XML 12 R2.htm IDEA: XBRL DOCUMENT v3.23.2
Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2022
Current assets      
Cash and cash equivalents $ 34,710 $ 53,942  
Marketable debt securities 476,667 526,689  
Marketable equity securities 39,995 42,431  
Accounts receivable 20,019 28,997  
Prepaid expenses and other current assets 22,171 23,283  
Total current assets 593,562 675,342  
Property and equipment, net 67,997 59,183  
Patents, licenses, and other intangible assets, net 18,708 18,500  
Marketable debt securities - long term 0 3,826  
Marketable equity securities - long term 64,210 54,383  
Right of use (ROU) asset 33,046 34,419  
Other assets 598 613  
Total assets 778,121 846,266  
Current liabilities      
Accounts payable 14,097 10,088  
Accrued expenses 18,440 18,728  
Lease liabilities 4,228 4,708  
Deferred revenue 7,865 30,320 $ 35,300
Total current liabilities 44,630 63,844  
Lease liabilities, net of current portion 54,615 54,926  
Total liabilities 99,245 118,770  
Commitments and contingencies  
Stockholders’ equity      
Preferred stock, $0.01 par value: 10,000,000 authorized shares; -0- issued and outstanding shares at June 30, 2023 and December 31, 2022 0 0  
Common stock, $0.01 par value: 200,000,000 authorized shares at June 30, 2023 and December 31, 2022; 60,600,060 issued and outstanding at June 30, 2023 and 59,997,713 issued and outstanding at December 31, 2022 607 601  
Additional paid-in capital 1,101,131 1,072,132  
Accumulated other comprehensive loss (1,860) (6,952)  
Accumulated deficit (421,002) (338,285)  
Total stockholders’ equity 678,876 727,496 $ 742,341
Total liabilities and stockholders’ equity $ 778,121 $ 846,266