DISPOSED AND DISCONTINUED OPERATIONS - Statement of Operations for Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
DISPOSED AND DISCONTINUED OPERATIONS
Cost of sales		$ (700)		$ (900)
Total operating expense	$ 128	133	$ 533	514
Operating income (loss) from discontinued operations	(128)	567	(533)	386
Other income (expense)	151			10,835
Other income (expense)		(84)	(1)
Income (loss) from discontinued operations before income taxes	23	483	(534)	11,221
Provision (benefit) for income taxes	(27)	108	(113)	2,531
Income (loss) from discontinued operations, net of income taxes	$ 50	$ 375	$ (421)	$ 8,690

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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