XML 21 R29.htm IDEA: XBRL DOCUMENT v2.4.1.9
Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Inventories on a FIFO basis [Abstract]    
Raw materials $ 8,743us-gaap_InventoryRawMaterialsNetOfReserves $ 8,244us-gaap_InventoryRawMaterialsNetOfReserves
Work in process 12,167us-gaap_InventoryWorkInProcessNetOfReserves 14,073us-gaap_InventoryWorkInProcessNetOfReserves
Finished manufactured goods 21,053us-gaap_InventoryFinishedGoodsNetOfReserves 20,748us-gaap_InventoryFinishedGoodsNetOfReserves
Total inventories $ 41,963us-gaap_InventoryNet $ 43,065us-gaap_InventoryNet