| Balance Sheet Details | 
Balance Sheet Details Cash and cash equivalents and investments consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | December 31, 2015 |   | December 31, 2014
 |  
|   | (in thousands) |  
| Cash and cash equivalents | $ | 67,956 | 
 |   | $ | 20,696 | 
 |  
| Short-term investments | 43,300 | 
 |   | 48,399 | 
 |  
| Long-term investments | 19,242 | 
 |   | 10,256 | 
 |  
|   | $ | 130,498 | 
 |   | $ | 79,351 | 
 | 
 Inventory consists of the following: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | December 31, 2015 |   | December 31, 2014
 |  
|   | (in thousands) |  
| Work-in-process | $ | 15,713 | 
 |   | $ | 4,169 | 
 |  
| Finished goods | 16,730 | 
 |   | 6,689 | 
 |  
|   | $ | 32,443 | 
 |   | $ | 10,858 | 
 | 
 Property and equipment consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  |  |  
|   | Useful Life (in Years) |   | December 31, 2015 |   | December 31, 2014
 |  
|   |   |   | (in thousands) |  
| Furniture and fixtures | 5 |   | $ | 2,458 | 
 |   | $ | 735 | 
 |  
| Machinery and equipment | 3 -5 |   | 23,679 | 
 |   | 12,695 | 
 |  
| Masks and production equipment | 2 |   | 8,062 | 
 |   | 8,672 | 
 |  
| Software | 3 |   | 3,017 | 
 |   | 905 | 
 |  
| Leasehold improvements | 4 -5 |   | 9,573 | 
 |   | 4,451 | 
 |  
| Construction in progress | N/A |   | 62 | 
 |   | 276 | 
 |  
|   |   |   | 46,851 | 
 |   | 27,734 | 
 |  
| Less accumulated depreciation and amortization |   |   | (24,993 | ) |   | (15,293 | ) |  
|   |   |   | $ | 21,858 | 
 |   | $ | 12,441 | 
 | 
 Intangible assets, net consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  |  |  
|   | Weighted Average Amortization Period (in Years) |   | December 31, 2015 |   | December 31, 2014
 |  
|   |   |   | (in thousands) |  
| Licensed technology | 3 |   | $ | 2,921 | 
 |   | $ | 2,821 | 
 |  
| Developed technology | 7 |   | 47,000 | 
 |   | 2,700 | 
 |  
| Trademarks and trade names | 7 |   | 1,700 | 
 |   | — | 
 |  
| Customer relationships | 5 |   | 4,700 | 
 |   | — | 
 |  
| Backlog | 1 |   | 24,200 | 
 |   | — | 
 |  
| Less accumulated amortization |   |   | (32,366 | ) |   | (2,435 | ) |  
|   |   |   | 48,155 | 
 |   | 3,086 | 
 |  
| In-process research and development |   |   | 3,200 | 
 |   | 7,300 | 
 |  
|   |   |   | $ | 51,355 | 
 |   | $ | 10,386 | 
 | 
 
The following table presents future amortization of the Company’s intangible assets at December 31, 2015:
 
|  |  
|  |  |  |  |  
|   | Amortization (in thousands) |  
| 2016 | $ | 8,043 | 
 |  
| 2017 | 7,931 | 
 |  
| 2018 | 7,914 | 
 |  
| 2019 | 7,897 | 
 |  
| 2020 | 7,270 | 
 |  
| Thereafter | 9,100 | 
 |  
| Total | $ | 48,155 | 
 | 
 Deferred revenue and deferred profit consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | December 31, 2015 |   | December 31, 2014
 |  
|   | (in thousands) |  
| Deferred revenue—rebates | $ | 118 | 
 |   | $ | 21 | 
 |  
| Deferred revenue—distributor transactions | 5,695 | 
 |   | 5,585 | 
 |  
| Deferred cost of net revenue—distributor transactions | (1,747 | ) |   | (1,994 | ) |  
|   | $ | 4,066 | 
 |   | $ | 3,612 | 
 | 
 Accrued price protection liability consists of the following activity: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | Year Ended December 31, |  
|   | 2015 |   | 2014 |  
|   | (in thousands) |  
| Beginning balance | $ | 10,018 | 
 |   | $ | 15,017 | 
 |  
| Additional liability from acquisition | 3,486 | 
 |   | — | 
 |  
| Charged as a reduction of revenue | 39,304 | 
 |   | 22,466 | 
 |  
| Reversal of unclaimed rebates | (158 | ) |   | (413 | ) |  
| Payments | (32,624 | ) |   | (27,052 | ) |  
| Ending balance | $ | 20,026 | 
 |   | $ | 10,018 | 
 | 
 Accrued expenses and other current liabilities consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | December 31, 2015 |   | December 31, 2014
 |  
|   | (in thousands) |  
| Accrued technology license payments | $ | 3,000 | 
 |   | $ | 3,000 | 
 |  
| Accrued professional fees | 1,196 | 
 |   | 422 | 
 |  
| Accrued restructuring | 1,633 | 
 |   | — | 
 |  
| Accrued litigation costs | 534 | 
 |   | 560 | 
 |  
| Accrued royalty | 2,042 | 
 |   | 195 | 
 |  
| Other | 6,963 | 
 |   | 1,371 | 
 |  
|   | $ | 15,368 | 
 |   | $ | 5,548 | 
 |  |