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Note 6 - Inventories - Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 01, 2015
May 25, 2014
Finished goods $ 10,173us-gaap_InventoryFinishedGoods $ 11,111us-gaap_InventoryFinishedGoods
Raw materials 11,090us-gaap_InventoryRawMaterials 10,376us-gaap_InventoryRawMaterials
Work in progress 3,399us-gaap_InventoryWorkInProcess 3,248us-gaap_InventoryWorkInProcess
Total $ 24,662us-gaap_InventoryNet $ 24,735us-gaap_InventoryNet