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Select Balance Sheet Details - Inventories, Net (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Balance Sheet Related Disclosures [Abstract]
Raw materials, Gross	$ 4,537us-gaap_InventoryRawMaterials	$ 5,020us-gaap_InventoryRawMaterials
Work-in-process, Gross	828us-gaap_InventoryWorkInProcess	1,032us-gaap_InventoryWorkInProcess
Finished goods, Gross	56,795us-gaap_InventoryFinishedGoods	57,020us-gaap_InventoryFinishedGoods
Inventory, Gross, Total	62,160us-gaap_InventoryGross	63,072us-gaap_InventoryGross
Finished goods, Reserve for excess and obsolete	(20,388)us-gaap_InventoryValuationReserves	(21,325)us-gaap_InventoryValuationReserves
Inventories, net, Reserve for excess and obsolete	(20,388)us-gaap_InventoryAdjustments	(21,325)us-gaap_InventoryAdjustments
Raw materials, Net	4,537us-gaap_InventoryRawMaterialsNetOfReserves	5,020us-gaap_InventoryRawMaterialsNetOfReserves
Work-in-process, Net	828us-gaap_InventoryWorkInProcessNetOfReserves	1,032us-gaap_InventoryWorkInProcessNetOfReserves
Finished goods, Net	36,407us-gaap_InventoryFinishedGoodsNetOfReserves	35,695us-gaap_InventoryFinishedGoodsNetOfReserves
Inventories, Net	$ 41,772us-gaap_InventoryNet	$ 41,747us-gaap_InventoryNet

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Certain changes made in the current period to the value and amount of inventory reported.

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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Amount of valuation reserve for inventory.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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