XML 44 R35.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stockholders' Equity (Tables)
 6 Months Ended
Jun. 30, 2018
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, 2016  126,500   124,500   -  $3.89  $516,990 
Grants  -   141,000   -  $5.92     
Terminations  (5,000)  (16,000)  -  $5.68     
Exercises  (4,000)  (7,000)  -  $3.47     
Outstanding at December 31, 2017  117,500   242,500   -  $4.58  $1,513,980 
Grants  -   38,500   106,500  $7.35     
Terminations  -   (9,000)  (5,000) $6.27     
Exercises  (10,000)  (1,000)  -  $3.26     
Outstanding at June 30, 2018  107,500   271,000   101,500  $5.40  $680,620 
Vested at June 30, 2018  107,500   37,500   -  $2.60  $611,810 
Vested and expected to vest at June 30, 2018  107,500   271,000   101,500  $5.40  $680,620 
Reserved for future grants  -   1,000   198,500         

 

(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 June 30,
2018

 

For the Six-Month

Period Ended June 30,
2018

 

For the Year

Ended December 31, 2017

Risk-free interest rate 2.8% 2.5% 1.9%
Dividend yield 0% 0% 0%
Expected volatility 55% 57% 61%
Expected life 6.5 years 6.5 years 6.5 years