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Plant Restructuring (table)
12 Months Ended
Mar. 31, 2017
Restructuring And Related Activities [Abstract]  
Schedule of Restructuring and Related Costs [Table Text Block]
Long-LivedOther
SeveranceAssetCosts
PayableImpairmentPayable Total
(In thousands)
Balance March 31, 2014$10$-$-$10
Charge to expense8422642701,376
Cash payments/write offs(137)--(137)
Balance March 31, 20157152642701,249
Charge to expense1625,0655,07510,302
Cash payments/write offs(877)(354)(1,448)(2,679)
Balance March 31, 2016-4,9753,8978,872
Charge to expense1,578(384)6351,829
Cash payments/write offs(1,541)182(4,227)(5,586)
Balance March 31, 2017$37$4,773$305$5,115