v3.19.3
Note 10 - Stock Options (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
May 03, 2019
Jun. 30, 2019
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         0 0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance   748,000 748,000   19,222 19,222 19,222
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount         $ 531,000    
Non-employee Stock Options, Comensation Expense, Cost Not yet Recognized, Amount         $ 48,000    
Non-employee Stock Options, Comensation Expense, Cost Not yet Recognized, Period for Recognition         270 days    
Common Stock, Capital Shares Reserved for Future Issuance         19,222 19,222  
Share Price         $ 64.07 $ 61.28  
Share-based Payment Arrangement, Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   0 0        
Share-based Payment Arrangement, Expense     $ 136,000 $ 150,000 $ 293,000 $ 301,000  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total   $ 395,000 $ 395,000        
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition     1 year 182 days   2 years    
Non-employee Options [Member]              
Share-based Payment Arrangement, Expense     $ 32,000 $ 0 $ 16,000 $ 0  
Non-employee Stock Options, Comensation Expense, Cost Not yet Recognized, Amount   $ 16,000 $ 16,000        
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition     90 days        
Alliqua Biomedical, Inc. [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance 57,822            
Minimum [Member] | Alliqua Biomedical, Inc. [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercise Price $ 21.00            
Maximum [Member] | Alliqua Biomedical, Inc. [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercise Price $ 656.40            
Alliqua Biomedical, Inc. [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 690,058            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance   11,000 11,000        
Alliqua Biomedical, Inc. [Member] | Minimum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercise Price $ 1.11            
Alliqua Biomedical, Inc. [Member] | Maximum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercise Price $ 3.06            
The Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Minimum Price as Percentage of Estimated Fair Value of Underlying Shares         100.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Minimum Price as Percentage of Estimated Fair Value of Underlying Shares, 10% Shareholder         110.00%    
The Plan [Member] | Share-based Payment Arrangement, Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period         10 years    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         4 years