Quarterly report pursuant to Section 13 or 15(d)

3. Summary of Significant Accounting Policies (Tables)

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3. Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2012
Accounting Policies [Abstract]  
Inventories
    September 30,     December 31,  
    2012     2011  
Raw materials   $ 163,260     $ 193,121  
Finished goods     742,393       875,892  
Total   $ 905,653     $ 1,069,013  
Concentration of Revenue
    For the Three Months Ended  
    September 30,  
    2012     2011  
Top Five Customers     76%       58%  
Federal Agencies     38%       29%  

 

    For the Nine Months Ended  
    September 30,  
    2012     2011  
Top Five Customers     54%       29%  
Federal Agencies     46%       15%  
Concentration of Receivables
    September 30,     December 31,  
    2012     2011  
Top Five Customers     76%       89%  
Federal Agencies     30%       42%  
Computation of Loss per Share
    For the Three Months Ended     For the Nine Months Ended  
    September 30,     September 30,  
    2012     2011     2012     2011  
Numerator:                                
Net loss   $ (796,038 )   $ (561,723 )   $ (2,368,637 )   $ (2,153,269 )
Accrued interest on convertible debt, after tax     —         5,208       —         5,208  
Accrued dividend for Preferred Stock     (36,092 )     (71,736 )     (454,936 )     (196,310 )
Beneficial conversion feature for Preferred Stock     —         —         —         (304,823 )
Preferred dividends paid in Common Stock     (88,350 )     —         (249,907 )     (76,017 )
Preferred dividends paid in cash     —         —         —         (42,037 )
Deemed dividend on warrant modifications     (5,347 )     (325,595 )     (190,891 )     (325,595 )
Net loss applicable to common shareholders   $ (925,827 )   $ (953,846 )   $ (3,264,371 )   $ (3,092,843 )
Denominator for basic and diluted loss per share:                                
Weighted average common stock shares outstanding     10,872,877       6,253,349       9,598,066       6,228,585  
Loss per common share - basic and diluted   $ (0.09 )   $ (0.15 )   $ (0.34 )   $ (0.50 )
Anti-dilutive Securities
    For the Three Months Ended     For the Nine Months Ended  
    September 30,     September 30,  
    2012     2011     2012     2011  
Stock options     1,680,250       1,503,500       1,680,250       1,503,500  
Convertible debt     —         412,000       —         412,000  
Common stock warrants     6,080,501       4,210,074       6,080,501       4,210,074  
Convertible preferred stock:                                
Series A Convertible Preferred     —         155,710       —         155,710  
Series B Convertible Preferred     —         13,480       —         13,480  
Series C Convertible Preferred     —         880,980       —         880,980  
Series D Convertible Preferred     750,000       —         750,000       —    
Series E Convertible Preferred     245,098       —         245,098       —    
Series G Convertible Preferred     1,200,950       —         1,200,950       —    
      9,956,799       7,175,744       9,956,799       7,175,744  
Stock-based compensation plan
Assumptions   Awards re-priced during the three months ended September 30, 2012
Expected life (in years)     6  
Weighted average expected volatility     124.9%  
Risk-free interest rate     0.7%  
Weighted average re-priced Black-Scholes calculated fair value     0.32  
Cost of stock-based compensation
    For the Three Months Ended, September 30,  
    2012     2011  
Research and development   $ 21,633     $ 11,609  
Selling and marketing     17,877       6,452  
General and administrative     57,216       14,459  
Total stock-based compensation expense   $ 96,726     $ 32,520  

 

We recognized stock-based compensation expense of $20,090 and $81,168 for the nine months ended September 30, 2012 and 2011, respectively. The following table summarizes the effect of this stock-based compensation expense within each of the line items of our costs and expenses within our Consolidated Statements of Operations:

 

    For the Nine Months Ended, September 30,  
    2012     2011  
Research and development   $ 27,759     $ 36,951  
Selling and marketing     24,659       40,192  
General and administrative     64,398       36,546  
Total stock-based compensation expense   $ 116,816     $ 113,689  
Liabilities accounted for at fair value on a recurring basis
          Fair value measurements at September 30, 2012 using:  
    September 30, 2012     Quoted prices in active markets   (Level 1)     Significant other observable inputs
(Level 2)
    Significant unobservable inputs
(Level 3)
 
Series D Common Stock Purchase Warrants     267,566       —         —         267,566  
    $ 267,566     $ —       $ —       $ 267,566  
Fair Value Reclassification
    January 1, 2012     Change in Fair Value     Reclassified to Equity     September 30, 2012  
Series C Common Stock Purchase Warrants   $ 205,353     $ (72,688 )   $ (132,665 )   $ —    
Series D Common Stock Purchase Warrants     231,200       36,366       —         267,566  
    $ 436,553     $ (36,322 )   $ (132,665 )   $ 267,566  

 

The following table sets forth the Company’s financial liabilities that were accounted for at fair value on a recurring basis as of December 31, 2011.

    January 1, 2011     Change in Fair Value     December 31, 2011  
Series C Common Stock Purchase Warrants   $ —       $ 205,353     $ 205,353  
Series D Common Stock Purchase Warrants     —         231,200       231,200  
    $ —       $ 436,553     $ 436,553  
Assumptions for the binomial pricing model
                Warrants revalued at
April 5, 2012
 
Assumptions   April 8, 2011     June 20, 2011     April 8, 2011     June 20, 2011  
Expected term (in months)     36.0       36.0       24.0       24.0  
Expected volatility     118.5%       118.5%       100%       100%  
Risk-free interest rate     0.625%       0.625%       0.75%       0.75%  
Exercise price   $ 2.13     $ 2.13     $ 2.13     $ 2.13  
Fair value per warrant   $ 0.70     $ 0.62     $ 0.15     $ 0.15  

 

The assumptions for the binomial pricing model are represented in the table below for the warrants issued in the Series D private placement reflected on a per share common stock equivalent basis.

Assumptions   November 10, 2011     Warrants revalued at September 30, 2012  
Expected term (in months)     60.0       50.0  
Expected volatility     104.5%       146.4%  
Risk-free interest rate     0.875%       0.4375%  
Exercise price   $ 0.81     $ 0.40  
Fair value per warrant   $ 0.54     $ 0.26