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Payments To Equity Method Investment, Contributions, Net Of Return Of Capital

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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EQUITY-METHOD INVESTMENT (Details) $ in Thousands	3 Months Ended		9 Months Ended
EQUITY-METHOD INVESTMENT (Details) $ in Thousands	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) vote	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2013
Equity Method Investment, Summarized Financial Information [Abstract]
Percentage of operating expenses to be absorbed			66.66%
Percentage of production offtake			66.66%
St. Gabriel CC Company, LLC
Equity Method Investment, Summarized Financial Information [Abstract]
Ownership percentage in joint venture						66.66%
Number of votes \| vote			2
Loss relating to joint venture's expenses	$ 142	$ 143	$ 416	$ 423
Capital contribution to investment, net	46	$ 25	31	$ 823
Carrying value of joint venture	$ 4,586		$ 4,586		$ 4,971
St. Gabriel CC Company, LLC \| Eastman Chemical Company
Equity Method Investment, Summarized Financial Information [Abstract]
Ownership percentage in joint venture						33.34%
Number of votes \| vote			2