Document And Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2024	Aug. 20, 2024	Dec. 29, 2023
Document Information [Line Items]
Entity Central Index Key	0000100378
Entity Registrant Name	TWIN DISC INC
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	1-7635
Entity Incorporation, State or Country Code	WI
Entity Tax Identification Number	39-0667110
Entity Address, Address Line One	222 East Erie Street, Suite 400
Entity Address, City or Town	Milwaukee
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	53202
City Area Code	262
Local Phone Number	638-4000
Title of 12(b) Security	Common Stock (No Par Value)
Trading Symbol	TWIN
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	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 179,313,320
Entity Common Stock, Shares Outstanding		14,106,669
Auditor Firm ID	49
Auditor Name	RSM US LLP
Auditor Location	Milwaukee, Wisconsin