Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND INTANGIBLE ASSETS, NET - Finite and Indefinite-Lived Intangible Assets (Details)

v3.19.1
GOODWILL AND INTANGIBLE ASSETS, NET - Finite and Indefinite-Lived Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Intangible assets subject to amortization (Definite-lived)      
Gross $ 24,548   $ 24,548
Accumulated Amortization (8,421)   (7,956)
Total 16,127   16,592
Intangible assets not subject to amortization (Indefinite-lived)      
Gross intangible assets 26,903   26,903
Net intangible assets 18,482   18,947
Amortization of intangible assets 465 $ 465  
Emissions Allowance      
Intangible assets not subject to amortization (Indefinite-lived)      
Intangible assets not subject to amortization (Indefinite-lived) 197   197
Trade name      
Intangible assets not subject to amortization (Indefinite-lived)      
Intangible assets not subject to amortization (Indefinite-lived) 2,158   2,158
Customer relationships      
Intangible assets subject to amortization (Definite-lived)      
Gross 16,852   16,852
Accumulated Amortization (5,055)   (4,775)
Total 11,797   12,077
Non-compete agreements      
Intangible assets subject to amortization (Definite-lived)      
Gross 94   94
Accumulated Amortization (85)   (80)
Total 9   14
Licenses and permits      
Intangible assets subject to amortization (Definite-lived)      
Gross 1,471   1,471
Accumulated Amortization (522)   (495)
Total 949   976
Developed technology      
Intangible assets subject to amortization (Definite-lived)      
Gross 6,131   6,131
Accumulated Amortization (2,759)   (2,606)
Total $ 3,372   $ 3,525