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Note A - The Company and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
 
 
December 31,
 
 
 
2015
 
 
2014
 
                 
Accounts receivable
   $ 3,405,190     $ 645,867  
Allowance for doubtful accounts
     (13,785
)
     (20,526
)
                 
Accounts receivable, net of allowances for doubtful accounts
   $ 3,391,405     $ 625,341  
Summary of Valuation Allowance [Table Text Block]
   
Balance at
Beginning
of Year
    
Charged to
Costs
and
Expenses
    
Deductions
From
Reserves
    
Balance at
End of Year
  
Year Ended December 31, 2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Allowance for Doubtful Accounts
   $ 20,526     $ -     $ (6,741
)
   $ 13,785  
Year Ended December 31, 2014
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Allowance for Doubtful Accounts
   $ 20,526     $ -     $ -     $ 20,526  
Useful Lives of Property Plan and Equipment [Table Text Block]
   
2015
  
Equipment and leasehold improvements
 
 
  
 
 
Equipment (years)
    3 - 5  
Furniture and fixtures (years)
    3 - 5  
Software (years)
    3    
Leasehold improvements
     life or lease term    
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
 
 
Year ended
December 31,
 
 
 
2015
 
 
2014
 
                 
Selling, general and administrative
   $ 134,047     $ 161,466  
Research, development and engineering
     139,042       45,792  
    $ 273,089     $ 207,258  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
 
 
Year ended
December 31,
 
 
 
2015
 
 
2014
 
Weighted average Risk free interest rate
     1.46
%
     1.34
%
Expected life of options (in years)
     4.5       4.5  
Expected dividends
     0
%
     0
%
Weighted average Volatility of stock price
     117
%
     119
%