Geographic Information (Schedule Of Composition Of The Company's Property And Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	$ 28,272	$ 28,637
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	22,834	22,627
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	4,526	5,221
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	344	411
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	$ 568	$ 378

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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