Quarterly report pursuant to Section 13 or 15(d)

Stockholder's Equity (Details Narrative)

v3.10.0.1
Stockholder's Equity (Details Narrative)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Jul. 03, 2018
USD ($)
$ / shares
shares
Jul. 02, 2018
USD ($)
$ / shares
shares
Jun. 06, 2018
USD ($)
$ / shares
shares
Mar. 27, 2018
USD ($)
shares
Mar. 12, 2018
USD ($)
shares
Feb. 21, 2018
shares
Feb. 16, 2018
USD ($)
$ / shares
shares
Sep. 30, 2018
USD ($)
$ / shares
Mar. 31, 2018
USD ($)
Sep. 30, 2017
USD ($)
Jun. 30, 2017
USD ($)
Sep. 30, 2018
USD ($)
$ / shares
shares
Sep. 30, 2017
USD ($)
Feb. 12, 2018
$ / shares
Dec. 31, 2017
$ / shares
Net proceeds | $                       $ 16,100    
Number of shares issued upon services | shares       15,000                      
Value of shares issued upon services | $       $ 69                      
Number of options exercised | shares                       15,292      
Value of options exercised | $               $ 48   $ 1,155      
Unamortized stock compensation for stock options | $               $ 2,070       $ 2,070      
Unamortized stock compensation for stock options period                       1 year 11 days      
Number of outstanding options to purchase | shares                       1,013,462      
Weighted-average exercise price (in dollars per share) | $ / shares               $ 4.40       $ 4.40      
Prepaid expense | $               $ 506       $ 506      
General and administrative expense | $               2,145   $ 2,414   6,021 $ 4,907    
Consultant [Member]                              
Number of shares issued | shares           394                  
Number of options exercised | shares           896                  
General and administrative expense | $               $ 239       $ 239      
Warrant [Member]                              
Warrant exericse price (in dollars per share) | $ / shares               $ 5.20       $ 5.20     $ 5.07
Amendment To Registration Rights Agreement And Certificate Of Designation [Member] | Series A Convertible Preferred Stock [Member] | Warrant [Member]                              
Number of warrants purchased | shares             1,095,682                
Warrant term (in years)             5 years                
Initial fair value | $               $ 3,156       $ 3,156      
Amendment To Registration Rights Agreement And Certificate Of Designation [Member] | Series A Convertible Preferred Stock [Member] | Warrant [Member] | Expected Term [Member]                              
Expected life             5 years                
Amendment To Registration Rights Agreement And Certificate Of Designation [Member] | Series A Convertible Preferred Stock [Member] | Warrant [Member] | Volatility [Member]                              
Measurement Input             67.08                
Amendment To Registration Rights Agreement And Certificate Of Designation [Member] | Series A Convertible Preferred Stock [Member] | Warrant [Member] | Risk Free Interest Rate [Member]                              
Measurement Input             2.63                
Amendment To Registration Rights Agreement And Certificate Of Designation [Member] | Series A Convertible Preferred Stock [Member] | Warrant [Member] | Dividend Rate [Member]                              
Measurement Input             0.00                
Consultant Agreement [Member] | Warrant [Member]                              
Number of warrants purchased | shares   100,000                          
Expensed using the straight-line method | $   $ 146                          
Prepaid expense | $               52       52      
General and administrative expense | $               55       55      
Consultant Agreement [Member] | Warrant [Member] | Expected Term [Member] | Minimum [Member]                              
Expected life   1 year                          
Consultant Agreement [Member] | Warrant [Member] | Expected Term [Member] | Maximum [Member]                              
Expected life   2 years                          
Consultant Agreement [Member] | Warrant [Member] | Volatility [Member] | Minimum [Member]                              
Warrants, measurement input   61.86                          
Consultant Agreement [Member] | Warrant [Member] | Volatility [Member] | Maximum [Member]                              
Warrants, measurement input   65.84                          
Consultant Agreement [Member] | Warrant [Member] | Risk Free Interest Rate [Member] | Minimum [Member]                              
Warrants, measurement input   2.34                          
Consultant Agreement [Member] | Warrant [Member] | Risk Free Interest Rate [Member] | Maximum [Member]                              
Warrants, measurement input   2.81                          
Consultant Agreement [Member] | Warrant [Member] | Dividend Rate [Member]                              
Warrants, measurement input   0.00                          
Consultant Agreement [Member] | Warrant [Member] | Consultant [Member]                              
Number of warrants purchased | shares     10,000                        
Warrant exericse price (in dollars per share) | $ / shares     $ 5.25                        
Warrant term (in years)     5 years                        
Expensed using the straight-line method | $     $ 95                        
General and administrative expense | $               38       45      
Consultant Agreement [Member] | Warrant [Member] | Consultant [Member] | Four Month Anniversary [Member]                              
Number of warrants purchased | shares     10,000                        
Warrant exericse price (in dollars per share) | $ / shares     $ 6.25                        
Consultant Agreement [Member] | Warrant [Member] | Consultant [Member] | Eight Month Anniversary [Member]                              
Number of warrants purchased | shares     10,000                        
Warrant exericse price (in dollars per share) | $ / shares     $ 7.25                        
Consultant Agreement [Member] | Warrant [Member] | Consultant [Member] | Expected Term [Member]                              
Expected life     5 years                        
Consultant Agreement [Member] | Warrant [Member] | Consultant [Member] | Volatility Three Months Ended [Member]                              
Number of warrants purchased | shares     30,000                        
Warrants, measurement input     67.25                        
Consultant Agreement [Member] | Warrant [Member] | Consultant [Member] | Volatility [Member]                              
Warrants, measurement input     69.57                        
Consultant Agreement [Member] | Warrant [Member] | Consultant [Member] | Risk Free Interest Rate [Member]                              
Warrants, measurement input     2.81                        
Consultant Agreement [Member] | Warrant [Member] | Consultant [Member] | Risk Free Interest Rate Nine Months Ended [Member]                              
Warrants, measurement input     2.94                        
Consultant Agreement [Member] | Warrant [Member] | Consultant [Member] | Dividend Rate [Member]                              
Warrants, measurement input     0                        
Consultant Agreement [Member] | Warrant Issued With 30 Days Of Agreement [Member]                              
Number of warrants purchased | shares   25,000                          
Warrant exericse price (in dollars per share) | $ / shares   $ 7.39                          
Expected life   12 months                          
Consultant Agreement [Member] | Warrant Issued With 30 Days Of Agreement [Member]                              
Number of warrants purchased | shares   25,000                          
Warrant exericse price (in dollars per share) | $ / shares   $ 7.39                          
Expected life   18 months                          
Consultant Agreement [Member] | Warrant Issued On Three Months Anniversary Of Agreement [Member]                              
Number of warrants purchased | shares   25,000                          
Warrant exericse price (in dollars per share) | $ / shares   $ 8.75                          
Expected life   18 months                          
Consultant Agreement [Member] | Warrant Issued On Six Months Anniversary Of Agreement [Member]                              
Number of warrants purchased | shares   25,000                          
Warrant exericse price (in dollars per share) | $ / shares   $ 10.00                          
Expected life   24 months                          
Consultant Agreement [Member] | Warrant Issued With 10 Consecutive Trading Days [Member]                              
Warrant exericse price (in dollars per share) | $ / shares   $ 0.01                          
Consultant Agreement [Member] | Warrant Issued With 10 Consecutive Trading Days [Member] | Minimum [Member]                              
Warrant exericse price (in dollars per share) | $ / shares   9.00                          
Consultant Agreement [Member] | Warrant Issued With 10 Consecutive Trading Days [Member] | Maximum [Member]                              
Warrant exericse price (in dollars per share) | $ / shares   $ 13.00                          
Amendment To A Consulting Agreement [Member] | Warrant [Member] | Consultant [Member]                              
Number of warrants purchased | shares 90,000                            
Amendment Consulting Agreement [Member] | Warrant [Member]                              
Number of warrants purchased | shares 90,000                            
Warrant exericse price (in dollars per share) | $ / shares $ 8.50                            
Number of shares issued upon services | shares 30,000                            
Expected life 5 years                            
Expensed using the straight-line method | $ $ 594                            
Prepaid expense | $               454       454      
General and administrative expense | $               $ 136       $ 136      
Amendment Consulting Agreement [Member] | Warrant [Member] | Expected Term [Member]                              
Expected life 5 years                            
Amendment Consulting Agreement [Member] | Warrant [Member] | Volatility [Member]                              
Warrants, measurement input 68.31                            
Amendment Consulting Agreement [Member] | Warrant [Member] | Risk Free Interest Rate [Member]                              
Warrants, measurement input 2.72                            
Amendment Consulting Agreement [Member] | Warrant [Member] | Dividend Rate [Member]                              
Warrants, measurement input 0.00                            
IPO [Member]                              
Number of shares issued | shares             3,500,000                
Share price (in dollars per share) | $ / shares             $ 5.00                
Net proceeds | $             $ 15,000                
Underwriting discounts and commissions | $             1,400                
Other offering expenses | $             $ 1,100                
30 Days Over-Allotment Option [Member] | Amendment To Registration Rights Agreement And Certificate Of Designation [Member] | Series A Convertible Preferred Stock [Member]                              
Number of shares issued | shares             525,000                
Share price (in dollars per share) | $ / shares             $ 5.00             $ 5.00  
Net proceeds | $         $ 258                    
Underwriting discounts and commissions | $         $ 22                    
Number of additional shares issued | shares         56,000