Consolidated Balance Sheets - USD ($)
|
Dec. 31, 2015 |
Dec. 31, 2014 |
| Current assets: |
|
|
| Cash and cash equivalents |
$ 24,023,000
|
$ 105,256,000
|
| Marketable securities |
39,934,000
|
0
|
| Prepaid expenses and other current assets |
3,213,000
|
2,255,000
|
| Total current assets |
67,170,000
|
107,511,000
|
| Property and equipment, net |
489,000
|
33,000
|
| Restricted cash |
270,000
|
200,000
|
| Other assets |
45,000
|
|
| Total assets |
67,974,000
|
107,744,000
|
| Current liabilities: |
|
|
| Accounts payable |
1,208,000
|
765,000
|
| Accrued expenses |
4,954,000
|
3,478,000
|
| Total current liabilities |
6,162,000
|
4,243,000
|
| Other long term liabilities |
88,000
|
|
| Total liabilities |
$ 6,250,000
|
$ 4,243,000
|
| Commitments and contingencies (Note 9) |
|
|
| Stockholders' equity: |
|
|
| Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued or outstanding |
|
|
| Common stock, $0.001 par value; 200,000,000 shares authorized; 22,597,144 and 22,382,340 shares issued and outstanding at December 31, 2015 and December 31, 2014, respectively |
$ 23,000
|
$ 22,000
|
| Additional paid-in capital |
193,194,000
|
189,830,000
|
| Accumulated other comprehensive loss |
(55,000)
|
|
| Accumulated deficit |
(131,438,000)
|
(86,351,000)
|
| Total stockholders' equity |
61,724,000
|
103,501,000
|
| Total liabilities and stockholders' equity |
$ 67,974,000
|
$ 107,744,000
|