SEGMENT INFORMATION (Tables)

9 Months Ended

Sep. 30, 2020

Segment Reporting [Abstract]

Summary of Segment Information

	Three Months Ended September 30, 2020
	Specialty Petrochemicals		Specialty Waxes		Corporate		Eliminations		Consolidated
	(in thousands)
Product sales	$	37,580	$	5,990	$	—	$	—	$	43,570
Processing fees	1,644		2,533		—		—		4,177
Total revenues	39,224		8,523		—		—		47,747
Operating income (loss) before depreciation and amortization	8,538		89		(2,050)		—		6,577
Operating income (loss)	5,871		(1,337)		(2,052)		—		2,482
Income (loss) from continuing operations before taxes	5,311		(1,293)		(2,057)		—		1,961
Depreciation and amortization	2,667		1,427		2		—		4,096
Capital expenditures	2,084		641		—		—		2,725

	Three Months Ended September 30, 2019
	Specialty Petrochemicals		Specialty Waxes		Corporate		Eliminations	Consolidated
	(in thousands)
Product sales	$	53,277	$	5,834	$	—	—	$	59,111
Processing fees	1,208		2,396		—		—	3,604
Total revenues	54,485		8,230		—		—	62,715
Operating income (loss) before depreciation and amortization	10,414		(260)		(2,670)		—	7,484
Operating income (loss)	7,449		(1,808)		(2,683)		—	2,958
Income (loss) from continuing operations before taxes	6,583		(2,071)		(2,691)		—	1,821
Depreciation and amortization	1,900		1,548		14		—	3,462
Capital expenditures	2,163		361		—		—	2,524

	Nine Months Ended September 30, 2020
	Specialty Petrochemicals		Specialty Waxes		Corporate		Eliminations		Consolidated
	(in thousands)
Product sales	$	119,202	$	18,258	$	—	$	—	$	137,460
Processing fees	4,047		8,981		—		—		13,028
Total revenues	123,249		27,239		—		—		150,488
Operating income (loss) before depreciation and amortization	20,002		2,009		(6,665)		—		15,346
Operating income (loss)	12,097		(2,084)		(6,677)		—		3,336
Income (loss) from continuing operations before taxes	9,901		(1,980)		(6,751)		—		1,170
Depreciation and amortization	7,905		4,093		13		—		12,011
Capital expenditures	9,067		1,242		—		—		10,309

	Nine Months Ended September 30, 2019
	Specialty Petrochemicals		Specialty Waxes		Corporate		Eliminations	Consolidated
	(in thousands)
Product sales	$	167,351	$	18,582	$	—	—	$	185,933
Processing fees	4,117		7,191		—		—	11,308
Total revenues	171,468		25,773		—		—	197,241
Operating income (loss) before depreciation and amortization	31,849		(343)		(7,158)		—	24,348
Operating income (loss)	22,885		(4,638)		(7,203)		—	11,044
Income (loss) from continuing operations before taxes	20,093		(5,623)		(7,202)		—	7,268
Depreciation and amortization	7,899		4,295		46		—	12,240
Capital expenditures	5,002		1,296		—		—	6,298

	September 30, 2020
	Specialty Petrochemicals		Specialty Waxes		Corporate		Eliminations		Consolidated
	(in thousands)
Trade receivables, product sales	$	16,154	$	3,606	$	—	$	—	$	19,760
Trade receivables, processing fees	771		2,125		—		—		2,896
Intangible assets, net	—		13,354		—		—		13,354
Total assets	290,266		84,933		131,187		(184,066)		322,320

	December 31, 2019
	Specialty Petrochemicals		Specialty Waxes		Corporate		Eliminations		Consolidated
	(in thousands)
Trade receivables, product sales	$	18,911	$	3,613	$	—	$	—	$	22,524
Trade receivables, processing fees	748		3,048		—		—		3,796
Intangible assets, net	—		14,736		—		—		14,736
Total assets	289,546		88,245		90,203		(166,175)		301,819