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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

X

- 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

X

- 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

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountsAndNotesReceivableNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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