CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Total Revenues	$ 477,000	$ 931,000
Operating Expenses:
Research and development	18,385,000	19,543,000
Selling, general and administrative	16,387,000	20,299,000
Total Operating Expenses	34,772,000	39,842,000
Operating Loss	(34,295,000)	(38,911,000)
Interest expense	0	(5,610,000)
Other income (expense), net	363,000	(135,000)
Loss from continuing operations before income taxes	(33,932,000)	(44,656,000)
Income tax expense (benefit)	13,000	(448,000)
Loss from continuing operations	(33,945,000)	(44,208,000)
Income (loss) from discontinued operations, net of income taxes	10,735,000	(29,121,000)
Net Loss	$ (23,210,000)	$ (73,329,000)
Loss per share from continuing operations, basic (in dollars per share)	$ (10.65)	$ (15.46)
Loss per share from continuing operations, diluted (in dollars per share)	(10.65)	(15.46)
(Loss) income per share from discontinuing operations, basic (in dollars per share)	3.37	(10.18)
(loss) income per share from discontinuing operations, diluted (in dollars per share)	3.37	(10.18)
Loss per share basic (in dollars per share)	(7.28)	(25.64)
Loss per share diluted (in dollars per share)	$ (7.28)	$ (25.64)
Weighted average shares outstanding - basic (in shares)	3,186	2,859
Weighted average shares outstanding - diluted (in shares)	3,186	2,859
Royalty revenues
Total Revenues	$ 477,000	$ 931,000