Summary of Significant Accounting Policies (Details 7) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Other comprehensive income (loss):
Balance at the beginning of the period	$ 383	$ 3,022
Foreign currency translation adjustment	(700)	(391)
Unrealized holding losses on corporate debt securities		(99)
Balance at the end of the period	(317)	2,532
Foreign Currency
Other comprehensive income (loss):
Balance at the beginning of the period	383	1,628
Foreign currency translation adjustment	(700)	(391)
Balance at the end of the period	(317)	1,237
Available for sale securities
Other comprehensive income (loss):
Balance at the beginning of the period		1,394
Unrealized holding losses on corporate debt securities		(99)
Balance at the end of the period		$ 1,295

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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