Document And Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2018	Oct. 10, 2018	Dec. 31, 2017
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Entity Registrant Name	Truett-Hurst, Inc.
Entity Central Index Key	0001564709
Current Fiscal Year End Date	--06-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Shell Company	false
Entity Public Float			$ 9,286,813
Trading Symbol	THST
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		4,575,680
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		6