DISCONTINUED OPERATIONS - Discontinued Operations of the MST Franchise (Details) - Discontinued Operations, Disposed of by Sale - MST Franchise - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cost of goods sold	$ 0	$ 1,049	$ 80	$ 2,445
Research and development	0	1,064	0	4,503
Selling, general and administrative	117	8,849	25	30,780
Total operating expenses	117	9,913	25	35,283
Income (loss) from discontinued operations	(117)	(7,009)	1	(25,923)
(Loss) gain on the sale of the MST Franchise	(87)	0	12,918	0
Income (loss) from discontinued operations, before income taxes	(204)	(7,009)	12,919	(25,923)
Income tax expense	0	0	0	0
Net income (loss) from discontinued operations	(204)	(7,009)	12,919	(25,923)
Product sales
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total Revenues	$ 0	$ 3,953	$ 106	$ 11,805