Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details Narrative)

v3.19.2
Stock-Based Compensation (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Mar. 11, 2019
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Nov. 08, 2018
Jun. 26, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock options granted       30,000 250,000      
Exercise price of options granted       $ 2.23 $ 2.82      
Non-cash compensation expense       $ 98,689 $ 465,810      
Unrecognized compensation expense   $ 72,000   $ 72,000        
Unrecognized compensation expense remaining weighted average period       1 year 1 month 6 days        
Restricted Stock Units (RSUs) [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Non-cash compensation expense   73,000 $ 49,000 $ 75,000 79,000      
Unrecognized compensation expense   $ 140,000   $ 140,000        
Unrecognized compensation expense remaining weighted average period       4 months 24 days        
Aggregate grant date fair value awards amount       $ 156,000        
Warrant [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Warrants outstanding   153,907   153,907        
Weighted average exercise price of warrants   $ 27.37   $ 27.37        
Weighted average remaining contractual life of warrants   1 year 9 months 18 days   1 year 9 months 18 days   2 years 7 months 6 days    
Warrants intrinsic value   $ 0   $ 0        
General and Administrative Expense [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Non-cash compensation expense   $ 18,000 $ 298,000 $ 23,000 $ 387,000      
Board Members [Member] | Restricted Stock Units (RSUs) [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Granted restricted stock units       46,402        
Common stock granted price per share   $ 3.09   $ 3.09        
Adam He [Member] | Restricted Stock Units (RSUs) [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Granted restricted stock units       1,166        
Common stock granted price per share   $ 3.32   $ 3.32        
Employment Agreement [Member] | Mr. He [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock options granted 30,000              
Fair value of options $ 54,000              
Exercise price of options granted $ 2.23              
Option term 10 years              
Option vesting period 2 years              
2013 Equity Compensation Plan [Member] | Minimum [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares authorized for issuance under equity incentive plan               225,000
2013 Equity Compensation Plan [Member] | Maximum [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares authorized for issuance under equity incentive plan               615,000
Amended 2013 Equity Compensation Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares authorized for issuance under equity incentive plan   915,000   915,000     300,000