2.4.0.81070 - Disclosure - Income Taxestruefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001171014duration2013-01-01T00:00:002013-07-01T00:00:001true 1us-gaap_IncomeTaxDisclosureAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Income Taxes2false 2us-gaap_IncomeTaxDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Note 7 — Income Taxes   We have recorded a full valuation allowance to reduce our deferred tax assets related primarily to net operating loss carryforwards. Our determination of the valuation allowance is based on an evaluation of whether it is more likely than not that we will be able to utilize the net operating loss carryforwards, based on the Company’s operating results. A positive adjustment to income will be recorded in future years if we determine that we could realize these deferred tax assets.   As of December 31, 2012, we had net operating loss (“NOL”) carryforwards of approximately $212.9 million for U.S. federal income tax purposes. Under the Internal Revenue Code, an “ownership change” with respect to a corporation can significantly limit the amount of pre-ownership change NOLs and certain other tax assets that the corporation may utilize after the ownership change to offset future taxable income, possibly reducing the amount of cash available to the corporation to satisfy its obligations. An ownership change generally would occur if the aggregate stock ownership of holders of at least 5% of our stock increases by more than 50 percentage points over the preceding three-year period. We do not believe that the rights offering and the related private placement of common stock that we completed in fiscal 2010 have triggered an ownership change. The purchase of shares of our common stock pursuant to the rights offering and private placement of common stock that we completed during the third quarter of fiscal 2012 may trigger an ownership change with respect to our common stock. In addition, a limitation would not have an impact on our consolidated financial statements as we have recorded a valuation allowance for the entire amount of our deferred tax assets.   We adopted ASC 740-10, Income Taxes, which prescribes a comprehensive financial statement model of how a company should recognize, measure, present and disclose uncertain tax positions that the company has taken or expects to take in its income tax returns. The standard requires that only income tax benefits that meet the “more likely than not” recognition threshold be recognized or continue to be recognized on the effective date. Initial recognition amounts would have been reported as a cumulative effect of a change in accounting principle.   Should the Company need to accrue interest or penalties on uncertain tax positions, it would recognize the interest as interest expense and the penalties as a general and administrative expense.   Due to our unexpired NOLs, Cosi could be subject to IRS income tax examination for the tax year 1996 and all subsequent years. We could also be subject to state income tax examinations in certain states where we have unexpired NOLs.   </div>falsefalsefalsenonnum:textBlockItemTypenaThe 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.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=6881521&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 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 136, 172 -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 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43, 44, 45, 46, 47, 48, 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. false0Income TaxesfalseIncome TaxesUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.getcosi.com/role/DisclosureIncomeTaxes12