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Discontinued Operations and Assets Held for Sale (Tables)
12 Months Ended
Mar. 31, 2012
Discontinued Operations and Disposal Groups [Abstract]  
Results of discontinued operations
The results of discontinued operations for the year ended March 31, 2011 are as follows (amounts in thousands):
 
Year ended
 
March 31, 2011
Net sales
$
25,177

Cost of sales
(32,627
)
Operating expenses
(3,676
)
Income tax benefit
909

Net loss from discontinued operations
$
(10,217
)