2.4.0.81040 - Disclosure - Asset Impairmentstruefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001171014duration2013-01-01T00:00:002013-07-01T00:00:001true 1us-gaap_AssetImpairmentChargesAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Asset Impairments2false 2us-gaap_AssetImpairmentChargesTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Note 4 — Asset Impairments   In accordance with FASB Accounting Standards Codification Topic 360 (ASC Topic 360), Property, Plant & Equipment, we evaluate possible impairments at the individual restaurant level periodically and record an impairment loss whenever we determine impairment factors are present. We consider a history of poor financial operating performance to be the primary indicator of potential impairment for individual restaurant locations. We determine whether a restaurant location is impaired based on expected undiscounted cash flows, generally for the remainder of the lease term, and then determine the impairment charge based on discounted cash flows for the same period. Restaurants are not considered for impairment during the period before they enter the comparable restaurant base, unless specific circumstances warrant otherwise.   During the three and six months ended July 1, 2013, we recorded asset impairment and disposal charges of approximately $0.4 million and $0.7 million, respectively. We did not record any asset impairment and disposal charges during the three and six months of fiscal 2012.   </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for the details of the charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Disclosure may also include a description of the impaired asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired asset is reported.No definition available.false0Asset ImpairmentsfalseAsset ImpairmentsUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.getcosi.com/role/DisclosureAssetImpairments12