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Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 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  -   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 
Vested at December 31, 2017  117,500   37,500   -  $2.62  $956,760 
Vested and expected to vest at December 31, 2017  117,500   242,500   -  $4.58  $1,513,980 
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 share based compensation non-vested stock options activity
  Number of Shares  Weighted Average Fair 
Value at Grant Date		  Weighted Average 
Exercise Price		 
Non-vested stock options as of January 1, 2017  98,000  $3.21  $6.03 
Non-vested stock options as of December 31, 2017  205,000  $3.49  $6.07 
Stock options granted during the year ended December 31, 2017  141,000  $3.51  $5.92 
Stock options that vested during the year ended December 31, 2017  20,000  $2.28  $4.73 
Stock options that were forfeited during the year ended December 31, 2017 
  21,000  $2.99  $5.68
Schedule of fair value stock option grant using black-scholes option valuation model with the weighted-average assumptions
  For the 
Year Ended December 31, 
2017		  For the
Year Ended December 31, 
2016		 
Risk-free interest rate  1.9%  1.2%
Dividend yield  0%  0%
Expected volatility  61%  63%
Expected life  6.5 years   6.5 years