|
CONSOLIDATED BALANCE SHEETS (USD $)
|
Dec. 31, 2014
|
Dec. 31, 2013
|
| Current assets: |
|
|
| Cash and cash equivalents |
$ 33,901,000 |
$ 18,889,000 |
| Short-term investments |
58,774,000 |
82,423,000 |
| Restricted cash |
|
86,000 |
| Prepaid expenses and other current assets |
2,641,000 |
557,000 |
| Total current assets |
95,316,000 |
101,955,000 |
| Property and equipment, net |
2,825,000 |
631,000 |
| Long-term investments |
|
22,344,000 |
| Restricted cash |
203,000 |
|
| Other assets |
305,000 |
331,000 |
| Total assets |
98,649,000 |
125,261,000 |
| Current liabilities: |
|
|
| Accounts payable |
3,216,000 |
2,760,000 |
| Accrued expenses |
5,519,000 |
4,327,000 |
| Liability classified stock-based compensation awards |
469,000 |
717,000 |
| Total current liabilities |
9,204,000 |
7,804,000 |
| Other liabilities |
677,000 |
|
| Liability for shares subject to repurchase |
2,000 |
11,000 |
| Stockholders' equity: |
|
|
| Convertible preferred stock, $0.0001 par value; 5,000 shares authorized, no shares issued and outstanding |
|
|
| Common stock, $0.0001 par value; 100,000 shares authorized, 25,328 and 27,259 shares issued and outstanding at December 31, 2013 and 2014, respectively |
3,000 |
3,000 |
| Additional paid-in capital |
229,770,000 |
205,068,000 |
| Accumulated other comprehensive income |
11,000 |
28,000 |
| Accumulated deficit |
(141,018,000) |
(87,653,000) |
| Total stockholders' equity |
88,766,000 |
117,446,000 |
| Total liabilities and stockholders' equity |
$ 98,649,000 |
$ 125,261,000 |