CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues:
Net product sales	$ 64,390	$ 67,899	$ 124,582	$ 130,568
Total revenues	64,390	67,899	124,582	130,568
Operating expenses:
Cost of goods sold excluding amortization	6,059	6,566	11,724	12,596
Research and development	21,490	20,248	42,459	36,379
Selling, general and administrative	33,001	28,347	73,849	58,144
Intangible asset amortization	379	369	758	739
Total operating expenses	60,929	55,530	128,790	107,858
Income (loss) from operations	3,461	12,369	(4,208)	22,710
Other income	329	235	434	322
Income (loss) before income taxes	3,790	12,604	(3,774)	23,032
Provision for income taxes	1,216	2,951	82	4,729
Net income (loss)	$ 2,574	$ 9,653	$ (3,856)	$ 18,303
Net income (loss) per share:
Basic (in dollars per share)	$ 0.05	$ 0.17	$ (0.07)	$ 0.33
Diluted (in dollars per share)	$ 0.05	$ 0.17	$ (0.07)	$ 0.32
Weighted average shares outstanding:
Basic (in shares)	56,508,533	55,582,916	56,307,999	55,365,558
Diluted (in shares)	56,821,024	56,903,340	56,307,999	56,705,419