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Plant Restructuring (table)
12 Months Ended
Mar. 31, 2013
Restructuring And Related Activities [Abstract]  
Schedule of Restructuring and Related Costs [Table Text Block]
    Long-Lived    
    Asset Other  
  Severance Charges Costs  Total
  (In thousands)
         
Balance March 31, 2010$0$250$794$1,044
First-quarter charge to expense 0 0 1 1
Second-quarter charge to expense 1,210 0 0 1,210
Third-quarter charge to expense 109 0 0 109
Cash payments/write offs (889) (250) (283) (1,422)
Fourth-quarter charge to expense 26 0 8 34
Balance March 31, 2011 456 0 520 976
First-quarter charge to expense 54 0 0 54
Second-quarter (credit) charge to expense (19) 0 4 (15)
Cash payments/write offs (454) 0 (524) (978)
Balance March 31, 2012 37 0 0 37
Third-quarter charge to expense 0 1,107 1,403 2,510
Fourth-quarter charge to expense 0 109 878 987
Cash payments/write offs (17) (42) (1,974) (2,033)
Balance March 31, 2013$20$1,174$307$1,501
         
The other costs at March 31, 2013 relate to inventory that is expected to be disposed of in fiscal 2014.