Document And Entity Information (USD $)	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Aug. 31, 2014 Common Class A [Member]	Aug. 31, 2014 Common Class B [Member]
Document Information [Line Items]
Entity Registrant Name	STARRETT L S CO
Document Type	10-K
Current Fiscal Year End Date	--06-30
Entity Common Stock, Shares Outstanding			6,174,977	789,722
Entity Public Float		$ 88,346,710
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	Jun. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY