and Modified December 2018 Notes [Member]                                                    
Debt Instrument, Convertible, Preferred Stock Proceeds Trigger                                       5,000,000            
Debt Instrument, Convertible, Common Stock Proceeds Trigger                                       $ 5,000,000            
Debt Instrument, Convertible, Conversion Ratio                                       80            
Debt Instrument, Conversion to Cash in Case of Change in Control                       200.00%         200.00% 200.00%   200.00%            
Financing Threshold, Proceeds to Convert Notes to Equity                                       $ 5,000,000            
Modified March 2018, September 2018, December 2018, and March 2019 Notes [Member]                                                    
Probability of Qualified Financing Occurring                       0.00%               0.00%            
Amortization of Debt Discount (Premium)                                       $ 223,000 0          
Probability of Change in Control Occurring                       0.00%               0.00%            
Modified March 2018 and Modified September 2018 Notes [Member]                                                    
Debt Instrument, Convertible, Conversion Ratio                                       80            
Debt Instrument, Conversion to Cash in Case of Change in Control                       200.00%               200.00%            
Gain (Loss) on Extinguishment of Debt, Total                         $ 11,000                          
Financing Threshold, Proceeds to Convert Notes to Equity                                       $ 5,000,000            
Debt Instrument, Conversion to Cash in Case of Change in Control, Premium                       100.00%               100.00%            
Voting Rights Transferred to be Considered a Change in Control                       50.00%               50.00%            
Embedded Derivative, Fair Value of Embedded Derivative Liability                       $ 0               $ 0   $ 0        
Amortization of Debt Discount (Premium)                         641,000                          
Release of Derivative Liabilities                         $ 653,000                          
Modified March 2018 and Modified September 2018 Notes [Member] | Convert Notes and Accrued Interest to Series B Preferred Stock [Member]                                                    
Debt Instrument, Convertible, Conversion Price | $ / shares                         $ 0.3133                          
Convertible Promissory Note Issued on March 29, 2019 [Member]                                                    
Probability of Qualified Financing Occurring     30.00%                                              
Embedded Derivative, Fair Value of Embedded Derivative Liability     $ 496,000                                              
Debt Instrument, Convertible, Remaining Discount Amortization Period     1 year                                              
Debt Instrument, Unamortized Discount, Current     $ 496,000                                              
Probability of Change in Control Occurring     15.00%                                              
Convertible Promissory Note Issued September 27, 2018 [Member]                                                    
Probability of Qualified Financing Occurring   40.00%                                                
Embedded Derivative, Fair Value of Embedded Derivative Liability   $ 368,000                                                
Debt Instrument, Convertible, Remaining Discount Amortization Period   1 year                                                
Debt Instrument, Unamortized Discount, Current   $ 369,000                                                
Probability of Change in Control Occurring   0.00%                                                
Warrant to Purchase Series A Convertible Preferred Stock Under Oxford Loan Agreement [Member]                                                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares               11,829                                 131,810 197,715
Oxford Finance, LLC [Member]                                                    
Debt Instrument, Face Amount               $ 10,000,000                                    
Oxford Finance, LLC [Member] | Term Loan A [Member]                                                    
Debt Instrument, Face Amount               3,000,000                                    
Proceeds from Issuance of Debt               3,000,000                                    
Debt Issuance Costs, Gross               141,000                                    
Loans Payable, Total                       2,300,000         $ 1,400,000 $ 1,400,000   2,300,000            
Debt Issuance Costs, Net, Total               141,000                                    
Long-term Debt, Total                       2,300,000               2,300,000 2,800,000          
Oxford Finance, LLC [Member] | Term Loan B [Member]                                                    
Debt Instrument, Face Amount               2,000,000                                    
Proceeds from Issuance of Debt           $ 2,000,000                                        
Loans Payable, Total                       1,500,000         $ 1,000,000 1,000,000   1,500,000            
Debt Issuance Costs, Net, Total               $ 3,000                                    
Long-term Debt, Total                       $ 1,500,000               1,500,000 $ 1,900,000          
Oxford Finance, LLC [Member] | Term Loans [Member]                                                    
Debt Instrument, Interest Rate, Stated Percentage               7.06%                                    
Debt Instrument, Prepayment Fee Before First Anniversary,Percentage               3.00%                                    
Debt Instrument, Prepayment Fee if Company is Acquired Within Six Months of Closing, Percentage               1.00%                                    
Debt Instrument, Prepayment Fee Between First and Second Anniversary, Percentage               2.00%                                    
Debt Instrument, Prepayment Fee After Second Anniversary, Percentage               1.00%                                    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid, Percentage               4.25%                                    
Long-term Debt, Principal and Interest Payments, Term       3 years                                            
Debt Instrument, Periodic Payment Terms, Increase (Decrease) in Balloon Payment to be Paid                             $ 200,000 $ 100,000                    
Debt Instrument, Periodic Payment, Increase (Decrease) of Interest-Only Payments                             150 days 1 year                    
Debt Instrument, Periodic Payment, Increase (Decrease) of Periodic Payments                             1 year 90 days 1 year 330 days                    
Interest Expense, Debt, Total                                   $ 436,000 482,000              
Oxford Finance, LLC [Member] | Term Loans [Member] | Domain [Member]                                                    
Proceeds from Noncontrolling Interests                     $ 20,000,000                              
Restricted Cash, Total                     200,000                              
Debt Instrument, Periodic Payment Terms, Increase (Decrease) in Balloon Payment to be Paid                     $ 50,000                         $ 20,000    
Oxford Finance, LLC [Member] | Term Loans [Member] | Convertible Promissory Note of 1.5 Million [Member]                                                    
Debt Instrument, Increase of Interest-Only Periodic Payments Upon Entering Into a Merger                           60 days                        
Debt Instrument, Increase of Periodic Payments Following Merger                           330 days                        
Debt Instrument, Increase of Periodic Payments Following the Closing of a Convertible Note                       300 days                            
Debt Instrument, Periodic Payment Terms, Increase (Decrease) in Balloon Payment to be Paid                       $ 35,000   $ 25,000         $ 25,000 35,000            
Debt Instrument, Increase of Interest-Only Periodic Payments Upon Closing of Convertible Note                       30 days   30 days                        
Proceeds from Convertible Debt                       $ 1,500,000   $ 1,500,000                        
Oxford Finance, LLC [Member] | Term Loans [Member] | London Interbank Offered Rate (LIBOR) Swap Rate [Member] | Minimum [Member]                                                    
Debt Instrument, Basis Spread on Variable Rate             0.19% 0.19%                                    
Oxford Finance, LLC [Member] | Term Loan C [Member]                                                    
Debt Instrument, Face Amount               $ 5,000,000                                    
Proceeds from Issuance of Debt         $ 0                                          
Debt Instrument, Unused Borrowing Capacity, Amount         5,000,000                                          
Debt Instrument, Unused Borrowing Capacity, Expired         $ 5,000,000                                          
Majority Investors [Member]                                                    
Debt Instrument, Face Amount                       $ 4,500,000               $ 4,500,000            
Debt Instrument, Interest Rate, Stated Percentage                       8.00%         8.00% 8.00%   8.00%            
Majority Investors [Member] | Second Note to Fund the Company's Operations [Member]                                                    
Proceeds from Notes Payable, Total                 $ 500,000 $ 5,000,000