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INVESTMENT PROPERTIES (Details Narrative) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Jun. 30, 2014
Rental income $ 43us-gaap_OperatingLeasesIncomeStatementLeaseRevenue $ 46us-gaap_OperatingLeasesIncomeStatementLeaseRevenue $ 130us-gaap_OperatingLeasesIncomeStatementLeaseRevenue $ 136us-gaap_OperatingLeasesIncomeStatementLeaseRevenue  
Depreciation expenses 27us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease 27us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease 81us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease 81us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease  
Mao Ye RMB [Member]          
Investment Date     Jan. 04, 2008    
Cash purchase price 5,554us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
  5,554us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
  5,554us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
Rental agreement term     5 years    
Annual rent increase     8.00%TRT_LiabilityForFutureRentalRateIncreaseInterestRate
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
   
Rental income 179us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
179us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
537us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
529us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
 
Mao Ye USD [Member]
         
Cash purchase price 894us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeUSDMember
  894us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeUSDMember
  904us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeUSDMember
Rental income 29us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeUSDMember
30us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeUSDMember
87us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeUSDMember
87us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeUSDMember
 
Jiang Huai RMB [Member]          
Cash purchase price 3,600us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiRMBMember
  3,600us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiRMBMember
  3,600us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiRMBMember
Rental income   27us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiRMBMember
  82us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiRMBMember
 
Jiang Huai USD [Member]
         
Investment Date     Jan. 06, 2010    
Cash purchase price 580us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiUSDMember
  580us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiUSDMember
  586us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiUSDMember
Rental income    4us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiUSDMember
   13us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiUSDMember
 
Fu Li RMB [Member]          
Cash purchase price 4,025us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiRMBMember
  4,025us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiRMBMember
  4,025us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiRMBMember
Rental income 90us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiRMBMember
74us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiRMBMember
265us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiRMBMember
221us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiRMBMember
 
Fu Li USD [Member]
         
Investment Date     Apr. 08, 2010    
Cash purchase price 648us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDMember
  648us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDMember
  655us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDMember
Rental income 14us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDMember
12us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDMember
43us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDMember
36us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDMember
 
Fu Li U S D Lease 1 [Member]          
Initial rental increase     20.00%us-gaap_LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDLease1Member
   
Annual rent increase     10.00%TRT_LiabilityForFutureRentalRateIncreaseInterestRate
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDLease1Member
   
Fu Li U S D Lease 2 [Member]          
Initial rental increase     21.00%us-gaap_LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDLease2Member
   
Annual rent increase     6.00%TRT_LiabilityForFutureRentalRateIncreaseInterestRate
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDLease2Member
   
Penang-Malaysia RM [Member]          
Factory reclassified to investment property 374TRT_FactoryReclassifiedToInvestmentProperty
/ us-gaap_RealEstatePropertiesAxis
= TRT_PenangRMMember
  374TRT_FactoryReclassifiedToInvestmentProperty
/ us-gaap_RealEstatePropertiesAxis
= TRT_PenangRMMember
   
Penang-Malaysia USD [Member]
         
Investment Date     Dec. 31, 2012    
Factory reclassified to investment property 101TRT_FactoryReclassifiedToInvestmentProperty
/ us-gaap_RealEstatePropertiesAxis
= TRT_PenangUSDMember
  101TRT_FactoryReclassifiedToInvestmentProperty
/ us-gaap_RealEstatePropertiesAxis
= TRT_PenangUSDMember
   
Depreciation expenses $ 1us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease
/ us-gaap_RealEstatePropertiesAxis
= TRT_PenangUSDMember
   $ 2us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease
/ us-gaap_RealEstatePropertiesAxis
= TRT_PenangUSDMember