Document And Entity Information	3 Months Ended
	Sep. 30, 2014	Oct. 31, 2014 Common Class A [Member]	Oct. 31, 2014 Common Class B [Member]
Document Information [Line Items]
Entity Registrant Name	STARRETT L S CO
Document Type	10-Q
Current Fiscal Year End Date	--06-30
Entity Common Stock, Shares Outstanding		6,188,480	784,058
Amendment Flag	false
Entity Central Index Key	0000093676
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Document Period End Date	Sep. 30, 2014
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1