CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 75,362	$ 178,593
Marketable securities	81,897	32,965
Accounts and other receivables, net	20,876	18,354
Prepaid expenses and other current assets	10,436	4,217
Inventory	3,531	3,616
Total current assets	192,102	237,745
Property and equipment, net	1,015	476
Operating lease right-of-use assets	6,319	2,252
Intangible assets, net	20,904	22,749
Restricted cash	150	150
Total assets	220,490	263,372
Current liabilities:
Accounts payable	6,112	7,385
Accrued expenses	16,004	14,422
Deferred revenue	1,169	1,069
Short-term borrowings	10,475	0
Other current liabilities	496	782
Total current liabilities	34,256	23,658
Long-term debt	29,251	36,562
Deferred revenue - noncurrent	13,798	14,560
Operating lease liabilities - noncurrent	6,235	1,860
Other long-term liabilities	600	2,352
Total liabilities	84,140	78,992
Contingencies (Note 13)
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 September 30, 2022 and December 31, 2021; 34,072,155 and 33,905,826 shares issued and outstanding at September 30, 2022 and December 31, 2021, respectively	34	34
Additional paid-in capital	763,562	752,602
Accumulated deficit	(627,899)	(569,097)
Accumulated other comprehensive income	653	841
Total stockholders' equity	136,350	184,380
Total liabilities and stockholders' equity	$ 220,490	$ 263,372