Balance Sheets Details (Inventory) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Schedule of Inventory Components
Raw materials	$ 577	$ 763
Work in process	109	31
Finished goods	1,359	693
Inventory, net	$ 2,045	$ 1,487

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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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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