Schedule Of Long-Lived Asset By Geographic Areas (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 29,694	$ 27,194
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	12,453	10,273
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	4,375	2,132
Americas Excluding United States and Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	0	28
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	657	914
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	10,786	11,905
APAC Excluding China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 1,423	$ 1,942