Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Details Narrative)

v3.19.1
Stock-Based Compensation (Details Narrative) - USD ($)
12 Months Ended
Sep. 07, 2018
Apr. 19, 2018
Jun. 26, 2017
Dec. 31, 2018
Dec. 31, 2017
Nov. 08, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock options granted       253,000 240,000  
Exercise price of options granted       $ 2.82 $ 10.72  
Period over which compensation expense will be recognized       1 year 2 months 12 days    
Warrants outstanding       170,314    
Weighted average exercise price of warrants       $ 32.44    
Weighted average remaining contractual life of warrants       2 years 7 months 6 days 3 years 3 months 19 days  
Warrants intrinsic value       $ 0    
Employee Stock Option [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Unrecognized compensation expense       301,000    
Restricted Stock Units (RSUs) [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Compensation expense       141,000 $ 161,000  
Unrecognized compensation expense       $ 98,000    
Period over which compensation expense will be recognized       4 months 24 days    
Common stock granted price per share     $ 7.72      
Aggregate grant date fair value awards amount     $ 120,000      
General and Administrative Expense [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Compensation expense       $ 659,000 $ 706,000  
Employment Agreement [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Fair value of options   $ 547,000        
Exercise price of options granted   $ 2.82        
Option term   10 years        
Option vesting period   2 years        
Employee [Member] | Employment Agreement [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock options granted 3,000          
Exercise price of options granted $ 3.07          
Option term 10 years          
Option vesting period 2 years          
Board Members [Member] | Restricted Stock Units (RSUs) [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted restricted stock units     15,544      
Jingbo Song [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock options granted   75,000        
James Kirsch [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock options granted   75,000        
Michael Wang [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock options granted   70,000        
Gary Xiao [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock options granted   30,000        
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   300,000