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Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Assets    
Cash and cash equivalents $ 39,696 $ 22,104
Restricted cash 5,357 1,546
Investments 40,977 32,546
Receivables from collaborations 3,325 8,768
Inventory 1,305 500
Prepaid expenses and other current assets 1,524 1,438
Deferred collaboration expense 79 85
Total current assets 92,263 66,987
Investments 9,603 8,926
Property and equipment, net 9,602 9,922
Deferred collaboration expense 170 199
Other assets 1,871 3,813
Total assets 113,509 89,847
Liabilities and Stockholders’ Equity    
Accounts payable 1,844 4,269
Accrued expenses 12,329 10,836
Interest payable 11,587 8,990
Deferred collaboration revenue 1,717 2,022
Senior credit facility 2,997
Non-recourse notes payable 28,463 28,243
Total current liabilities 58,937 54,360
Deferred collaboration revenue 7,592 8,184
Deferred rent 201 244
Lease financing obligation 2,704 2,704
Long-term Line of Credit 19,999 22,777
Stockholders’ equity:    
Preferred stock, $0.001 par value; shares authorized — 5,000; no shares issued and outstanding
Common stock, $0.01 par value: shares authorized — 200,000; shares issued and outstanding — 80,428 in 2017 and 73,782 in 2016 804 738
Additional paid-in capital 620,453 566,913
Accumulated other comprehensive loss (15) (12)
Accumulated deficit (597,166) (566,061)
Total stockholders’ equity 24,076 1,578
Total liabilities and stockholders’ equity $ 113,509 $ 89,847