Cover - USD ($)	12 Months Ended
	Dec. 31, 2022	Feb. 28, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K/A
Amendment Flag	true
Amendment Description	EXPLANATORY NOTE TransAct Technologies Incorporated (the “Company”) is filing this Amendment No, 1 (this “Amendment”) to its Annual Report on Form 10-K for the year ended December 31, 2022, filed with the Securities and Exchange Commission (the “SEC”) on March 28, 2023 (the “Original Form 10-K”). The purpose of this Amendment is solely to add to Part II, Item 9A, “Controls and Procedures,” a statement reflecting the conclusion of the Company’s Chief Executive Officer and Chief Financial Officer that the Company’s disclosure controls and procedures were effective at the reasonable assurance level as of December 31, 2022. This statement was inadvertently omitted from the Original Form 10-K due to a clerical error. The complete text of Part II, Item 9A, as amended, is included in this Amendment.   As required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), this Amendment also includes new, currently dated certifications from the Company’s principal executive officer and principal financial officer as required by Rule 13a-14(a) under the Exchange Act and Section 302 of the Sarbanes–Oxley Act of 2002. These certifications are filed herewith as Exhibits 31.3 and 31.4.   Except as described above, no other changes are being made to the Original Form 10-K and this Amendment does not modify, amend, or update in any way any of the financial or other information contained in the Original Form 10-K. Because no financial statements have been included in this Amendment, paragraph 3 of each of the certifications filed herewith as Exhibits 31.3 and 31.4 has been omitted. This Amendment does not reflect subsequent events occurring after the filing date of the Original Form 10-K. Accordingly, this Amendment is limited in scope and should be read in conjunction with the Original Form 10-K and with the Company’s other filings with the SEC subsequent to the filing of the Original Form 10-K.
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2022
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Current Fiscal Year End Date	--12-31
Entity File Number	0-21121
Entity Registrant Name	TRANSACT TECHNOLOGIES INC
Entity Central Index Key	0001017303
Entity Tax Identification Number	06-1456680
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	One Hamden Center
Entity Address, Address Line Two	2319 Whitney Avenue
Entity Address, Address Line Three	Suite 3B
Entity Address, City or Town	Hamden
Entity Address, State or Province	CT
Entity Address, Postal Zip Code	06518
City Area Code	(203)
Local Phone Number	859-6800
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	TACT
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 38,300,000
Entity Common Stock, Shares Outstanding		9,935,827
Auditor Name	Marcum LLP
Auditor Location	Hartford, Connecticut
Auditor Firm ID	688