Quarterly report pursuant to Section 13 or 15(d)

Convertible Preferred Stock and Stockholders' Equity - Additional Information (Details)

v3.20.2
Convertible Preferred Stock and Stockholders' Equity - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
May 18, 2020
Feb. 28, 2020
Sep. 09, 2019
Sep. 01, 2019
Apr. 18, 2019
Apr. 17, 2019
Mar. 01, 2019
Jan. 04, 2019
Sep. 01, 2018
Feb. 29, 2020
Jan. 31, 2018
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Feb. 06, 2020
Oct. 16, 2019
Class of Stock [Line Items]                                            
Temporary Equity, Shares Issued                       250,000           250,000   250,000    
Temporary Equity, Dividend Rate, Percentage                                   8.00%   8.00%    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights         12,756                               4,553  
Proceeds from Warrant Exercises                                   $ 37,000 $ 67,000      
Rights upon a subsequent financing given to holder to purchase all, and no less than all, of the securities offered to investors                       $ 250,000           250,000        
Rights upon a subsequent financing given to holder to tender shares of Series A Preferred Stock for the securities offered                       500,000           500,000        
Fair Value Adjustment of Warrants                       0     $ (18,000)     $ (24,000) (193,000)      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights                                   In the event an employee voluntarily resigns, the release dates of the shares will be extended such that only 16.5% of the shares are released every six months, until 100% are released. In the event that a director voluntarily resigns, each of the release dates will be extended six months        
Stock Issued During Period, Value, Restricted Stock Award, Gross                       $ 0   $ 0 $ (22,000)   $ (65,000)          
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures                         $ 0 $ 0                
Payments Related to Tax Withholding for Share-based Compensation                                   $ 0 $ 87,000      
Number of restricted shares granted                       353,000           706,000        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant                       352           352        
Number of months for termination of employees                                   5 months        
Issuance of common stock, net of shelf offering costs (in shares) 60,250                                          
Warrants to purchase shares of Common Stock         12,756                               4,553  
Aggregate intrinsic value                       $ 1,000           $ 3,000        
February 2020 Private Placement [Member]                                            
Class of Stock [Line Items]                                            
Convertible Preferred Stock, Convertible, Issue of Shares, Threshold Percentage                   9.99%                        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   4,553               45,534                        
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 8.80               $ 9.80                        
Dividend rate                   0.00%                        
Volatility rate                   59.00%                        
Risk free interest rate                   0.89%                        
Exercise price                   $ 6.00                        
Expected term                   5 years                        
Proceeds from Warrant Exercises                   $ 103,000                        
Share Price   $ 9.17                                        
Warrants and Rights Outstanding, Term   5 years                                        
Number of unit issues , Value   $ 91,062                                        
Number of shares per unit   1                                        
Number of warrants per unit   $ 0.50                                        
Cash fees paid   $ 83,000                                        
Warrants to purchase shares of Common Stock   4,553               45,534                        
Exercise price of warrants   $ 8.80               $ 9.80                        
warrant term   5 years                                        
Gross proceeds   $ 835,000                                        
Net proceeds   $ 725,000                                        
Warrants, Beneficial Ownership Interest, Percent                   4.99%                        
Warrant [Member]                                            
Class of Stock [Line Items]                                            
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options                       7,233,449           7,233,449        
Restricted Stock [Member]                                            
Class of Stock [Line Items]                                            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period                                   48,096        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number                       98,669           98,669   47,146    
Number of restricted shares granted                                   102,669        
Allocated Share-based Compensation Expense                                   $ 210,000        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                                   2 years 10 months 24 days        
Share-based Compensation Award, Tranche One [Member]                                            
Class of Stock [Line Items]                                            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage                 33.40%                          
Share-based Compensation Award, Tranche Two [Member]                                            
Class of Stock [Line Items]                                            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage             33.30%                              
Share-based Compensation Award, Tranche Three [Member]                                            
Class of Stock [Line Items]                                            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage       33.30%                                    
Employees [Member]                                            
Class of Stock [Line Items]                                            
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures                     64,224                      
Director [Member]                                            
Class of Stock [Line Items]                                            
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures                     7,656                      
Mr Michael Howse [Member]                                            
Class of Stock [Line Items]                                            
Deferred Compensation Arrangement with Individual, Shares Issued               20,000                            
Alexander Capital, LP.                                            
Class of Stock [Line Items]                                            
Class of Warrant or Right, Exercise Price of Warrants or Rights                                           $ 17.50
Dividend rate                   0.00%                        
Volatility rate                   59.00%                        
Risk free interest rate                   0.89%                        
Exercise price                   $ 6.00                        
Expected term                   5 years                        
Proceeds from Warrant Exercises                   $ 11,000                        
Cash fees paid           $ 406,554                                
Exercise price of warrants                                           $ 17.50
George Oliva [Member]                                            
Class of Stock [Line Items]                                            
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures     7,500                                      
LTSI                                            
Class of Stock [Line Items]                                            
Share-based Compensation Arrangement by Share-based Payment Award Maximum Percentage of Shares Authorized                                       15.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant                       99,619           99,619        
Common Shares [Member]                                            
Class of Stock [Line Items]                                            
Stock Issued During Period, Shares, Restricted Stock Award, Gross                       353   353 20,514   6,193          
Stock Issued During Period, Value, Restricted Stock Award, Gross                       $ 0   $ 0                
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures                         $ 0 $ 0                
Issuance of common stock, net of shelf offering costs (in shares)                           91,062   203,786            
Series A Preferred Stock                                            
Class of Stock [Line Items]                                            
Temporary Equity, Shares Issued         250,000                                  
Preferred Stock, Par or Stated Value Per Share                       $ 4.00           $ 4.00        
Temporary Equity, Stated Value Per Share         $ 4.00                                  
Temporary Equity, Dividend Rate, Percentage         8.00%                                  
Convertible Preferred Stock Conversion Price         $ 80.00             80.00           $ 80.00        
Convertible Preferred Stock Floor Price Per Share         $ 30.00                                  
Convertible Preferred Stock, Convertible, Issue of Shares, Threshold Percentage                                   95.00%        
Proceeds from Issuance of Convertible Preferred Stock         $ 1,000,000                         $ 920,000        
Class of Warrant or Right, Reduced Exercise Price of Warrants or Rights                       $ 30.00           $ 30.00        
Embedded Derivative, Fair Value of Embedded Derivative Liability         $ 216,000                                  
Preferred Stock, Convertible, Threshold Trading Days         5 days                                  
Dividends                       $ 20,000           $ 60,000        
Preferred stock, Redemption Value Percentage         120.00%                                  
Share Price                       $ 4.00           $ 4.00        
Series A Preferred Stock | Minimum                                            
Class of Stock [Line Items]                                            
Proceeds from Issuance of Convertible Preferred Stock         $ 500,000                                  
Preferred stock, Redemption Basis, Amount Sought or Declared         100,000                                  
Preferred stock, Redemption Basis, Gain or Loss on Property         100,000                                  
Series A Preferred Stock | Maximum                                            
Class of Stock [Line Items]                                            
Proceeds from Issuance of Convertible Preferred Stock         $ 5,000,000