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Inventories - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]
Finished goods inventory	$ 3,251	$ 4,292
Reserve for inventory obsolescence of consumer electronics and computer devices	$ 0

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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 of valuation reserve for inventory.

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