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OTHER INCOME (Details) (USD $) | 12 Months Ended
--- | ---
Jun. 30, 2012 | Jun. 30, 2011
Notes to Financial Statements |  |
Interest income | $ 291 | $ 187
Other rental income | 39 | 51
Exchange (loss) gain | (431) | 83
Other miscellaneous income | 277 | 381
Total | $ 176 | $ 702

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

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- Details
Name: | TRT_NotesToFinancialStatementsAbstract
Namespace Prefix: | TRT_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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- Definition Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
Name: | us-gaap_RentalIncomeNonoperating
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration