Quarterly report pursuant to Section 13 or 15(d)

Stock Compensation (Details Textual)

v3.19.1
Stock Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Nov. 30, 2016
Stock Compensation (Textual)      
Stock-based compensation expenses $ 243 $ 123  
2012 Equity Incentive Plan [Member]      
Stock Compensation (Textual)      
Common stock reserved for issuance 231,260    
Number of option granted 30,000    
Stock options exercisable, description Stock options generally vest and become exercisable with respect to 100% of the common stock.    
Number of shares vested 451,480    
Number of options unvested 199,260    
Vested options, weighted average remaining contractual life 5 years 7 months 24 days    
Vested options weighted average exercise price, per share $ 6.76    
2012 Equity Incentive Plan [Member] | Minimum [Member]      
Stock Compensation (Textual)      
Number of shares authorized for issuance     550,000
Vesting terms range 0 years    
2012 Equity Incentive Plan [Member] | Maximum [Member]      
Stock Compensation (Textual)      
Number of shares authorized for issuance     850,000
Vesting terms range 4 years    
Employee Stock Option [Member]      
Stock Compensation (Textual)      
Number of option granted 52,000    
Weighted average grant date fair value of stock options granted per shares $ 0.76