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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Current assets:    
Cash and cash equivalents $ 20,096 $ 24,289
Marketable securities available-for-sale 171,584 57,126
Accounts and other receivables 783 1,342
Prepaid expenses and other current assets 4,633 6,842
Total current assets 197,096 89,599
Property and equipment, net 16,622 17,174
Goodwill 2,213 1,971
Restricted cash 626 602
Other assets 1,270 334
Total assets 217,827 109,680
Current liabilities:    
Accounts payable 2,243 3,796
Accrued research and development 3,079 5,048
Accrued liabilities 7,567 11,192
Total current liabilities 12,889 20,036
Other long-term liabilities 504 443
Total liabilities 13,393 20,479
Commitments and contingencies (Note 4)
Stockholders’ equity:    
Preferred stock: $0.001 par value; 5,000 shares authorized at September 30, 2017 and December 31, 2016; no shares issued and outstanding at September 30, 2017 and December 31, 2016
Common stock: $0.001 par value; 139,000 and 69,500 shares authorized at September 30, 2017 and December 31, 2016, respectively; 60,587 and 38,599 shares issued and outstanding at September 30, 2017 and December 31, 2016, respectively 61 39
Additional paid-in capital 1,085,433 904,957
Accumulated other comprehensive loss (1,156) (3,624)
Accumulated deficit (879,904) (812,171)
Total stockholders’ equity 204,434 89,201
Total liabilities and stockholders’ equity $ 217,827 $ 109,680