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STOCK OPTIONS (Details 1) (USD $)
In Thousands, except Share data, unless otherwise specified
6 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Notes to Financial Statements    
Outstanding at beginning of period, Options 130,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber 263,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Granted, Options    50,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Exercised, Options    (121,500)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Forfeited or expired, Options    (40,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
Outstanding at end of period, Options 130,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber 152,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Exercisable at end of period, Options 112,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber 125,750us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Outstanding at beginning of period, Weighted- Average Exercise Price $ 3.93us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice $ 3.06us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Granted, Weighted- Average Exercise Price    $ 3.26us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Exercised, Weighted- Average Exercise Price    $ (1.90)us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
Forfeited or expired, Weighted- Average Exercise Price    $ (4.72)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
Outstanding at end of period, Weighted- Average Exercise Price $ 3.93us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice $ 3.61us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Exercisable at end of period, Weighted- Average Exercise Price $ 4.06us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice $ 3.72us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Outstanding at beginning of period, Weighted - Average Remaining Contractual Term (Years) 2 years 6 months 26 days 1 year 6 months 26 days
Granted, Weighted - Average Remaining Contractual Term (Years)   4 years 10 months 13 days
Outstanding at end of period, Weighted - Average Remaining Contractual Term (Years) 2 years 0 months 26 days 2 years 8 months 1 day
Exercisable at end of period, Weighted - Average Remaining Contractual Term (Years) 1 year 9 months 11 days 2 years 2 months 12 days
Outstanding at beginning of period, Aggregate Intrinsic Value $ 13us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue $ 122us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
Granted, Aggregate Intrinsic Value      
Exercised, Aggregate Intrinsic Value    (181)TRT_StockIssuedDuringPeriodSharesStockOptionsExercisedAggregateIntrinsicValue
Forfeited or expired, Aggregate Intrinsic Value      
Outstanding at end of period, Aggregate Intrinsic Value    45us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
Exercisable at end of period, Aggregate Intrinsic Value    $ 38us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1