Annual report pursuant to Section 13 and 15(d)

SEGMENT INFORMATION (Details)

v2.4.1.9
SEGMENT INFORMATION (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Segment
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting Information [Line Items]                      
Number of operating segments                 2us-gaap_NumberOfOperatingSegments    
Net revenues $ 74,073us-gaap_SalesRevenueNet $ 76,917us-gaap_SalesRevenueNet $ 74,553us-gaap_SalesRevenueNet $ 64,100us-gaap_SalesRevenueNet $ 66,637us-gaap_SalesRevenueNet $ 60,870us-gaap_SalesRevenueNet $ 55,975us-gaap_SalesRevenueNet $ 52,745us-gaap_SalesRevenueNet $ 289,643us-gaap_SalesRevenueNet $ 236,227us-gaap_SalesRevenueNet $ 222,858us-gaap_SalesRevenueNet
Operating profit before depreciation and amortization                 30,687trec_OperatingIncomeLossBeforePreDepreciationAndAmortization    
Operating profit (loss)                 25,482us-gaap_OperatingIncomeLoss 19,970us-gaap_OperatingIncomeLoss 17,456us-gaap_OperatingIncomeLoss
Depreciation and amortization                 5,205us-gaap_DepreciationDepletionAndAmortization    
Capital expenditures                 14,766us-gaap_PaymentsToAcquirePropertyPlantAndEquipment 6,828us-gaap_PaymentsToAcquirePropertyPlantAndEquipment 8,143us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Goodwill and intangible assets, net 47,985us-gaap_IntangibleAssetsNetIncludingGoodwill               47,985us-gaap_IntangibleAssetsNetIncludingGoodwill    
Total assets 232,074us-gaap_Assets       143,667us-gaap_Assets       232,074us-gaap_Assets 143,667us-gaap_Assets  
Eliminations [Member]                      
Segment Reporting Information [Line Items]                      
Goodwill and intangible assets, net 0us-gaap_IntangibleAssetsNetIncludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
              0us-gaap_IntangibleAssetsNetIncludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total assets (119,366)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
              (119,366)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Corporate [Member]                      
Segment Reporting Information [Line Items]                      
Net revenues                 0us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
   
Operating profit before depreciation and amortization                 (6,412)trec_OperatingIncomeLossBeforePreDepreciationAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
   
Operating profit (loss)                 (6,412)us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
   
Depreciation and amortization                 0us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
   
Goodwill and intangible assets, net 0us-gaap_IntangibleAssetsNetIncludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
              0us-gaap_IntangibleAssetsNetIncludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
   
Total assets 99,360us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
              99,360us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
   
Petrochemical [Member] | Operating Segments [Member]                      
Segment Reporting Information [Line Items]                      
Net revenues                 284,345us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_PetrochemicalSegmentMember
   
Operating profit before depreciation and amortization                 37,083trec_OperatingIncomeLossBeforePreDepreciationAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_PetrochemicalSegmentMember
   
Operating profit (loss)                 33,019us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_PetrochemicalSegmentMember
   
Depreciation and amortization                 4,064us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_PetrochemicalSegmentMember
   
Capital expenditures                 13,986us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_PetrochemicalSegmentMember
   
Goodwill and intangible assets, net 0us-gaap_IntangibleAssetsNetIncludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_PetrochemicalSegmentMember
              0us-gaap_IntangibleAssetsNetIncludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_PetrochemicalSegmentMember
   
Total assets 172,945us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_PetrochemicalSegmentMember
              172,945us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_PetrochemicalSegmentMember
   
Specialty Wax [Member] | Operating Segments [Member]                      
Segment Reporting Information [Line Items]                      
Net revenues                 5,298us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_SpecialtyWaxSegmentMember
   
Operating profit before depreciation and amortization                 16trec_OperatingIncomeLossBeforePreDepreciationAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_SpecialtyWaxSegmentMember
   
Operating profit (loss)                 (1,125)us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_SpecialtyWaxSegmentMember
   
Depreciation and amortization                 1,141us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_SpecialtyWaxSegmentMember
   
Capital expenditures                 780us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_SpecialtyWaxSegmentMember
   
Goodwill and intangible assets, net 47,985us-gaap_IntangibleAssetsNetIncludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_SpecialtyWaxSegmentMember
              47,985us-gaap_IntangibleAssetsNetIncludingGoodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_SpecialtyWaxSegmentMember
   
Total assets $ 79,135us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_SpecialtyWaxSegmentMember
              $ 79,135us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trec_SpecialtyWaxSegmentMember