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Nature of Business and Summary of Significant Accounting Policies (Details Narrative)
 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 05, 2019
USD ($)
shares
Jun. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Jun. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
Jun. 30, 2019
USD ($)
Integer
Jun. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Jan. 02, 2019
USD ($)
Operating lease right of use assets   $ 276,338       $ 276,338        
Operating lease obligations   357,498       357,498          
Net losses   (387,730) $ (3,205,174) $ (2,962,890) $ (2,588,232) (3,592,904) $ (5,551,122) 15,500,000      
Accumulated deficit   $ (80,975,810)       (80,975,810)   (77,382,906)      
Lump sum payment received           6,000,000          
Proceeds from exercise of warrants           1,564,000        
Proceeds from debt               16,500,000      
Proceeds from sale of common stock in underwritten public offering               $ 7,324,900      
Proceeds from issuance of common stock and detachable common stock purchase warrants               $ 2,776,332    
Subordinated and secured debt                 $ 1,608,500    
Proceeds from secured convertible debentures and detachable common stock purchase warrants           6,250,000     $ 4,000,000  
Percentage of reduction on lay-off of employees   40.00%       40.00%          
Sales returns and allowances   $ 37,978   34,227   $ 112,237 54,246        
Shipping and handling costs   13,158   20,317   31,578 34,284        
Advertising expense   510,792   111,677   $ 634,807 191,246        
Percentage of income tax benefit likely of being realized upon settlement with tax authority           greater than 50%          
Penalties              
Number of reportable segments | Integer           1          
Minimum [Member]                      
Estimated useful life of furniture, fixtures and equipment           3 years          
Maximum [Member]                      
Estimated useful life of furniture, fixtures and equipment           10 years          
Subsequent Event [Member]                      
Proceeds from convertible debentures $ 2,780,000                    
Warrants to purchase common stock | shares 571,248                    
ASU 2016-02 Leases [Member]                      
Operating lease right of use assets                     $ 501,000
Operating lease obligations                     582,000
Deferred rent                     $ 81,000