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INVESTMENT PROPERTIES (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Jun. 30, 2014
Mao Ye RMB [Member]    
Investment Amount $ 5,554us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
$ 5,554us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeRMBMember
Mao Ye USD [Member]
   
Investment Amount 894us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeUSDMember
904us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_MaoYeUSDMember
Jiang Huai RMB [Member]    
Investment Amount 3,600us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiRMBMember
3,600us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiRMBMember
Jiang Huai USD [Member]
   
Investment Amount 580us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiUSDMember
586us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_JiangHuaiUSDMember
Fu Li RMB [Member]    
Investment Amount 4,025us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiRMBMember
4,025us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiRMBMember
Fu Li USD [Member]
   
Investment Amount 648us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDMember
655us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstatePropertiesAxis
= TRT_FuLiUSDMember
China RMB [Member]    
Currency translation      
Gross investment in rental property 13,179us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_RealEstatePropertiesAxis
= TRT_ChinaRMBMember
13,179us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_RealEstatePropertiesAxis
= TRT_ChinaRMBMember
Accumulated depreciation on rental property (2,961)TRT_AccumulatedDepreciationOnRentalProperty
/ us-gaap_RealEstatePropertiesAxis
= TRT_ChinaRMBMember
(3,455)TRT_AccumulatedDepreciationOnRentalProperty
/ us-gaap_RealEstatePropertiesAxis
= TRT_ChinaRMBMember
Net investment in property 10,218us-gaap_RealEstateInvestments
/ us-gaap_RealEstatePropertiesAxis
= TRT_ChinaRMBMember
9,724us-gaap_RealEstateInvestments
/ us-gaap_RealEstatePropertiesAxis
= TRT_ChinaRMBMember
China USD [Member]
   
Currency translation 3us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_RealEstatePropertiesAxis
= country_CN
(23)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_RealEstatePropertiesAxis
= country_CN
Gross investment in rental property 2,125us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_RealEstatePropertiesAxis
= country_CN
2,122us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_RealEstatePropertiesAxis
= country_CN
Accumulated depreciation on rental property (557)TRT_AccumulatedDepreciationOnRentalProperty
/ us-gaap_RealEstatePropertiesAxis
= country_CN
(476)TRT_AccumulatedDepreciationOnRentalProperty
/ us-gaap_RealEstatePropertiesAxis
= country_CN
Net investment in property $ 1,568us-gaap_RealEstateInvestments
/ us-gaap_RealEstatePropertiesAxis
= country_CN
$ 1,646us-gaap_RealEstateInvestments
/ us-gaap_RealEstatePropertiesAxis
= country_CN