| Quarterly Financial Data (Unaudited) | 
        
   
    Note 16 — Quarterly Financial Data (Unaudited):  
   A capsule summary of the Company’s unaudited quarterly results for fiscal 2012 and fiscal 2011 is
   presented below:  
     
   
   
   
   |   | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
    
   
   | 
    Year ended March 31, 2012 
    | 
     | 
   
First Quarter
 | 
     | 
     | 
   Second Quarter | 
     | 
     | 
   
Third Quarter
 | 
     | 
     | 
   Fourth Quarter | 
     | 
     | 
   
Total Year
 | 
     | 
    
   
   
   
   | 
    Net sales 
    | 
     | 
   $ | 
   25,012 | 
     | 
     | 
   $ | 
   33,595 | 
     | 
     | 
   $ | 
   24,329 | 
     | 
     | 
   $ | 
   20,250 | 
     | 
     | 
   $ | 
   103,186 | 
     | 
    
   
   | 
    Gross profit 
    | 
     | 
     | 
   8,197 | 
     | 
     | 
     | 
   12,800 | 
     | 
     | 
     | 
   6,462 | 
     | 
     | 
     | 
   5,176 | 
     | 
     | 
     | 
   32,635 | 
     | 
    
   
   | 
    Provision for income taxes 
    | 
     | 
     | 
   1,481 | 
     | 
     | 
     | 
   2,766 | 
     | 
     | 
     | 
   959 | 
     | 
     | 
     | 
   918 | 
     | 
     | 
     | 
   6,124 | 
     | 
    
   
   | 
    Net income 
    | 
     | 
     | 
   3,016 | 
     | 
     | 
     | 
   5,468 | 
     | 
     | 
     | 
   1,640 | 
     | 
     | 
     | 
   429 | 
     | 
     | 
     | 
   10,553 | 
     | 
    
   
   | 
    Per share: 
    | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
    
   
   | 
    Net income: 
    | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
    
   
   | 
    Basic 
    | 
     | 
   $ | 
   .30 | 
     | 
     | 
   $ | 
   .55 | 
     | 
     | 
   $ | 
   .16 | 
     | 
     | 
   $ | 
   .04 | 
     | 
     | 
   $ | 
   1.06 | 
     | 
    
   
   | 
    Diluted 
    | 
     | 
   $ | 
   .30 | 
     | 
     | 
   $ | 
   .55 | 
     | 
     | 
   $ | 
   .16 | 
     | 
     | 
   $ | 
   .04 | 
     | 
     | 
   $ | 
   1.06 | 
     | 
    
   
   | 
    Market price range of common stock 
    | 
     | 
   $ | 
   17.74-26.30 | 
     | 
     | 
   $ | 
   15.00-21.24 | 
     | 
     | 
   $ | 
   14.36-24.98 | 
     | 
     | 
   $ | 
   19.26-25.04 | 
     | 
     | 
   $ | 
   14.36-26.30 | 
     | 
    
   
    
     
   
   
   
   |   | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
    
   
   | 
    Year ended March 31, 2011 
    | 
     | 
   
First Quarter
 | 
     | 
     | 
   Second Quarter | 
     | 
     | 
   
Third Quarter
 | 
     | 
     | 
   Fourth Quarter | 
     | 
     | 
   
Total Year
 | 
     | 
    
   
   
   
   | 
    Net sales 
    | 
     | 
   $ | 
   13,351 | 
     | 
     | 
   $ | 
   15,723 | 
     | 
     | 
   $ | 
   19,215 | 
     | 
     | 
   $ | 
   25,946 | 
     | 
     | 
   $ | 
   74,235 | 
     | 
    
   
   | 
    Gross profit 
    | 
     | 
     | 
   3,850 | 
     | 
     | 
     | 
   5,347 | 
     | 
     | 
     | 
   4,751 | 
     | 
     | 
     | 
   7,903 | 
     | 
     | 
     | 
   21,851 | 
     | 
    
   
   | 
    Provision for income taxes 
    | 
     | 
     | 
   414 | 
     | 
     | 
     | 
   780 | 
     | 
     | 
     | 
   397 | 
     | 
     | 
     | 
   1,295 | 
     | 
     | 
     | 
   2,886 | 
     | 
    
   
   | 
    Net income 
    | 
     | 
     | 
   878 | 
     | 
     | 
     | 
   1,557 | 
     | 
     | 
     | 
   759 | 
     | 
     | 
     | 
   2,680 | 
     | 
     | 
     | 
   5,874 | 
     | 
    
   
   | 
    Per share: 
    | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
    
   
   | 
    Net income: 
    | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
     | 
    
   
   | 
    Basic 
    | 
     | 
   $ | 
   .09 | 
     | 
     | 
   $ | 
   .16 | 
     | 
     | 
   $ | 
   .08 | 
     | 
     | 
   $ | 
   .27 | 
     | 
     | 
   $ | 
   .59 | 
     | 
    
   
   | 
    Diluted 
    | 
     | 
   $ | 
   .09 | 
     | 
     | 
   $ | 
   .16 | 
     | 
     | 
   $ | 
   .08 | 
     | 
     | 
   $ | 
   .27 | 
     | 
     | 
   $ | 
   .59 | 
     | 
    
   
   | 
    Market price range of common stock 
    | 
     | 
   $ | 
   13.50-19.60 | 
     | 
     | 
   $ | 
   13.52-17.99 | 
     | 
     | 
   $ | 
   14.75-21.00 | 
     | 
     | 
   $ | 
   19.08-24.58 | 
     | 
     | 
   $ | 
   13.50-24.58 | 
     | 
    
   
    
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