CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities
Net income (loss)	$ (4,146)	$ 3,252
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation of property and equipment	206	291
Stock-based compensation	3,584	4,351
Amortization of premiums and accretion of discounts on marketable securities	(1,466)	(2,288)
Loss on sale of marketable securities	0	655
Intangible asset amortization	2,018	379
Deferred income taxes	(246)	2,014
Other non-cash adjustments, net	641	1,109
Changes in operating assets and liabilities:
Accounts receivable	(2,587)	8,901
Prepaid expenses and other assets	1,781	11,345
Inventory	29	74
Accounts payable and other liabilities	1,165	(10,791)
Product revenue allowances	6,590	12,511
Net cash provided by operating activities	7,569	31,803
Cash flows from investing activities
Asset acquisition	(2,705)	0
Purchases of property and equipment	(7)	(51)
Purchases of marketable securities	(76,006)	(163,045)
Sales and maturities of marketable securities	60,500	350,390
Net cash provided by (used in) investing activities	(18,218)	187,294
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(14)	45
Net change in cash, cash equivalents and restricted cash	(10,663)	219,142
Cash, cash equivalents and restricted cash
Beginning of period	136,290	135,498
End of period	$ 125,627	$ 354,640