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Segment Disclosure
 6 Months Ended
Oct. 29, 2011
Segment Disclosure [Abstract]  
Segment Disclosure
Note 6. Segment Disclosure

We have organized our business into five business units which meet the definition of reportable segments under ASC 280-10, Segment Reporting: the Commercial segment, the Live Events segment, the Schools and Theatres segment, the Transportation segment, and the International segment.

Our Commercial segment primarily consists of sales of our video, Galaxy®, Fuelight™ and Valo™ product lines to resellers (primarily sign companies), outdoor advertisers, national retailers, quick-serve restaurants, casinos and petroleum retailers.  Our Live Events segment primarily consists of sales of integrated scoring and video display systems to college and professional sports facilities and convention centers and sales of our mobile PST display technology to video rental organizations and other live events type venues.  Our Schools and Theatres segment primarily consists of sales of scoring systems, Galaxy® displays and video display systems to primary and secondary education facilities and sales of our Vortek® automated rigging systems for theatre applications.  Our Transportation segment primarily consists of sales of our Vanguard® and Galaxy® product lines to governmental transportation departments, airlines and other transportation related customers.  Finally, our International segment primarily consists of sales of all product lines to geographies outside the United States and Canada.

Segment reports present results through contribution margin, which is comprised of gross profit less selling costs. Segment profit excludes general and administration expense, product development expense, interest income and expense, non-operating income and income tax expense.  Assets are not allocated to the segments. Depreciation and amortization, excluding that portion related to non-allocated costs, are allocated to each segment based on various financial measures.  In general, segments follow the same accounting policies as those described in Note 1.  Costs of domestic field sales and services infrastructure, including most field administrative staff, are allocated to the Commercial, Live Events, and Schools and Theatres segments based on cost of sales.  Shared manufacturing, building and utilities and procurement costs are allocated based on payroll dollars, square footage and various other financial measures.

We do not maintain information on sales by products and, therefore, disclosure of such information is not practical.
 
The following table sets forth certain financial information for each of our five operating segments for the periods indicated:

   
Three Months Ended
  
Six Months Ended
 
   
October 29,
  
October 30,
  
October 29,
  
October 30,
 
   
2011
  
2010
  
2011
  
2010
 
              
Net sales:
            
    Commercial
 $43,704  $31,879  $76,407  $55,010 
    Live Events
  46,664   44,025   85,181   84,708 
    Schools & Theatres
  17,239   21,351   35,721   37,999 
    Transportation
  12,439   11,482   23,939   19,028 
    International
  15,864   18,182   33,359   30,676 
   $135,910  $126,919  $254,607  $227,421 
                  
Contribution margin:
                
    Commercial
 $7,449  $4,861  $11,987  $6,849 
    Live Events
  6,021   6,270   9,429   11,346 
    Schools & Theatres
  1,409   3,482   4,809   6,510 
    Transportation
  2,795   2,938   6,139   4,476 
    International
  870   2,666   3,477   5,287 
    18,544   20,217   35,841   34,468 
                  
Non-allocated operating expenses:
                
    General and administrative
  6,972   5,624   13,436   11,212 
    Product design and development
  5,636   4,561   11,353   9,114 
Operating income
  5,936   10,032   11,052   14,142 
                  
Nonoperating income (expense):
                
    Interest income
  457   383   892   838 
    Interest expense
  (95)  (41)  (171)  (77)
    Other (expense) income, net
  (47)  167   (193)  262 
                  
Income before income taxes
  6,251   10,541   11,580   15,165 
    Income tax expense
  2,292   3,534   4,253   5,715 
Net income
 $3,959  $7,007  $7,327  $9,450 
                  
Depreciation and amortization:
                
    Commercial
 $1,517  $1,661  $3,198  $3,362 
    Live Events
  1,257   1,525   2,568   3,176 
    Schools & Theatres
  581   654   1,220   1,343 
    Transportation
  339   361   700   711 
    International
  166   220   330   446 
    Unallocated corporate depreciation
  499   435   994   891 
   $4,359  $4,856  $9,010  $9,929 

No single geographic area comprises a material amount of net sales or long-lived assets other than the United States.  The following table presents information about us in the United States and elsewhere:


   
United States
  
Others
  
Total
 
Net sales for three months ended:
         
      October 29, 2011
 $117,630  $18,280  $135,910 
      October 30, 2010
  106,412   20,507   126,919 
              
Net sales for six months ended:
            
      October 29, 2011
 $215,728  $38,879  $254,607 
      October 30, 2010
  191,761   35,660   227,421 
              
Long-lived assets at:
            
      October 29, 2011
 $65,025  $1,996  $67,021 
      April 30, 2011
  68,034   1,832   69,866 


We are not economically dependent on a limited number of customers for the sale of our products and services because we have numerous customers world-wide.  We are not economically dependent on a limited number of suppliers for our inventory items because we have numerous suppliers world-wide.