Accounting Policies, by Policy (Policies)	6 Months Ended
Dec. 31, 2012
Basis of Accounting, Policy [Policy Text Block]	The condensed balance sheet as of June 30, 2012, which has been derived from audited financial statements, and the unaudited interim condensed financial statements have been prepared by The L.S. Starrett Company (the “Company”) in accordance with accounting principles generally accepted in the United States of America for interim financial reporting. Accordingly, they do not include all of the information and notes required by generally accepted accounting principles for complete financial statements. These unaudited condensed financial statements, which, in the opinion of management, reflect all adjustments (including normal recurring adjustments) necessary for a fair presentation, should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended June 30, 2012. Operating results are not necessarily indicative of the results that may be expected for any future interim period or for the entire fiscal year. As discussed further in Note 3, on November 22, 2011, the Company acquired all the assets of Bytewise Development Corporation. The results of operations for this acquired business are included in the Company’s results of operations as presented herein since such date. The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States of America requires management to make judgments, assumptions and estimates that affect amounts reported in the consolidated financial statements and accompanying notes. Note 2 to the Company’s Consolidated Financial Statements included in the Annual Report on Form 10-K for the year ended June 30, 2012 describes the significant accounting policies and methods used in the preparation of the consolidated financial statements. There were no changes in any of the Company’s significant accounting policies during the six months ended December 31, 2012.

Accounting Policies, by Policy (Policies)

6 Months Ended

Dec. 31, 2012

Basis of Accounting, Policy [Policy Text Block]

The condensed balance sheet as of June 30, 2012, which has been derived from audited financial statements, and the unaudited interim condensed financial statements have been prepared by The L.S. Starrett Company (the “Company”) in accordance with accounting principles generally accepted in the United States of America for interim financial reporting. Accordingly, they do not include all of the information and notes required by generally accepted accounting principles for complete financial statements. These unaudited condensed financial statements, which, in the opinion of management, reflect all adjustments (including normal recurring adjustments) necessary for a fair presentation, should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended June 30, 2012. Operating results are not necessarily indicative of the results that may be expected for any future interim period or for the entire fiscal year.

As discussed further in Note 3, on November 22, 2011, the Company acquired all the assets of Bytewise Development Corporation. The results of operations for this acquired business are included in the Company’s results of operations as presented herein since such date.

The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States of America requires management to make judgments, assumptions and estimates that affect amounts reported in the consolidated financial statements and accompanying notes. Note 2 to the Company’s Consolidated Financial Statements included in the Annual Report on Form 10-K for the year ended June 30, 2012 describes the significant accounting policies and methods used in the preparation of the consolidated financial statements. There were no changes in any of the Company’s significant accounting policies during the six months ended December 31, 2012.