CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 281,263	$ 95,633
Marketable securities	49,787	48,928
Accounts and other receivables, net	805	15,503
Prepaid expenses and other current assets	9,039	9,858
Inventory	3,906	2,886
Total current assets	344,800	172,808
Property and equipment, net	5,251	1,360
Operating lease right-of-use assets	4,983	6,038
Restricted cash	150	150
Total assets	355,184	180,356
Current liabilities:
Accounts payable	6,504	5,919
Accrued expenses	17,521	16,359
Deferred revenue	38,592	1,205
Short-term borrowings	0	10,475
Other current liabilities	646	579
Total current liabilities	63,263	34,537
Long-term debt		29,310
Deferred revenue - noncurrent	20,692	13,557
Operating lease liabilities - noncurrent	4,906	5,984
Other long-term liabilities		600
Total liabilities	88,861	83,988
Contingencies (Note 17)
Stockholders’ equity:
Preferred stock, $.001 par value, 5,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock, $.001 par value, 300,000,000 shares authorized at December 31, 2023 and 2022, respectively; 49,043,074 and 34,082,934 shares issued and outstanding at December 31, 2023 and 2022, respectively	49	34
Additional paid-in capital	1,007,556	766,899
Accumulated deficit	(742,146)	(671,351)
Accumulated other comprehensive income	864	786
Total stockholders’ equity	266,323	96,368
Total liabilities and stockholders’ equity	$ 355,184	$ 180,356