ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS
Current assets held for sale	$ 15,196	$ 19,348
Current liabilities held for sale	$ 2,494	1,755
IKONICS
Other information
Percent of net proceeds of disposal that is accrued to historic stockholders if disposition is consummated within eighteen months (as a percent)	95.00%
IKONICS | Discontinued Operations, Held-for-sale [Member]
ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS
Trade receivables	$ 1,843	1,327
inventories	3,997	3,737
Prepaid expenses and other current assets	551	944
Property, plant and equipment, net	7,540	10,036
Intangible assets, net	1,265	3,304
Current assets held for sale	15,196	19,348
Accounts payable	1,567	1,207
Accrued compensation	785	439
Other accrued liabilities	142	109
Current liabilities held for sale	2,494	$ 1,755
Impairment of assets of IKONIC's long lived assets	$ 4,500