|
Summary of Geographic Information Related to Company's Total Revenues and Long Lived Assets (Detail) (USD $)
In Thousands, unless otherwise specified
|
3 Months Ended |
9 Months Ended |
|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Dec. 31, 2011
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
|
|
| Revenue |
$ 1,464 |
$ 1,646 |
$ 4,335 |
$ 4,797 |
|
| Percentage of total revenue |
|
|
100.00% |
100.00% |
|
| Long-lived assets |
7,247 |
|
7,247 |
|
8,276 |
| Percentage of long-lived assets |
100.00% |
|
100.00% |
|
100.00% |
|
United States
|
|
|
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
|
|
| Revenue |
|
|
4,210 |
4,797 |
|
| Percentage of total revenue |
|
|
97.00% |
100.00% |
|
| Long-lived assets |
7,223 |
|
7,223 |
|
8,276 |
| Percentage of long-lived assets |
100.00% |
|
100.00% |
|
100.00% |
|
Canada
|
|
|
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
|
|
| Revenue |
|
|
125 |
|
|
| Percentage of total revenue |
|
|
3.00% |
0.00% |
|
| Long-lived assets |
24 |
|
24 |
|
|
| Percentage of long-lived assets |
0.00% |
|
0.00% |
|
0.00% |
|
Total International
|
|
|
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
|
|
| Revenue |
|
|
125 |
|
|
| Percentage of total revenue |
|
|
3.00% |
0.00% |
|
| Long-lived assets |
$ 24 |
|
$ 24 |
|
|
| Percentage of long-lived assets |
0.00% |
|
0.00% |
|
0.00% |