2.2.0.25falsefalse006060 - Disclosure - Income Taxestruefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) USD ($) / shares $c00001http://www.sec.gov/CIK0000948846duration2011-01-01T00:00:002011-03-31T00:00:00u000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u002Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0u001Standardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0aai_NotesToFinancialStatementsAbstractaaifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseNotes to Financial Statements [Abstract]3false0us-gaap_IncomeTaxDisclosureTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 11pt; FONT-WEIGHT: bold">Note 6 &#8211; Income Taxes</font></div><div style="TEXT-INDENT: 0pt; DISPLAY: block"><br /></div><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 11pt">Our effective income tax rate was 32.6 percent for the three months ended March 31, 2011. Our effective tax rate differs from the 37.2 percent composite statutory tax rate (35 percent federal statutory rate plus the 2.2 percent effective state tax rate) due to changes in the valuation allowance on our deferred tax assets, certain expenses which are not deductible for income tax purposes, and non-recurring discrete items related to restricted stock vesting. Non-deductible expense items and discrete items tend to increase the effective tax rate when pre-tax income is reported and tend to decrease the effective tax rate when a pre-tax loss is reported. We reported a loss before income taxes during three months ended March 31, 2010; however, we did not recognize an income tax benefit in the statement of operations because the tax effect of the pre-tax loss was offset by a corresponding increase in the valuation allowance. A valuation allowance was required for deferred tax assets in excess of our deferred tax liabilities.</font></div><div style="TEXT-INDENT: 0pt; DISPLAY: block"><br /></div><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 11pt">Income tax benefits recorded on losses result in deferred tax assets for financial reporting purposes. We are required to provide a valuation allowance for deferred tax assets to the extent management determines that it is more likely than not that such deferred tax assets will ultimately not be realized. We expect to realize our deferred tax assets (including the deferred tax asset associated with loss carryforwards) through the reversal of existing temporary differences. As of March 31, 2011, our deferred tax liabilities exceeded our deferred tax assets and the $1.0 million valuation allowance related solely to capital loss carryforwards.<font style="DISPLAY: inline; FONT-SIZE: 11pt">&#160;</font>Regardless of the financial accounting for income taxes, our net operating loss carryforwards currently are available for use on our income tax returns to offset future taxable income. If AirTran is acquired by Southwest, the Merger is expected to result in an ownership change for purposes of Section 382 of the Internal Revenue Code. The utilization of NOL&#8217;s to offset future taxable income would be subject to an annual limitation under Section 382. Any unused NOL&#8217;s in excess of the annual limitation may be carried over to later years.</font></div>Note 6 &#8211; Income TaxesOur effective income tax rate was 32.6 percent for the three months ended March 31, 2011. Our effective tax rate differs from thefalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescription containing the entire income tax disclosure. Examples 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. This element may be used as a single block of text to encapsulate the entire disclosure including data and tables.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 136, 172 Reference 3: 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 falsefalseIncome Tax Disclosure [Text Block]12Income TaxesUnKnownUnKnownUnKnownUnKnownfalsetrue