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)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
May 18, 2020
shares
Feb. 28, 2020
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$ / shares
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Sep. 09, 2019
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Sep. 01, 2019
Apr. 18, 2019
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$ / shares
shares
Apr. 17, 2019
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Mar. 01, 2019
Jan. 04, 2019
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Sep. 01, 2018
Feb. 29, 2020
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$ / shares
shares
Jan. 31, 2018
shares
Jun. 30, 2020
USD ($)
$ / shares
shares
Mar. 31, 2020
USD ($)
shares
Jun. 30, 2019
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Mar. 31, 2019
USD ($)
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Jun. 30, 2020
USD ($)
item
$ / shares
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Jun. 30, 2019
USD ($)
Dec. 31, 2019
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Feb. 06, 2020
shares
Oct. 16, 2019
$ / shares
Class of Stock [Line Items]                                        
Temporary Equity, Shares Issued | shares                       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 | shares         12,756                           4,553  
Proceeds from Warrant Exercises                               $ 37,000 $ 0      
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                       (5,000)   $ (64,000)   $ (24,000) (175,000)      
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 nine months, until 100% are released. In the event that a director voluntarily resigns, each of the release dates will be extended nine months        
Stock Issued During Period, Value, Restricted Stock Award, Gross                         $ 0   $ (65,000)          
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures                       $ 0 $ 0              
Payments Related to Tax Withholding for Share-based Compensation                               $ 0 $ 65,000      
Number of restricted shares granted | shares                       0       353,000        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | shares                       705       705        
Number of equal tranches for termination of employees | item                               2        
Number of months for termination of employees                               8 months        
Issuance of common stock, net of shelf offering costs (in shares) | shares 60,250                                      
Warrant to purchase shares | shares         12,756                           4,553  
Aggregate intrinsic value                       $ 0       $ 2,000        
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 | shares   4,553               45,534                    
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares   $ 8.80               $ 9.80                    
Dividend rate                   0.00%                    
Volatility rate                   59.00%                    
Risk free interest rate                   0.89%                    
Exercise price | $ / shares                   $ 6.00                    
Expected term                   5 years                    
Proceeds from Warrant Exercises                   $ 103,000                    
Share Price | $ / shares   $ 9.17                                    
Warrants and Rights Outstanding, Term   5 years                                    
Number of unit issues , Value   $ 91,062                                    
Number of shares per unit | shares   1                                    
Number of warrants per unit | $ / shares   $ 0.50                                    
Cash fees paid   $ 83,000                                    
Warrant to purchase shares | shares   4,553               45,534                    
Exercise price of warrants | $ / shares   $ 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 | shares                       7,213,049       7,213,049        
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 | shares                               1,167        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares                       46,929       46,929   47,146    
Number of restricted shares granted | shares                               4,000        
Allocated Share-based Compensation Expense                               $ 648,000        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                               2 years 4 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 | shares                     64,224                  
Director [Member]                                        
Class of Stock [Line Items]                                        
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures | shares                     7,656                  
Mr Michael Howse [Member]                                        
Class of Stock [Line Items]                                        
Deferred Compensation Arrangement with Individual, Shares Issued | shares               20,000                        
Alexander Capital, LP.                                        
Class of Stock [Line Items]                                        
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares                                       $ 17.50
Dividend rate                   0.00%                    
Volatility rate                   59.00%                    
Risk free interest rate                   0.89%                    
Exercise price | $ / shares                   $ 6.00                    
Expected term                   5 years                    
Proceeds from Warrant Exercises                   $ 11,000                    
Cash fees paid           $ 406,554                            
Exercise price of warrants | $ / shares                                       $ 17.50
George Oliva [Member]                                        
Class of Stock [Line Items]                                        
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures | shares     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 | shares                       99,619       99,619        
Common Shares [Member]                                        
Class of Stock [Line Items]                                        
Stock Issued During Period, Shares, Restricted Stock Award, Gross | shares                         353,000   6,193,000          
Stock Issued During Period, Value, Restricted Stock Award, Gross                         $ 0              
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures                       $ 0 $ 0              
Issuance of common stock, net of shelf offering costs (in shares) | shares                         91,062 203,786            
Series A Preferred Stock                                        
Class of Stock [Line Items]                                        
Temporary Equity, Shares Issued | shares         250,000                              
Preferred Stock, Par or Stated Value Per Share | $ / shares                       $ 4.00       $ 4.00        
Temporary Equity, Stated Value Per Share | $ / shares         $ 4.00                              
Temporary Equity, Dividend Rate, Percentage         8.00%                              
Convertible Preferred Stock Conversion Price | $ / shares         $ 80.00             80.00       $ 80.00        
Convertible Preferred Stock Floor Price Per Share | $ / shares         $ 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 | $ / shares                       $ 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       $ 40,000        
Preferred stock, Redemption Value Percentage         120.00%                              
Share Price | $ / shares                       $ 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