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Note receivable (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Mar. 31, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Sep. 30, 2021
Note receivable [Abstract] |  |  |  |  |  |
Interest rate |  |  |  |  |  | 4.50%
Collection of note receivable | $ 1,600 |  |  |  |  | $ 1,598
Interest income |  | $ 0 | $ 18 | $ 17 | $ 49 |

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- Definition Amount of nonoperating interest income from note receivable. + References No definition available. + Details
Name: | tact_NoteReceivableInterestIncome
Namespace Prefix: | tact_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Contractual interest rate charged under the note receivable agreement. + References No definition available. + Details
Name: | tact_NoteReceivableInterestRate
Namespace Prefix: | tact_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_AccountsAndNotesReceivableNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The cash inflow associated with principal collections from a borrowing supported by a written promise to pay an obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromCollectionOfNotesReceivable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration