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Basis of Presentation (Tables)
3 Months Ended
Jun. 30, 2012
Basis of Presentation [Abstract]  
Changes in the fair value of warrants
The changes in the fair value of warrants is as follows:

   
Three Months Ended
 
   
June 30,
 
   
2012
  
2011
 
Balance at the beginning of the period
 $19  $26 
Change in fair value recorded in earnings
  (1)  (12)
Balance at the end of the period
 $18  $14 
Valuation assumptions to estimate the fair value of options
The Company utilized the following valuation assumptions to estimate the fair value of options that would have been granted for the three month periods ended June 30, 2012 and 2011, respectively.  Some 7,500 options were granted in the three month period ended June 30, 2012.  The valuation assumptions are included for comparison only.

STOCK OPTIONS:
 
2012
  
2011
 
Expected life (years)
  6.0   6.0 
Volatility
  10%  77%
Risk-free interest rate
  0.69%  1.76%
Dividend yield
  0%  0%
Valuation assumptions to estimate the fair value of ESPP
ESPP awards are valued using the Black-Scholes pricing model with expected volatility calculated using a six-month historical volatility.   No ESPP awards were made in the three month period ended June 30, 2012.  The valuation assumptions are included for comparison only.

ESPP:
 
2012
  
2011
 
Expected life (years)
  0.5   0.5 
Volatility
  6%  43%
Risk-free interest rate
  0.09%  0.03%
Dividend yield
  0%  0%
Stock option and warrant activity
A summary of the stock option and warrant activity during the quarter ended June 30, 2012 is as follows:

         
Weighted
    
      
Weighted
  
Average
    
      
Average
  
Remaining
  
Aggregate
 
      
Exercise
  
Contractual
  
Intrinsic
 
   
Shares
  
Price
  
Term (in Years)
  
Value
 
Beginning outstanding
  127,833  $19.24       
Granted
  7,500  $3.60       
Expired
  -  $-       
                
Ending outstanding
  135,333  $18.38   5.86  $- 
Ending vested and expected to vest
  135,264  $19.52   5.86  $- 
Ending exercisable
  122,491  $19.52   5.60  $- 
Stock options and warrants outstanding
The following table summarizes information with respect to stock options and warrants outstanding as of June 30, 2012:

                  
Weighted
 
         
Weighted
        
Average
 
      
Number
  
Average
     
Number
  
Exercise
 
      
Outstanding
  
Remaining
  
Weighted
  
Exercisable
  
Price
 
      
As of
  
Contractual
  
Average
  
As of
  
As of
 
Range of
  
June 30,
  
Term
  
Exercise
  
June 30,
  
June 30,
 
Exercise Prices
  
2012
  
(in years)
  
Price
  
2012
  
2012
 
$2.90  $6.00   15,830   9.28  $4.32   8,555  $4.32 
 6.25   11.70   54,435   6.39   11.51   48,937   11.51 
 17.80   28.10   49,648   5.15   21.73   49,623   21.73 
 30.56   61.80   14,506   2.83   43.48   14,498   43.48 
 61.94   151.94   854   2.17   89.52   832   89.52 
 152.21   285.00   58   1.14   174.00   46   174.00 
 286.72   300.27   2   0.00   293.50   -   - 
                           
$2.90  $300.27   135,333   5.86  $19.52   122,491  $19.52 
Unvested RSU activity
The following table summarizes the Company's unvested RSU activity for the three months ended June 30, 2012:

  
Number
  
Weighted Average
 
  
of
  
Grant Date
 
  
Shares
  
Fair Value
 
Balance March 31, 2012
  236,541  $2.11 
Granted
  39,000  $3.40 
Forfeited
  -  $- 
Vested
  (37,247) $1.79 
Balance, June 30, 2012
  238,294  $2.37