Stock Options (Tables)
 3 Months Ended
Mar. 31, 2018
Stock Options  
Summary of the Company's stock option activity and related information

 

                                                                                                                                                                                    

 

 

Options

 

Weighted Average
Exercise Price

 

Outstanding at December 31, 2017

 

 
2,071,616

 

$
1.47

 

Granted

 

 
34,639

 

 
2.80

 

Exercised

 

 
(106,653

)

 
1.74

 

Forfeited

 

 
(23,902

)

 
1.03

 

​

​

​  

​  

​

​

​

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Outstanding at March 31, 2018

 

 
1,975,700

 

 
1.48

 

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​

​  

​  

​

​

​

​

​

​

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​  

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Exercisable at March 31, 2018

 

 
1,231,008

 

 
1.68

 

 

Schedule of stock compensation recognized

 

                                                                                                                                                                                    

 

 

Three
Months
Ended
March 31,

 

 

 

2018

 

2017

 

General and administrative

 

$
28

 

$
24

 

Sales and marketing

 

 
21

 

 
22

 

Research and development

 

 
6

 

 
8

 

​

​

​  

​  

​

​  

​  

​

 

 

$
55

 

$
54

 

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​

​  

​  

​

​  

​  

​

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​  

​  

​

​  

​  

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Schedule of weighted average assumptions for fair value of options granted

 

                                                                                                                                                                                    

 

 

Three Months Ended March 31,

 

 

2018

 

2017

Expected life (years)

 

6.2

 

6.2

Expected volatility

 

37.5%

 

41.5%

Risk-free interest rate

 

2.38 - 2.84%

 

1.94 - 2.32%

Dividend yield

 

0.0%

 

0.0%

Weighted average fair value

 

$1.15

 

$0.40