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Inventories - Summary of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 250us-gaap_InventoryRawMaterials	$ 173us-gaap_InventoryRawMaterials
Finished goods	628us-gaap_InventoryFinishedGoods	829us-gaap_InventoryFinishedGoods
Inventory gross, Total	878us-gaap_InventoryGross	1,002us-gaap_InventoryGross
Allowance for excess inventory quantities	(52)us-gaap_InventoryValuationReserves	(52)us-gaap_InventoryValuationReserves
Inventories net, Total	$ 826us-gaap_InventoryNet	$ 950us-gaap_InventoryNet

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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.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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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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Amount of valuation reserve for inventory.

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