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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Cash Flow from Operating Activities |  |
Net income / (loss) | $ 180 us-gaap_ProfitLoss | $ (284)us-gaap_ProfitLoss
Depreciation and amortization | 1,189 us-gaap_DepreciationDepletionAndAmortization | 1,198 us-gaap_DepreciationDepletionAndAmortization
Bad debt expense, net | 56 us-gaap_PremiumsReceivableAllowanceForDoubtfulAccountsProvisionChargedToExpense1 | 337 us-gaap_PremiumsReceivableAllowanceForDoubtfulAccountsProvisionChargedToExpense1
Inventory recovery | (73)us-gaap_InventoryWriteDown | (47)us-gaap_InventoryWriteDown
Warranty (recovery) / expense, net | (9)us-gaap_ProductWarrantyExpense | 3 us-gaap_ProductWarrantyExpense
Accrued interest expense, net of interest income | 49 us-gaap_InterestExpenseOther | 5 us-gaap_InterestExpenseOther
Loss on sale of property - continued operations | 28 us-gaap_GainLossOnSaleOfProperty | 11 us-gaap_GainLossOnSaleOfProperty
Impairment loss | 70 us-gaap_GoodwillImpairmentLoss |
Contribution to capital - payable forgiveness | 9 us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt |
Stock option exercises | 89 us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans | 200 us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans
Deferred tax provision | (50)us-gaap_DeferredIncomeTaxExpenseBenefit | (23)us-gaap_DeferredIncomeTaxExpenseBenefit
Changes in operating assets and liabilities, net of acquisition effects |  |
Accounts receivables | 354 us-gaap_IncreaseDecreaseInAccountsReceivable | (504)us-gaap_IncreaseDecreaseInAccountsReceivable
Other receivables | (94)us-gaap_IncreaseDecreaseInOtherReceivables | 1,462 us-gaap_IncreaseDecreaseInOtherReceivables
Other assets | 78 us-gaap_IncreaseDecreaseInOtherOperatingAssets | (916)us-gaap_IncreaseDecreaseInOtherOperatingAssets
Inventories | (318)us-gaap_IncreaseDecreaseInInventories | 1,192 us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other current assets | (58)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | (87)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Accounts payable and accrued liabilities | 190 us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities | (380)us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
Income tax payable | 55 us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable | 8 us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable
Other non-current liabilities |  | 26 us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities
Net Cash Provided by Operating Activities | 1,745 us-gaap_NetCashProvidedByUsedInOperatingActivities | 2,201 us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash Flow from Investing Activities |  |
Additions to property, plant and equipment | (899)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (1,721)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Proceeds from disposal of plant, property and equipment | 16 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 31 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Net Cash Used in Investing Activities | (883)us-gaap_NetCashProvidedByUsedInInvestingActivities | (1,690)us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash Flow from Financing Activities |  |
Repayment of lines of credit | (891)us-gaap_RepaymentsOfLinesOfCredit | (445)us-gaap_RepaymentsOfLinesOfCredit
Repayment of bank loans and capital leases | (473)TRT_RepaymentOfBankLoansAndCapitalLeases | (556)TRT_RepaymentOfBankLoansAndCapitalLeases
Proceeds from long-term bank loans | 32 TRT_ProceedsFromLongtermBankLoans | 68 TRT_ProceedsFromLongtermBankLoans
Proceeds from exercising stock options |  | 342 us-gaap_ProceedsFromStockOptionsExercised
Dividend paid to non-controlling interest |  | (80)us-gaap_PaymentsOfDividends
Net Cash Used in Financing Activities | (1,332)us-gaap_NetCashProvidedByUsedInFinancingActivities | (671)us-gaap_NetCashProvidedByUsedInFinancingActivities
Effect of Changes in Exchange Rate | (59)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | (59)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
NET DECREASE IN CASH AND CASH EQUIVALENTS | (529)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (219)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 2,938 us-gaap_CashAndCashEquivalentsAtCarryingValue | 2,793 us-gaap_CashAndCashEquivalentsAtCarryingValue
CASH AND CASH EQUIVALENTS, END OF PERIOD | 2,409 us-gaap_CashAndCashEquivalentsAtCarryingValue | 2,574 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash paid during the period for Interest | 125 us-gaap_InterestPaid | 132 us-gaap_InterestPaid
Cash paid during the period for Income taxes | 76 us-gaap_IncomeTaxesPaid | 20 us-gaap_IncomeTaxesPaid
Non-Cash Transactions |  |
Capital lease of property, plant and equipment | $ 32 us-gaap_AmortizationOfLeasedAsset | $ 68 us-gaap_AmortizationOfLeasedAsset

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition Amount of expense for known and estimated loss on collection of premiums receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition The cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards other than stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References No definition available. + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The expense charged against earnings for the period pertaining to standard and extended warranties on the entity's goods and services granted to customers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(3,4)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
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- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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