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INVESTMENT PROPERTIES (Details Narrative) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Mar. 31, 2013 | Mar. 31, 2012
Rental income | $ 33,000 | $ 30,000 | $ 96,000 | $ 125,000
Depreciation expenses | 26,000 | 18,000 | 78,000 | 54,000
PurchaseOfRentalPropertyMaoYe [Member] |  |  |  |
Cash purchase price | 894 |  |  |
Rental income | 22,000 | 20,000 | 65,000 | 59,000
PurchaseOfRentalPropertyJiangHuaiMember |  |  |  |
Cash purchase price | 579,000 |  |  |
Rental income |  | 10,000 |  | 66,000
PurchaseOfRentalPropertyFuli [Member] |  |  |  |
Cash purchase price | 647,000 |  |  |
Rental income | 11,000 | 0 | 31,000 | 0
PurchaseOfRentalPropertyPenang [Member] |  |  |  |
Factory reclassified to investment property | 126,000 |  | 126,000 |
RmbCurrency [Member] | PurchaseOfRentalPropertyMaoYe [Member] |  |  |  |
Cash purchase price |  |  | 5,554,000 |
RmbCurrency [Member] | PurchaseOfRentalPropertyJiangHuaiMember |  |  |  |
Cash purchase price |  |  | 3,600,000 |
RmbCurrency [Member] | PurchaseOfRentalPropertyFuli [Member] |  |  |  |
Cash purchase price |  |  | $ 4,025,000 |

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

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | TRT_FactoryReclassifiedAsInvestmentProperty
Namespace Prefix: | TRT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The cash outflow associated with the purchase of real estate held-for-investment and real estate joint ventures. + References No definition available. + Details
Name: | us-gaap_PaymentsToAcquireRealEstateAndRealEstateJointVentures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration