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