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Stock Option Plan (Tables)
3 Months Ended
Mar. 31, 2016
Stock Option Plan  
Summary of stock option activity

 

 

 

 

Options Outstanding

 

 

 

 

 

 

 

Weighted-

 

 

 

Shares

 

 

 

Average

 

 

 

Available

 

Number

 

Exercise

 

 

 

for Grant

 

of Options

 

Price

 

Balance at December 31, 2015

 

2,559,499

 

784,136

 

$

4.09

 

Additional shares authorized

 

1,496,001

 

 

 

Options granted

 

(1,025,250

)

1,025,250

 

15.00

 

Options exercised

 

 

(500

)

0.28

 

Options forfeited

 

21,500

 

(21,500

)

14.71

 

 

 

 

 

 

 

 

 

Balance at March 31, 2016

 

3,051,750

 

1,787,386

 

$

10.22