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Stockholders' Equity (Tables)
 9 Months Ended
Sep. 30, 2017
Stockholders' Equity [Abstract]  
Schedule of activity under the stock option plans
  

 

2000 Plan

  

 

2010 Plan

  

 

2017 Plan

  

Weighted

Average

Exercise

Price

  

 

Aggregate

Intrinsic

Value(1)

 
Outstanding at December 31, 2015  131,500   106,500   -  $3.57  $945,000 
Grants  -   46,000   -  $6.98     
Terminations  (5,000)  (12,000)  -  $6.16     
Exercises  -   (16,000)  -  $5.59     
Outstanding at December 31, 2016  126,500   124,500   -  $3.89  $517,000 
Grants  -   138,000   -  $5.85     
Terminations  (5,000)  (13,000)  -  $5.58     
Exercises  (3,000)  (1,000)  -  $4.13     
Outstanding at September 30, 2017  118,500   248,500   -  $4.54  $718,000 
Vested at September 30, 2017  118,500   42,500   -  $2.64  $621,000 
Vested and expected to vest at September 30, 2017  118,500   248,500   -  $4.54  $718,000 
Reserved for future grants  -   30,500   300,000         

  

(1) Intrinsic value is the difference between the fair market value as of the date indicated and as of the date of the option grant.
Schedule of fair value stock option grant using black-scholes option valuation model with the weighted-average assumptions
  

For the Three-Month Period

Ended September 30, 2017

 

For the Nine-Month Period

Ended September 30, 2017

 

For the Year

Ended December 31, 2016

Risk-free interest rate 1.9% 1.9% 1.2%
Dividend yield 0% 0% 0%
Expected volatility 61% 61% 63%
Expected life 6.5 years 6.5 years 6.5 years