Concentrations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 7,028	$ 8,587	$ 15,531	$ 14,724
North And South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	4,718	6,251	10,340	9,611
Europe, Middle East, And Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,905	1,713	4,012	3,770
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 405	$ 623	$ 1,179	$ 1,343
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues, percentage	66.00%	71.00%	64.00%	63.00%
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues, percentage	34.00%	29.00%	36.00%	37.00%
One Customer [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues, percentage				16.00%
Two Customers [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues, percentage	33.00%	33.00%	26.00%