Changes in Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Changes in accumulated other comprehensive Income
Balance at the beginning of the period	$ 195	$ 392	$ 345	$ 396
Other comprehensive income (loss) before reclassifications	50	(25)	(100)	(36)
Amounts reclassified from accumulated other comprehensive income				7
Balance at the end of the period	245	367	245	367
Foreign Currency Translation Adjustment
Changes in accumulated other comprehensive Income
Balance at the beginning of the period	195	392	345	403
Other comprehensive income (loss) before reclassifications	50	(25)	(100)	(36)
Balance at the end of the period	245	367	245	367
Unrealized Gain (Loss) Short-term Investments Available For Sale
Changes in accumulated other comprehensive Income
Balance at the beginning of the period				(7)
Amounts reclassified from accumulated other comprehensive income				$ 7

- 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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