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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 108,758 $ 108,884
Marketable securities 131,589 45,462
Accounts receivable 6,410 56,222
Inventory, net 1,443 1,451
Prepaid expenses and other current assets 6,475 10,161
Total current assets 254,675 222,180
Property, equipment and software, net 24,091 29,575
Right-of-use asset 25,501 27,335
Other non current assets 1,386 1,378
Total assets 305,653 280,468
Current liabilities:    
Accounts payable 3,795 4,899
Accrued expenses and other current liabilities 27,528 28,998
Deferred revenue 9,671 9,988
Lease liabilities 4,161 4,726
Total current liabilities 45,155 48,611
Deferred revenue, net of current portion 58,538 59,480
Lease liabilities, net of current portion 30,158 30,106
Other non current liabilities 258 258
Total liabilities 134,109 138,455
Stockholders' equity:    
Common stock, $0.01 par value -- 125,000,000 shares authorized, 61,938,493 and 61,701,467 shares outstanding at June 30, 2023 and December 31, 2022, respectively 619 617
Additional paid-in capital 1,245,231 1,235,095
Accumulated other comprehensive income (loss) (72) (5)
Accumulated deficit (1,074,234) (1,093,694)
Total stockholders' equity 171,544 142,013
Total liabilities and stockholders' equity $ 305,653 $ 280,468