Balance Sheets - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Current assets: |
|
|
| Cash and cash equivalents |
$ 5,069
|
$ 13,450
|
| Marketable securities, available-for-sale |
30,552
|
23,258
|
| Restricted cash |
3,311
|
3,246
|
| Receivables and other assets |
8,935
|
4,544
|
| Total current assets |
47,867
|
44,498
|
| Long-term investments |
2,046
|
2,052
|
| Property and equipment, net |
1,173
|
1,873
|
| Intangible assets, net |
810
|
1,300
|
| Other assets |
388
|
191
|
| Total assets |
52,284
|
49,914
|
| Current liabilities: |
|
|
| Accounts payable and accrued expenses |
4,127
|
3,912
|
| Deferred revenue |
3,018
|
250
|
| Total current liabilities |
7,145
|
4,162
|
| Long-term liabilities: |
|
|
| Deferred rent |
0
|
359
|
| Commitments and contingencies (Notes 6 and 7) |
|
|
| Stockholders’ equity: |
|
|
| Preferred stock, $0.01 par value, 5,000 shares authorized, none issued and outstanding |
0
|
0
|
| Common stock, $0.01 par value, 160,000 shares authorized, 11,052 and 9,154 shares issued and outstanding at December 31, 2016 and 2015, respectively |
111
|
92
|
| Additional paid-in capital |
458,881
|
450,166
|
| Accumulated deficit |
(413,878)
|
(404,905)
|
| Accumulated other comprehensive income |
25
|
40
|
| Total stockholders’ equity |
45,139
|
45,393
|
| Total liabilities and stockholders’ equity |
$ 52,284
|
$ 49,914
|