Shareholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2015
Shareholders' Equity [Abstract]  
Schedule of Assumptions Used to Value Options Granted to Employees
2015           2014     2013
Fair value on grant date $ 2.37
  $ 2.30
  $ 2.86
Expected Dividend yield   -       -       -
Expected volatility   50 %      50 %     64 %
Risk free interest rate   1.80 %      1.68 %     1.62 %
Expected term of the option   5 years       5 years       5 years
Schedule of Option Activity
               
       
         
 
       
 
   
 
 
 
  Number of Shares     Weighted Average   Weighted Average Remaining  
 
  Subject to Option     Exercise Price   Contractual Term (Years)   Aggregate Intrinsic Value  
Balance at December 31, 2012   1,117,899     $ 9.03   3.7  

 
                         
       Granted   499,700
  $ 5.26            
       Cancelled   (64,500 )    $ 12.81            
       Exercised   (72,500 )   $ 4.83            
Balance at December 31, 2013   1,480,599     $ 7.80   5.2  

 
   
       Granted   209,750     $ 5.19            
       Cancelled   (104,750 )   $ 7.83            
       Exercised   (14,800 )   $ 5.56            
Balance at December 31, 2014   1,570,799     $ 7.49   5.2  

 
   
       Granted   204,000     $ 5.26            
       Cancelled   (367,793 )   $ 7.70            
       Exercised   -
  $ -            
Balance at December 31, 2015   1,407,006     $ 7.11  

6.2

   $ 232,000  
  Number of Shares Underlying          
  Warrants and Non- Employee     Weighted Average  
  Options Granted     Exercise Price  
Balance at December 31, 2012   1,512,103     $ 5.56  
   
       Exercised   (107,483 )     4.45  
       Terminated   (25,000 )     9.00  
       Issued   -       -  
Balance at December 31, 2013   1,379,620     $ 5.58  
   
       Exercised   (50,000 )     4.45  
       Terminated   -
    -  
       Issued   24,000       6.58  
Balance at December 31, 2014   1,353,620     $ 5.64  
   
       Exercised   (137,174 )     4.73  
       Terminated   (426,083 )     6.09  
       Issued   -       -  
Balance at December 31, 2015   790,363     $ 5.56