Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Stock-Based Compensation (Details Narrative)

v3.19.1
Stockholders' Equity and Stock-Based Compensation (Details Narrative) - USD ($)
1 Months Ended 9 Months Ended 12 Months Ended
May 04, 2018
Jul. 12, 2017
Feb. 06, 2017
Aug. 02, 2016
Aug. 31, 2018
Apr. 30, 2018
Mar. 30, 2018
Jan. 30, 2018
Oct. 26, 2017
Aug. 30, 2017
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Jul. 30, 2018
May 31, 2017
Mar. 25, 2015
Exercise price               $ 0.25                
Common stock, shares authorized                       100,000,000 100,000,000      
Common stock, shares, outstanding                       32,862,090 12,737,703      
Class of Warrant or Right, Outstanding                       844,337 1,210,905      
Stock options outstanding                       5,604,154 3,976,884      
Additional common shares                         100,753      
Total stock and stock equivalents outstanding                       43,114,512 19,046,245      
Accumulated dividend                       $ 400,000 $ 300,000      
Proceeds from the issuance of the warrants and common shares                       $ 4,000,000        
Common stock, conversion basis                       The Series B Preferred Stock was initially convertible into 2,666,667 shares of common stock.        
Preferred stock par value                       $ 0.001 $ 0.001      
Common Stock, Shares Issued                       32,862,090 12,737,703      
Number of options vested and expected to vest outstanding                       3,935,138 2,434,148      
Unrecognized compensation costs                       $ 800,000        
Weighted average recognition period                       8 months 12 days        
Aggregate intrinsic value                       $ 0 $ 300,000      
Description of Long-Term Non-Qualified Option Grants                       In accordance with ASC 718, the market-based and performance-based long-term non-qualified option grants awards issued in 2017 were assigned a fair value of $0.80 per option share (total value of $0.9 million) on the date of grant using a Monte Carlo simulation. The following assumptions were used in the Monte-Carlo simulation model:        
Series B Preferred Stock conversion description                       The Company has the option of forcing the conversion of all or part of the Series B Preferred Stock if at any time the average closing price of the Company’sCompany’s common stock for a thirty-trading day period is greater than $5.4902 prior to August 2, 2019 or greater than $8.2353 at any time. The Company can only exercise this option if it also requires the conversion of the Series A Preferred Stock in the same proportion as it is requiring of the Series B Preferred Stock.        
Preferred stock convertible amount                       $ 6,200,000        
2006 Stock Plan and 2015 Equity Incentive Plan [Member]                                
Stock options outstanding                       5,604,154 3,976,884      
Options vested                       3,935,138 2,434,148      
PIK dividend one [Member]                                
Total deemed dividends value                       $ 41,000        
PIK dividend [Member]                                
Conversion price       $ 2.7451               $ 1.50        
Fair value per share       $ 3.315               $ 2.34        
Total cumulative deemed dividend                       $ 100,000        
Deferred financing costs                       1,000,000        
Investment Bank [Member]                                
Monthly payments     $ 15,000                          
Introductory fee in percentage     7.00%                          
Warrants fees in percentage     5.00%                          
Offering price term     3 years                          
2015 Equity Incentive Plan [Member]                                
Common shares issued under incentive plan 6,300,000                              
New ATM agreement [Member]                                
Proceeds from issuance of shares                       $ 7,200,000        
Sale of stock, number of shares                       6,400,000        
Remaining balance of sale of shares                       $ 40,800,000        
Common stock authorized to be issued under prospectus supplement, value             $ 50,000,000                  
Convertible Series A Preferred Stock [Member]                                
Common stock, shares issued, conversion of preferred stock           124,882                    
Preferred Stock, Shares Outstanding                       813,624 1,020,000      
Conversion price                       $ 2.75        
Preferred stock, shares issued                       813,624 1,020,000      
Preferred stock, liquidation preference                       $ 2,640,862 $ 3,088,764      
Preferred stock convertible amount       $ 600,000                        
Series B Convertible Preferred Stock [Member]                                
Additional common shares                       175,237        
Accrued dividend                       $ 262,856        
Convertible Series B Preferred Stock [Member]                                
Class of Warrant or Right, Outstanding               666,664                
Preferred Stock, Shares Outstanding                       2,666,667 0      
Rate of dividend payable in kind               7.00%                
Proceeds from the issuance of the warrants and common shares                       $ 3,700,000        
Price per share               $ 1.50                
Conversion price               $ 1.50                
Preferred stock, shares issued               2,666,667       2,666,667 0      
Preferred stock, liquidation preference                       $ 4,262,855        
Liquidation preference per share               $ 1.50                
Common stock exercise price               1.875                
Preferred stock convertible amount                       $ 3,600,000        
Series A Convertible Preferred Stock [Member]                                
Additional common shares                       148,403 100,753      
Accrued dividend                       $ 407,382 $ 276,578      
Long-Term Non-Qualified Options [Member] | Advisory board members[Member]                                
Non-qualified stock options granted                       101,351        
Term of options                       10 years        
Long-Term Non-Qualified Options [Member] | Chief Executive Officer [Member] | Advisory board members[Member]                                
Non-qualified stock options granted                       1,409,248        
Long-Term Non-Qualified Options [Member] | Chief Executive Officer [Member] | Minimum [Member] | Advisory board members[Member]                                
Contractual lives                       3 years        
Long-Term Non-Qualified Options [Member] | Chief Executive Officer [Member] | Maximum [Member] | Advisory board members[Member]                                
Contractual lives                       10 years        
Long-Term Non-Qualified Options [Member] | Directors, Officers and Employees [Member] | Advisory board members[Member]                                
Non-qualified stock options granted                       5,160,826        
Long-Term Non-Qualified Options [Member] | Directors, Officers and Employees [Member] | Minimum [Member] | Advisory board members[Member]                                
Exercise price                       $ 0.9        
Contractual lives                       6 months        
Term of options                       5 years        
Long-Term Non-Qualified Options [Member] | Directors, Officers and Employees [Member] | Maximum [Member] | Advisory board members[Member]                                
Exercise price                       $ 43.25        
Contractual lives                       9 years 8 months 9 days        
Term of options                       10 years        
Long-Term Non-Qualified Options [Member] | Director [Member]                                
Non-qualified stock options granted         212,528                      
Description of option vesting         The remaining approximately 212,528 stock options were service based options issued to the directors of the Company that vest over a one-year period on the anniversary date of the grant. All options granted have a 10-year contractual term                      
Long-Term Non-Qualified Options [Member] | Employees and Consultants [Member]                                
Non-qualified stock options granted         1,540,263                      
Description of option vesting         The service condition vests one-third annually over a 3-year period with accelerated vesting of these options occurring upon applicable performance or market conditions being satisfied by certain milestone dates                      
Long-Term Non-Qualified Options [Member] | Employees, Consultants and Directors [Member]                                
Non-qualified stock options granted         1,752,791                      
Strike price         $ 0.90                      
Description of option vesting         The service condition vests one-third annually over a 3-year period with accelerated vesting of these options occurring upon applicable performance or market conditions being satisfied by certain milestone dates                      
Description of Long-Term Non-Qualified Option Grants         In accordance with ASC 718, awards with service, market and performance conditions for the employees and consultants were assigned a fair value of $0.69 per share and the awards with service conditions for the directors of the Company were assigned a fair value of $0.70 per share (total value of $1.2 million). The value was determined using a Monte Carlo simulation Model                      
Description for accelerated vesting of options         <p style="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif"> </font></p> <table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="vertical-align: top"> <td style="width: 4%; text-align: justify"></td> <td style="width: 4%; text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif">1.</font></td> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif">The Company’s closing stock price is above $3 per share for 10 consecutive trading days by December 31, 2019.</font></td></tr> <tr> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif"> </font></td> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif"> </font></td> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif"> </font></td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif"> </font></td> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif">2.</font></td> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif">The Company secures at least $5 million of funding from the Department of Energy by June 30, 2019.</font></td></tr> </table>                      
Description for exercise of options         The weighted average years remaining of expected life was itself calculated based on a Monte Carlo simulation under which it was assumed that the options would be exercised, if vested, when the stock reached a price of $4.50, otherwise they would be exercised at expiration, if in the money                      
Consultants [Member] | Long-Term Non-Qualified Options [Member] | Advisory board members[Member]                                
Non-qualified stock options granted                       485,957        
Consultants [Member] | Long-Term Non-Qualified Options [Member] | Advisory board members[Member] | Minimum [Member]                                
Exercise price                       $ 0.9        
Term of options                       3 years        
Consultants [Member] | Long-Term Non-Qualified Options [Member] | Advisory board members[Member] | Maximum [Member]                                
Exercise price                       $ 43.25        
Term of options                       10 years        
Holders of Series A Preferred Shares [Member]                                
Convertible preferred stock, shares converted           111,260         95,116          
Common stock, shares issued, conversion of preferred stock           124,882         110,530          
Preferred stock, liquidation preference                       $ 2,600,000        
Shares issued against dividend                     729          
BCF [Member]                                
Accrete dividend       $ 2.7451               $ 0.84        
Additional deemed dividend       $ 0.5699                        
Preferred stock convertible amount       $ 2,800,000               $ 2,600,000        
General International Holdings, Inc [Member] | Convertible Series A Preferred Stock [Member]                                
Common stock, shares, outstanding       255,000                        
Rate of dividend payable in kind       7.00%                        
Number of shares reserved for future issuance       1,020,000                        
Common stock shares reserved for future issuance, Value       $ 2,800,000                        
Price per share       $ 2.75                        
Conversion price       2.7451                        
Fair value per share       3.315                        
Average market price of common stock       $ 3.315                        
Aggregate intrinsic value       $ 2,800,000                        
Preferred stock, shares issued       1,020,000                        
Preferred stock, liquidation preference per share       $ 2.7451                        
Preferred stock convertible amount       $ 3,400,000                        
ATM Agreement [Member] | B. Riley FBR, Inc. [Member]                                
Net proceeds to Company                       28,800,000        
ATM Agreement [Member] | B. Riley FBR, Inc. [Member] | On January 1, 2019 To March 29, 2019 [Member]                                
Proceeds from issuance of shares                       $ 1,900,000        
Sale of stock, number of shares                       3,200,000        
ATM Agreement [Member] | B. Riley FBR, Inc. [Member] | On January 24, 2018, January 26, 2018, February 7, 2018, and March 2, 2018 [Member]                                
Aggregate registration amount                       $ 22,600,000        
2015 Equity Incentive Plan [Member]                                
Expected term                 5 years 3 years            
Non-qualified stock options granted                 523,319 31,425            
Contractual lives                 10 years 10 years            
Strike price                 $ 1.05 $ 1.08            
Fair market value of per option                 $ 0.73 $ 0.80            
2015 Equity Incentive Plan [Member] | Employees and Consultants [Member] | Long-Term Non-Qualified Options [Member]                                
Options vested                 2,800,000              
Stock options granted                 179,211              
Contractual lives                 10 years              
Strike price                 $ 1.05              
Description of option vesting                 The Company’s closing stock price is above $3 per share by December 31, 2018              
Description of Long-Term Non-Qualified Option Grants                 Approximately 0.7 million of such long-term non-qualified stock options were issued under the 2015 Equity Stock Plan.              
2015 Equity Incentive Plan [Member] | Director [Member]                                
Stock options outstanding                 1,120,322              
Non-qualified stock options granted                 1,299,533              
Description of option vesting                 Accelerated 100% vesting              
Stock Options and Restricted Stock [Member] | Plan [Member]                                
Common stock, shares authorized                               600,000
Common stock, shares authorized increased 3,400,000                           2,900,000 1,400,000
Warrants [Member]                                
Proceeds from the issuance of the warrants and common shares                       300,000        
Warrants [Member] | Convertible Series B Preferred Stock [Member]                                
Exercise price               $ 1.50                
Number of shares reserved for future issuance                           133,432    
Maturity date               Jan. 30, 2021                
Convertible Series B Preferred Stock [Member]                                
Accumulated dividend                       $ 187,000        
Price per share                       $ 2.34        
Preferred stock, shares issued                       2,666,667        
Preferred stock, liquidation preference                       $ 4,300,000        
ATM Offering - 2017 [Member] | FBR Capital Markets & Co. and MLV & Co. LLC [Member]                                
Net proceeds to Company   $ 1,600,000                            
Issuance of shares   1,400,000