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INVENTORIES (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Inventories Details    
Raw materials $ 7,997us-gaap_InventoryRawMaterials $ 6,298us-gaap_InventoryRawMaterials
Work in process 3,570us-gaap_InventoryWorkInProcess 2,966us-gaap_InventoryWorkInProcess
Finished goods 5,650us-gaap_InventoryFinishedGoods 4,949us-gaap_InventoryFinishedGoods
Allowance for excess or obsolete inventory 1,506HSKA_AllowanceForExcessOrObsoleteInventory 1,555HSKA_AllowanceForExcessOrObsoleteInventory
Total Inventories $ 15,711us-gaap_InventoryNet $ 12,658us-gaap_InventoryNet