| Balance Sheet Details | 
4. Balance Sheet
Details 
Inventory
consists of the following: 
  
|  |  |  |  |  |  |  |  |  |  
|  |  | December 31, |  |  
|  |  | 2012 |  |  | 2011 |  |  
| Work-in-process |  | $ | 3,233 |  |  | $ | 3,641 |  |  
| Finished goods |  |  | 6,658 |  |  |  | 4,441 |  |  
|  |  |   |   |  |  |   |   |  |  
|  |  | $ | 9,891 |  |  | $ | 8,082 |  |  
|  |  |   |   |  |  |   |   |  |  
Property and
equipment consist of the following: 
  
|  |  |  |  |  |  |  |  |  |  |  |  
|  |  | 
Useful Life (in Years) |  | December 31, |  |  
|  |  |  | 2012 |  |  | 2011 |  |  
| Furniture and
fixtures |  | 5 |  | $ | 355 |  |  | $ | 305 |  |  
| Machinery and
equipment |  | 3 - 5 |  |  | 8,331 |  |  |  | 6,875 |  |  
| Masks and production
equipment |  | 2 |  |  | 4,894 |  |  |  | 3,249 |  |  
| Software |  | 3 |  |  | 736 |  |  |  | 558 |  |  
| Leasehold
improvements |  | 4 - 5 |  |  | 829 |  |  |  | 489 |  |  
| Construction in
progress |  | N/A |  |  | 20 |  |  |  | 6 |  |  
|  |  |  |  |   |   |  |  |   |   |  |  
|  |  |  |  |  | 15,165 |  |  |  | 11,482 |  |  
| Less accumulated
depreciation and amortization |  |  |  |  | (8,299 | ) |  |  | (5,988 | ) |  
|  |  |  |  |   |   |  |  |   |   |  |  
|  |  |  |  | $ | 6,866 |  |  | $ | 5,494 |  |  
|  |  |  |  |   |   |  |  |   |   |  |  
  
Intangible
assets consist of the following: 
  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Weighted Average
 Amortization
 Period
 (in
Years)
 |  |  | December 31, |  |  
|  |  |  | 2012 |  |  | 2011 |  |  
| Licensed
technology |  |  | 3 |  |  | $ | 1,865 |  |  | $ | 1,865 |  |  
| Less accumulated
amortization |  |  |  |  |  |  | (1,590 | ) |  |  | (844 | ) |  
|  |  |  |  |  |  |   |   |  |  |   |   |  |  
|  |  |  |  |  |  | $ | 275 |  |  | $ | 1,021 |  |  
|  |  |  |  |  |  |   |   |  |  |   |   |  |  
The following
table presents future amortization of the Company’s
intangible assets at December 31, 2012: 
  
|  |  |  |  |  |  
|  |  | Amortization |  |  
| 2013 |  | $ | 275 |  |  
|  |  |   |   |  |  
| Total |  | $ | 275 |  |  
|  |  |   |   |  |  
Deferred
revenue and deferred profit consist of the following: 
  
|  |  |  |  |  |  |  |  |  |  
|  |  | December 31, |  |  
|  |  | 2012 |  |  | 2011 |  |  
| Deferred
revenue—rebates |  | $ | 23 |  |  | $ | 190 |  |  
| Deferred
revenue—distributor transactions |  |  | 3,735 |  |  |  | 5,606 |  |  
| Deferred cost of
revenue—distributor transactions |  |  | (1,469 | ) |  |  | (1,767 | ) |  
|  |  |   |   |  |  |   |   |  |  
|  |  | $ | 2,289 |  |  | $ | 4,029 |  |  
|  |  |   |   |  |  |   |   |  |  
Accrued
expenses consist of the following: 
  
|  |  |  |  |  |  |  |  |  |  
|  |  | December 31, |  |  
|  |  | 2012 |  |  | 2011 |  |  
| Accrued technology license
payments |  | $ | 2,996 |  |  | $ | 2,794 |  |  
| Accrued professional
fees |  |  | 386 |  |  |  | 203 |  |  
| Accrued export compliance
costs |  |  | 6 |  |  |  | 750 |  |  
| Other |  |  | 1,633 |  |  |  | 800 |  |  
|  |  |   |   |  |  |   |   |  |  
|  |  | $ | 5,021 |  |  | $ | 4,547 |  |  
|  |  |   |   |  |  |   |   |  |  
Other long-term
liabilities consist of the following: 
  
|  |  |  |  |  |  |  |  |  |  
|  |  | December 31, |  |  
|  |  | 2012 |  |  | 2011 |  |  
| Accrued technology license
payments |  | $ | — |  |  | $ | 371 |  |  
| Deferred rent |  |  | 215 |  |  |  | 248 |  |  
| Other |  |  | 581 |  |  |  | 236 |  |  
|  |  |   |   |  |  |   |   |  |  
|  |  | $ | 796 |  |  | $ | 855 |  |  
|  |  |   |   |  |  |   |   |  |  |