|
Concentration of Risk, Segment and Geographic Information (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Sep. 30, 2013
|
Jun. 30, 2013
|
Mar. 31, 2013
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2013
Segment
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Number of operating segments | 1 | ||||||||||
| Revenues | $ 12,535 | $ 6,312 | $ 7,151 | $ 9,453 | $ 7,391 | $ 7,251 | $ 9,275 | $ 9,865 | $ 35,451 | $ 33,782 | $ 58,196 |
|
United States [Member]
|
|||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenues | 19,955 | 14,134 | 20,447 | ||||||||
|
Europe [Member]
|
|||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenues | 15,396 | 18,454 | 35,718 | ||||||||
|
Asia Pacific [Member]
|
|||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenues | $ 100 | $ 1,194 | $ 2,031 | ||||||||
|
Revenues [Member] | Customer Concentration Risk [Member]
|
|||||||||||
| Concentration Risk [Line Items] | |||||||||||
| Number of major customers | 3 | 2 | 2 | ||||||||
|
Revenues [Member] | Customer Concentration Risk [Member] | Customer 1 [Member]
|
|||||||||||
| Concentration Risk [Line Items] | |||||||||||
| Concentration risk, percentage (in hundredths) | 43.00% | 47.00% | 61.00% | ||||||||
|
Revenues [Member] | Customer Concentration Risk [Member] | Customer 2 [Member]
|
|||||||||||
| Concentration Risk [Line Items] | |||||||||||
| Concentration risk, percentage (in hundredths) | 26.00% | 33.00% | 32.00% | ||||||||
|
Revenues [Member] | Customer Concentration Risk [Member] | Customer 3 [Member]
|
|||||||||||
| Concentration Risk [Line Items] | |||||||||||
| Concentration risk, percentage (in hundredths) | 20.00% | ||||||||||
|
Accounts Receivable [Member] | Customer Concentration Risk [Member]
|
|||||||||||
| Concentration Risk [Line Items] | |||||||||||
| Number of major customers | 2 | 2 | |||||||||
|
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer 1 [Member]
|
|||||||||||
| Concentration Risk [Line Items] | |||||||||||
| Concentration risk, percentage (in hundredths) | 73.00% | 58.00% | |||||||||
|
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer 2 [Member]
|
|||||||||||
| Concentration Risk [Line Items] | |||||||||||
| Concentration risk, percentage (in hundredths) | 13.00% | 35.00% | |||||||||