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Note 11 - Income Taxes (Details) (USD $) | 12 Months Ended |
--- | --- | ---
May 26, 2013 | May 27, 2012 | May 29, 2011 | May 30, 2010
Note 11 - Income Taxes (Details) [Line Items] |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate | 35.00% |  |  |
Increase in Net Income Before Taxes | 59.00% | 140.00% |  |
Effective Income Tax Rate, Continuing Operations | 30.00% | 36.00% | 52.00% |
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax | $ 874,000 |  |  |
Deferred Tax Assets, Valuation Allowance | 783,000 | 419,000 |  |
Valuation Allowance, Deferred Tax Asset, Change in Amount | 364,000 |  |  |
Unrecognized Tax Benefits | 998,000 | 766,000 | 760,000 | 868,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 807,000 |  |  |
Federal [Member] |  |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |  |
Operating Loss Carryforwards | 8,800,000 |  |  |
California [Member] |  |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |  |
Operating Loss Carryforwards | 4,600,000 |  |  |
Other State [Member] |  |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |  |
Operating Loss Carryforwards | 15,200,000 |  |  |
Federal [Member] |  |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |  |
Deferred Tax Assets, Tax Credit Carryforwards, Research | 118,000 |  |  |
Deferred Tax Asset Recorded to Additional Paid in Capital | 1,200,000 |  |  |
California [Member] |  |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |  |
Deferred Tax Assets, Tax Credit Carryforwards, Research | 1,200,000 |  |  |
Deferred Tax Asset Recorded to Additional Paid in Capital | 338,000 |  |  |
Federal Therapeutic Drug [Member] |  |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |  |
Deferred Tax Assets, Tax Credit Carryforwards | $ 244,000 |  |  |

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- Definition The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Carryforwards -URI http://asc.fasb.org/extlink&oid=6506874 + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43-49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 17 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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