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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Revenue	$ 5	$ 5
Operating expense:
Licensing costs	(4)	(9,438)
Research and development	1,227	1,152
Selling, general and administrative	3,185	41,943
Total operating expense	4,408	33,657
Loss from operations	(4,403)	(33,652)
Interest and other income, net	24	16
Loss before taxes	(4,379)	(33,636)
Income tax benefit	1,059	7,193
Net Loss	$ (3,320)	$ (26,443)
Basic loss per share (in dollars per share)	$ (0.05)	$ (0.37)
Diluted loss per share (in dollars per share)	$ (0.05)	$ (0.37)
Weighted average shares outstanding - basic (in shares)	71,233	71,059
Weighted average shares outstanding - diluted (in shares)	71,233	71,059

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