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Note 8 - Income Taxes | 6 Months Ended
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Nov. 24, 2013
Income Tax Disclosure [Abstract] |
Income Tax Disclosure [Text Block] | 8. Income Taxes The provision for income taxes for the three and six months ended November 24, 2013 was $1.9 million and $4.3 million, respectively. The effective tax rate for the six months ended November 24, 2013 was 34% compared to 29% for the same periods in fiscal year 2013. The effective tax rate for the six months ended November 24, 2013 differs from the statutory federal income tax rate of 35% as a result of several factors, including state taxes, domestic manufacturing deductions, non-deductible stock-based compensation expense and the benefit of federal and state research and development credits. As of November 24, 2013 and May 26, 2013, the Company had unrecognized tax benefits of approximately $1.0 million. Included in the balance of unrecognized tax benefits as of November 24, 2013 and May 26, 2013 is approximately $854,000 and $807,000, respectively, of tax benefits that, if recognized, would result in an adjustment to the Company’s effective tax rate. The Company does not expect its unrecognized tax benefits to change significantly within the next twelve months. The Company classifies interest and penalties related to uncertain tax positions as a component of its provision for income taxes. The Company has accrued an insignificant amount of interest and penalties relating to the income tax on the unrecognized tax benefits as of November 24, 2013 and May 26, 2013. Due to tax attribute carryforwards, the Company is subject to examination for tax years 1997 forward for U.S. tax purposes. The Company is also subject to examination in various state jurisdictions for tax years 1998 forward, none of which were individually material.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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