XML 15 R2.htm IDEA: XBRL DOCUMENT v3.10.0.1
Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Current assets    
Cash and cash equivalents $ 26,246 $ 16,528
Marketable securities 268,115 207,603
Accounts receivable 10,187 1,142
Income tax receivable 804
Prepaid expenses and other current assets 10,375 5,606
Total current assets 315,727 230,879
Property and equipment, net 11,813 7,088
Patents, licenses, and other intangible assets, net 11,969 11,148
Marketable securities - long term 236,108 139,198
Income tax receivable 804 1,524
Loan receivable   86
Interest receivable   14
Other assets 311 265
Total assets 576,732 390,202
Current liabilities    
Accounts payable 3,797 6,869
Accrued expenses 9,662 5,480
Current portion of deferred rent 315 26
Current portion of deferred revenue 40,079 60,118
Income taxes payable   157
Total current liabilities 53,853 72,650
Deferred rent, less current portion 1,198 1,088
Total liabilities 55,051 73,738
Commitments and contingencies (see note 8)
Stockholders' equity    
Preferred stock, $0.01 par value: 10,000,000 authorized shares; -0- issued and outstanding shares at December 31, 2018 and 2017
Common stock, $0.01 par value: 200,000,000 authorized shares; 56,279,542 issued and outstanding shares at December 31, 2018 and 47,002,488 issued and outstanding at December 31, 2017 563 470
Additional paid-in capital 845,366 570,670
Accumulated other comprehensive loss (971) (1,808)
Accumulated deficit (323,277) (252,868)
Total stockholders' equity 521,681 316,464
Total liabilities and stockholders' equity $ 576,732 $ 390,202