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INVESTMENT PROPERTIES (Details Narrative) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Jun. 30, 2013 | Jun. 30, 2012
Rental income | $ 132 | $ 148
Depreciation expenses | 112 | 77
PurchaseOfRentalPropertyMaoYe [Member] |  |
Cash purchase price | 904 |
Term of the rental agreement | 5 years |
Rental income | 86 | 78
PurchaseOfRentalPropertyJiangHuaiMember |  |
Cash purchase price | 586 |
Rental income | 3 |
PurchaseOfRentalPropertyFuliMember |  |
Cash purchase price | 655 |
Rental income | 43 | 3
Penang [Member] |  |
Depreciation expenses | 7 |
RMBMember | PurchaseOfRentalPropertyMaoYe [Member] |  |
Cash purchase price | 5,554 |
RMBMember | PurchaseOfRentalPropertyJiangHuaiMember |  |
Cash purchase price | 3,600 |
Rental income |  | 66
RMBMember | PurchaseOfRentalPropertyFuliMember |  |
Cash purchase price | $ 4,025 |

X
- Definition Custom Element. + References No definition available. + Details
Name: | TRT_CashPurchasePrice
Namespace Prefix: | TRT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Custom Elements. + References No definition available. + Details
Name: | TRT_DepreciationExpenses
Namespace Prefix: | TRT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Custom Element. + References No definition available. + Details
Name: | TRT_RentalIncome
Namespace Prefix: | TRT_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Custom Element. + References No definition available. + Details
Name: | TRT_TermOfRentalAgreement
Namespace Prefix: | TRT_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration