Quarterly report pursuant to Section 13 or 15(d)

Convertible Notes Payable (Details Textual)

v3.19.1
Convertible Notes Payable (Details Textual) - USD ($)
1 Months Ended 2 Months Ended 3 Months Ended 5 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended 24 Months Ended
Jul. 15, 2018
May 11, 2016
Feb. 12, 2016
Dec. 31, 2018
Sep. 30, 2018
Jul. 25, 2018
Jun. 30, 2018
Jun. 29, 2018
Jun. 15, 2018
Feb. 28, 2018
Nov. 30, 2017
Nov. 30, 2016
Jul. 31, 2016
Sep. 18, 2015
May 25, 2018
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2018
Sep. 30, 2017
Jun. 30, 2018
Oct. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2017
Jan. 31, 2017
Dec. 31, 2016
Feb. 29, 2016
Debt Instrument, Face Amount                     $ 6,500,000                           $ 300,000    
Debt Instrument Convertible Conversion Price Description       The conversion price is the lesser of $4.50 or the highest price per common share sold in the IPO or paid by a buyer upon a change in control multiplied by 75%                                              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                 208,350                                    
Debt Conversion, Converted Instrument, Shares Issued           99,594                                          
Proceeds from Convertible Debt                               $ 0 $ 1,224,000                    
Interest Expense                               0 8,738,000                    
General and Administrative Expense                               $ 615,000 1,231,000                    
Class of Warrant or Right, Exercise Price of Warrants or Rights                                                 $ 5.40    
Debt Instrument, Debt Default, Amount             $ 26,400,000   $ 1,725,000                     $ 26,400,000              
Investment Bankers [Member]                                                      
Number of Warrants Issued                               5,000                      
Lender [Member]                                                      
Number of Warrants Issued                               25,000                      
Mr Moyer [Member]                                                      
Reimbursable Expenses                                               $ 69,000      
Mr Jonathan Gadzak [Member]                                                      
Certain Expenses to be converted                                               12,000      
Series C Convertible Notes [Member]                                                      
Debt Instrument, Maturity Date                   Aug. 28, 2018                                  
Debt Instrument Convertible Conversion Price Description                   The conversion price in effect upon an initial public offering is the lesser of $9.00 or the price per common share in the pre-money valuation immediately prior to the initial public offering multiplied by 80%. The conversion price at any other conversion event is $9.00.                                  
Amortization of Debt Discount (Premium)                               $ 0 0                    
Debt Conversion, Converted Instrument, Shares Issued           7,353       327                                  
Proceeds from Convertible Debt                                         $ 2,880,000            
Debt Instrument, Unamortized Discount, Current                   $ 209,000                                  
Extinguishment of Debt, Amount                                               2,855,000      
Interest Payable                                             $ 172,000 172,000   $ 25,000  
Interest Expense                                 0                    
Promissory Notes [Member]                                                      
Extinguishment of Debt, Amount                                               236,000      
Interest Payable                                             19,000 19,000      
Series D Convertible Notes [Member]                                                      
Debt Instrument, Maturity Date                   Jun. 30, 2018                                  
Debt Instrument Convertible Conversion Price Description         The conversion price in effect upon on initial public offering is the lesser of $4.50 or the highest price per common share sold in the initial public offering multiplied by 75%. The conversion price at any other conversion event is $4.50.                                            
Interest Expense, Debt                                 1,007,000                    
Amortization of Debt Discount (Premium)                               0 $ 428,000                    
Debt Conversion, Converted Instrument, Shares Issued           3,783,334                                          
Debt Instrument, Convertible, Conversion Price       $ 4.50                                   $ 4.50          
Debt Instrument, Unamortized Discount, Current                                             386,000 386,000      
Debt Instrument, Interest Rate, Increase (Decrease)                   10.00%                                  
Series D Convertible Notes [Member] | Investor [Member]                                                      
Proceeds from Convertible Debt                                               $ 4,717,000      
Series E Convertible Notes [Member]                                                      
Debt Instrument Convertible Conversion Price Description                           The conversion price in effect upon on initial public offering is the lesser of $4.50 or the highest price per common share sold in the initial public offering multiplied by 75%. The conversion price at any other conversion event is the lessor of $4.50 or the price per share issued by the Company in connection with any sale involving substantially all the assets of the Company                          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights           487,864                                          
Amortization of Debt Discount (Premium)                                           $ 0          
Proceeds from Convertible Debt                                     $ 5,000,000                
Debt Instrument, Unamortized Discount, Current       $ 275,000                                   $ 275,000          
Repayments of Convertible Debt                     5,882,000                                
Default Interest And Penalities                     1,098,000                                
Reimbursement Of Legal Fees                     179,000                                
Reimbursement Of Consulting Travel And Lodging Fees                     102,000                                
Repayments of Debt                     $ 7,261,000                                
Interest Expense                                             1,980,000        
General and Administrative Expense                                             281,000        
Legal Fees                                             179,000        
Consulting Expenses                                             $ 102,000        
Warrants Issuable In Connection With Default Notice                     487,865                                
Series F Convertible Notes [Member]                                                      
Debt Instrument, Interest Rate, Stated Percentage                                 15.00% 15.00%                  
Debt Instrument Convertible Conversion Price Description             The conversion price in effect upon on an initial public offering shall be the lesser of $4.50 or the highest price per common share sold in the initial public offering multiplied by 60%.                                        
Interest Expense, Debt                                 $ 364,000                    
Amortization of Debt Discount (Premium)                               0 $ 693,000                    
Debt Conversion, Converted Instrument, Shares Issued           3,849,210                                          
Debt Instrument, Convertible, Conversion Price                                 $ 4.50 $ 4.50                  
Proceeds from Convertible Debt                             $ 225,000     $ 10,345,000                  
Debt Instrument, Unamortized Discount, Current                                 $ 135,000 $ 135,000                  
Convertible Notes Payable [Member]                                                      
Debt Conversion, Converted Instrument, Shares Issued           9,527,144                                          
Series G Convertible Notes [Member]                                                      
Debt Instrument, Face Amount               $ 2,813,000                                      
Debt Instrument, Maturity Date                 Jul. 15, 2018                                    
Interest Expense, Debt                               0 0                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 625,000                                                    
Amortization of Debt Discount (Premium)                               $ 0 0                    
Debt Conversion, Converted Instrument, Shares Issued           1,406,250                                          
Proceeds from Convertible Debt               $ 2,200,000                                      
Interest Expense                                 0                    
Cancellation of Reimbursement Payable                                       $ 50,000              
Convertible Notes Payable $ 2,813,000                                                    
Debt Instrument Original Issue Discount                 15.00%                                    
Increase in Debt Instrument Original Issue Discount                 20.00%                                    
Debt Conversion, Description (i) extend the maturity date of such notes from July 15, 2018 to July 25, 2018 and (ii) agreed to make the Series G Notes automatically convertible in connection with an initial public offering at a conversion price of the lesser of $4.50 or 40% of the highest price of the common stock sold in an initial public offering.                                                    
Warrant [Member]                                                      
Class of Warrant or Right, Exercise Price of Warrants or Rights       $ 5.40                                   $ 5.40          
Warrant [Member] | Series C Convertible Notes [Member] | Investment Bankers [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               26,354                      
Warrant [Member] | Series C Convertible Notes [Member] | Investor [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               188,236                      
Warrant [Member] | Series D Convertible Notes [Member]                                                      
Class of Warrant or Right, Outstanding                               2,035,434                      
Warrant [Member] | Series D Convertible Notes [Member] | Investment Bankers [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               380,449                      
Warrant [Member] | Series D Convertible Notes [Member] | Investor [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               1,017,692                      
Warrant [Member] | Series E Convertible Notes [Member]                                                      
Class of Warrant or Right, Outstanding                     3,102,245                                
Warrant [Member] | Series E Convertible Notes [Member] | Investment Bankers [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               114,380                      
Warrant [Member] | Series E Convertible Notes [Member] | Investor [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               1,307,190                      
Warrant [Member] | Series F Convertible Notes [Member] | Investment Bankers [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               233,111                      
Warrant [Member] | Series F Convertible Notes [Member] | Lender [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               1,174,447                      
Warrant [Member] | Series G Convertible Notes [Member] | Investment Bankers [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               58,334                      
Warrant [Member] | Series G Convertible Notes [Member] | Lender [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                               833,350                      
February 2016 Note [Member]                                                      
Debt Instrument, Face Amount     $ 300,000                                                
Debt Instrument, Interest Rate, Stated Percentage     10.00%                                                
Debt Instrument, Maturity Date     Jan. 31, 2017             Jun. 30, 2018   Sep. 01, 2017                              
Debt Instrument Convertible Conversion Price Description                       The conversion price is the lesser of $4.50 or the highest price per common share sold in the IPO or paid by a buyer upon a change in control multiplied by 75%.                              
Interest Expense, Debt                                 8,000                    
Amortization of Debt Discount (Premium)                               $ 0 $ 0                    
February 2016 Note [Member] | Warrant [Member]                                                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                                                     33,334
May 2016 Note [Member]                                                      
Proceeds from Collection of Advance from Significant Shareholder   $ 300,000                                                  
Minimum Investments to be Received   $ 500,000                                                  
Proceeds from Collection of Additional Investments from Significant Shareholder                         $ 201,000                            
Debt Conversion, Original Debt, Amount                         $ 201,000                            
Debt Instrument, Convertible, Conversion Price                         $ 4.50                            
May 2016 Note [Member] | Preferred Stock [Member]                                                      
Debt Conversion, Converted Instrument, Shares Issued                         111,307