CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues:
Royalties	$ 14	$ 172	$ 81	$ 285
Collaboration- related party	96	102	148	102
License fees - related party	300	1,050	2,400	1,050
Product sales, net of allowance (Note 4)	0	0	223	0
Total revenues	410	1,324	2,852	1,437
Expenses:
Research and development	519	465	1,351	1,040
General and administrative	456	548	2,128	1,391
Total expenses	975	1,013	3,479	2,431
Operating income (loss)	(565)	311	(627)	(994)
Loss on debt extinguishment	0	0	0	(2,600)
Interest expense - related party (Note 10)	(113)	(111)	(338)	(335)
Income (loss) before provision for income taxes	(678)	200	(965)	(3,929)
Provision for income taxes	0	0	0	0
Net income (loss)	$ (678)	$ 200	$ (965)	$ (3,929)
Net income (loss) per share:
Basic	$ (0.02)	$ 0.00	$ (0.03)	$ (0.16)
Diluted	$ (0.02)	$ 0.00	$ (0.03)	$ (0.16)
Weighted average number of shares outstanding:
Basic	32,336	31,593	32,304	25,023
Diluted	32,336	31,593	32,304	25,023