Segment Data (Tables)

12 Months Ended

Apr. 30, 2013

The segment results are as follows (in thousands):

	Year Ended April 30,

	2013		2012		2011
Revenue:
UAS	$	194,276	$	273,728	$	249,769
EES		45,876		51,280		42,734

Total		240,152		325,008		292,503
Cost of sales:
UAS		115,194		157,663		150,256
EES		32,422		38,012		25,096

Total		147,616		195,675		175,352

Gross margin:
UAS		79,082		116,065		99,513
EES		13,454		13,268		17,638

Total		92,536		129,333		117,151

Selling, general and administrative		51,520		55,280		47,431
Research and development		37,214		30,977		35,769

Income from operations		3,802		43,076		33,951
Interest income		726		462		277
Other income		6,245		—		—

Income before income taxes	$	10,773	$	43,538	$	34,228

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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