Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2022	Apr. 24, 2023	Oct. 07, 2022
Document Information [Line Items]
Entity Registrant Name	M-tron Industries, Inc.
Entity Central Index Key	0001902314
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Public Float			$ 25,815,984
Entity Common Stock, Shares Outstanding		2,721,000
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Document Type	10-K/A
Amendment Flag	true
Document Period End Date	Dec. 31, 2022
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity File Number	001-041391
Entity Tax Identification Number	46-0457944
Entity Address, Address Line One	2525 Shader Road
Entity Address, City or Town	Orlando
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	32804
City Area Code	407
Local Phone Number	298-2000
Entity Incorporation, State or Country Code	DE
Document Annual Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
ICFR Auditor Attestation Flag	false
Entity Voluntary Filers	No
Auditor Firm ID	127
Auditor Name	PKF O'Connor Davies, LLP
Auditor Location	New York, New York
Amendment Description	This Amendment No. 1 (this “Amendment”) on Form 10-K/A is filed with respect to M-tron Industries, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022 (the “Form 10-K”), filed with the Securities and Exchange Commission (the “SEC”) on March 30, 2023. This Amendment updates the Form 10-K, which omitted certain information required by Part III (Items 10, 11, 12, 13 and 14) in reliance on General Instruction G(3) to Form 10-K, which provides that such information may be either incorporated by reference from the registrant’s definitive proxy statement or included in an amendment to Form 10-K, in either case filed with the SEC not later than 120 days after the end of the fiscal year. Since we intend to file our definitive proxy statement for our 2023 annual meeting of stockholders later this year, the timing of the filing of such definitive proxy statement will be outside this window for incorporation by reference. Accordingly, this Amendment is being filed solely to (i) amend Part III (Items 10, 11, 12, 13 and 14) of the Form 10-K to include the information required by such Items that was not included in the Form 10-K filed with the SEC on March 30, 2023, (ii) delete the reference on the cover of the Form 10-K to the incorporation by reference of portions of our definitive proxy statement into Part III of the Form 10-K, and (iii) file new certifications of our principal executive officer and principal financial officer as exhibits to this Amendment under Item 15 of Part IV hereof, pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). No financial statements are included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K; accordingly, paragraphs 3, 4 and 5 of the certifications have been omitted. Similarly, because no financial statements have been included in this Amendment, certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 have been omitted. This Amendment makes no changes to the Form 10-K except for those described above. This Amendment does not amend, update, or change the financial statements or any other items or disclosures contained in the Form 10-K and does not otherwise reflect events occurring after the original date of the Form 10-K; accordingly, this Amendment should be read in conjunction with our filings with the SEC subsequent to the filing of the Form 10-K. Unless indicated otherwise, throughout this Amendment, references to the "Company," "MtronPTI," "we," "us," or "our" mean M-tron Industries, Inc. and its subsidiaries, and references to “LGL” and “LGL Group” mean The LGL Group, Inc., the Company’s former parent.
Common Stock [Member]
Document Information [Line Items]
Trading Symbol	MPTI
Title of 12(b) Security	Common Stock, $0.01 par value
Security Exchange Name	NYSEAMER