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Geographic Information And Major Customers (Long-Lived Assets By Geographic Area) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 14,458	$ 11,010
Long-lived assets percentage	100.00%	100.00%
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	9,624	8,616
Long-lived assets percentage	67.00%	78.00%
India [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	2,391	2,120
Long-lived assets percentage	16.00%	19.00%
International, Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 2,443	$ 274
Long-lived assets percentage	17.00%	3.00%

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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