Other Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Comprised balance of other accrued liabilities
Deferred revenue	$ 2,815	$ 593
Accrued professional fees	2,646	1,394
Amounts refundable to end customers		582
Deferred rent obligations	962	734
Employee related	402	379
Other (includes ESPP contributions of $349 and $1,106 at September 30, 2012 and December 31, 2011, respectively)	2,412	3,957
Total other accrued liabilities	$ 9,237	$ 7,639