Quarterly report pursuant to Section 13 or 15(d)

SEGMENT INFORMATION (Details)

v3.19.1
SEGMENT INFORMATION (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Segment Reporting Information [Line Items]      
Total revenues $ 65,155 $ 71,741  
Operating profit (loss) before depreciation and amortization 8,253 6,635  
Operating profit (loss) 3,810 3,609  
Profit (loss) before taxes 2,229 2,942  
Depreciation and amortization 4,442 3,026  
Capital expenditures 1,887 11,028  
Trade receivables, net 25,737   $ 27,112
Goodwill and intangible assets, net 40,280   40,745
Total assets 341,396   329,968
Product sales      
Segment Reporting Information [Line Items]      
Total revenues 61,493 66,699  
Trade receivables, net 23,217   25,088
Processing fees      
Segment Reporting Information [Line Items]      
Total revenues 3,662 5,042  
Trade receivables, net 2,520   2,024
Operating Segments | Specialty Petrochemical      
Segment Reporting Information [Line Items]      
Total revenues 56,873 62,313  
Operating profit (loss) before depreciation and amortization 11,407 8,393  
Operating profit (loss) 8,333 6,679  
Profit (loss) before taxes 7,135 6,054  
Depreciation and amortization 3,074 1,714  
Capital expenditures 1,378 10,283  
Goodwill and intangible assets, net 0   0
Total assets 301,633   284,367
Operating Segments | Specialty Petrochemical | Product sales      
Segment Reporting Information [Line Items]      
Total revenues 55,490 60,285  
Trade receivables, net 19,938   21,915
Operating Segments | Specialty Petrochemical | Processing fees      
Segment Reporting Information [Line Items]      
Total revenues 1,383 2,028  
Trade receivables, net 684   633
Operating Segments | Specialty Wax      
Segment Reporting Information [Line Items]      
Total revenues 8,282 9,595  
Operating profit (loss) before depreciation and amortization (849) 390  
Operating profit (loss) (2,197) (914)  
Profit (loss) before taxes (2,539) (1,181)  
Depreciation and amortization 1,348 1,304  
Capital expenditures 509 745  
Goodwill and intangible assets, net 40,280   40,745
Total assets 113,827   115,366
Operating Segments | Specialty Wax | Product sales      
Segment Reporting Information [Line Items]      
Total revenues 6,003 6,383  
Trade receivables, net 3,279   3,173
Operating Segments | Specialty Wax | Processing fees      
Segment Reporting Information [Line Items]      
Total revenues 2,279 3,212  
Trade receivables, net 1,836   1,391
Corporate      
Segment Reporting Information [Line Items]      
Total revenues 0 0  
Operating profit (loss) before depreciation and amortization (2,305) (2,148)  
Operating profit (loss) (2,326) (2,156)  
Profit (loss) before taxes (2,367) (1,931)  
Depreciation and amortization 20 8  
Capital expenditures 0 0  
Goodwill and intangible assets, net 0   0
Total assets 90,141   91,474
Corporate | Product sales      
Segment Reporting Information [Line Items]      
Total revenues 0 0  
Trade receivables, net 0   0
Corporate | Processing fees      
Segment Reporting Information [Line Items]      
Total revenues 0 0  
Trade receivables, net 0   0
Eliminations      
Segment Reporting Information [Line Items]      
Total revenues 0 (167)  
Operating profit (loss) before depreciation and amortization 0 0  
Operating profit (loss) 0 0  
Profit (loss) before taxes 0 0  
Depreciation and amortization 0 0  
Capital expenditures 0 0  
Goodwill and intangible assets, net 0   0
Total assets (164,205)   (161,239)
Eliminations | Product sales      
Segment Reporting Information [Line Items]      
Total revenues 0 31  
Trade receivables, net 0   0
Eliminations | Processing fees      
Segment Reporting Information [Line Items]      
Total revenues 0 $ (198)  
Trade receivables, net $ 0   $ 0