v3.19.3
Note 7 - Term Loans and Convertible Promissory Notes (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended 44 Months Ended
May 03, 2019
Nov. 24, 2015
Aug. 31, 2019
Jul. 31, 2019
Jun. 30, 2019
May 31, 2019
Jan. 31, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Dec. 31, 2018
Oct. 31, 2018
Debt Conversion, Original Debt, Amount                     $ 3,203,000      
Conversion of Notes into Series B Convertible Preferred Stock [Member]                              
Debt Conversion, Original Debt, Amount           $ 3,200,000                  
Conversion of Notes into Series B Convertible Preferred Stock [Member] | Alliqua Biomedical, Inc. [Member]                              
Debt Conversion, Converted Instrument, Shares Issued 367,041         367,041                  
Debt Instrument, Convertible, Beneficial Conversion Feature                     2,100,000        
Modified March 2019 and Modified December 2018 Notes [Member]                              
Debt Instrument, Convertible, Preferred Stock Proceeds Trigger                     $ 5,000,000        
Debt Instrument, Conversion to Cash in Case of Change in Control                 200.00%   200.00%   200.00%    
Modified March 2018, September 2018, December 2018, and March 2019 Notes [Member]                              
Probability of Qualified Financing Occurring                             0.00%
Embedded Derivative, Fair Value of Embedded Derivative Liability                 $ 0   $ 0   $ 0 $ 0  
Probability of Change in Control Occurring                 0.00%   0.00%   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   11,829                          
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                 $ 1,400,000   $ 1,400,000   $ 1,400,000 2,300,000  
Oxford Finance, LLC [Member] | Term Loan B [Member]                              
Debt Instrument, Face Amount   $ 2,000,000                          
Proceeds from Issuance of Debt                         2,000,000    
Debt Issuance Costs, Gross                 3,000   3,000   3,000    
Loans Payable, Total                 1,000,000   1,000,000   1,000,000 $ 1,500,000  
Oxford Finance, LLC [Member] | Term Loans [Member]                              
Debt Instrument, Interest Rate, Stated Percentage   7.06%                          
Debt Instrument, Periodic Payment, Increase (Decrease) of Interest-Only Payments         60 days                    
Debt Instrument, Periodic Payment, Period of Interest-Only Payments, Followed by Five Months Scheduled Repayment     60 days                        
Debt Instrument, Periodic Payment, Period of Interest-Only Payments, Minimum Repayment     $ 500,000                        
Gain (Loss) Debt Modification                     0        
Interest Expense, Debt, Total                 100,000 $ 173,000 436,000 $ 482,000      
Oxford Finance, LLC [Member] | Term Loans [Member] | Domain [Member]                              
Debt Instrument, Increase of Periodic Payments Upon Delivery of Executed Term Sheet             240 days                
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   $ 20,000   $ 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              
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%                          
Majority Investors [Member] | First Note to Fund the Company's Operations [Member]                              
Proceeds from Notes Payable, Total       $ 600,000                      
Majority Investors [Member] | Second Note to Fund the Company's Operations [Member]                              
Proceeds from Notes Payable, Total     $ 300,000                        
Majority Investors [Member] | Notes to Fund the Company's Operations [Member]                              
Debt Instrument, Interest Rate, Stated Percentage                 8.00%   8.00%   8.00%