Consolidated Balance Sheets (Current Period Unaudited) Consolidated Balance Sheets (Current Period Unaudited) [Abstract] ASSETS ASSETS [Abstract] Current assets: Current assets: [Abstract] Cash and cash equivalents Investments Receivables Other current assets Total current assets Other assets Property and equipment, net Total assets LIABILITIES AND STOCKHOLDERS' EQUITY LIABILITIES AND STOCKHOLDERS' EQUITY [Abstract] Current liabilities: Current liabilities: [Abstract] Accounts payable Accrued expenses Current portion of notes payable Total current liabilities Notes payable Deferred rent Total liabilities Commitments and contingencies (Note 9) Stockholders' equity: Stockholders' equity: [Abstract] Preferred stock, $0.01 par value, 2,000,000 shares authorized, none issued Common stock, $0.01 par value, 15,000,000 shares authorized, 8,731,835 shares issued and 8,615,635 shares outstanding at September 30, 2012; 9,071,923 shares issued and 8,955,723 shares outstanding at December 31, 2011 Additional paid-in capital Accumulated deficit Treasury stock, at cost, 116,200 shares at September 30, 2012 and December 31, 2011 Total stockholders' equity Total liabilities and stockholders' equity Preferred stock, par value (in Dollars per share) Preferred stock, shares authorized Preferred stock, shares issued Common stock, par value (in Dollars per share) Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Treasury stock, shares Unaudited Consolidated Statements of Comprehensive Income Unaudited Consolidated Statements of Comprehensive Income [Abstract] Segment, Operating Activities [Domain] Restaurant sales Costs and expenses: Costs and expenses: [Abstract] Cost of sales Labor Rent payments associated with the leasing of real estate, including base, percentage, and straight-line rent, property taxes, and common area maintenance expenses. Also includes tenant improvement allowances which are recorded as a reduction of occupancy expense over the initial term of the lease. Occupancy Restaurant operating expenses General and administrative Gain on insurance recoveries Depreciation and amortization Total costs and expenses Income from operations Nonoperating income (expense): Nonoperating income (expense): [Abstract] Interest income and other, net Interest expense Income from continuing operations before provision for income taxes Provision for income taxes Income from continuing operations Loss from discontinued operations, net of tax Net income Net income per share – Basic: Net income per share – Basic: [Abstract] Income from continuing operations (in Dollars per share) Loss from discontinued operations, net of tax (in Dollars per share) Net income (in Dollars per share) Net income per share –Diluted: Net income per share –Diluted: [Abstract] Income from continuing operations (in Dollars per share) Loss from discontinued operations, net of tax (in Dollars per share) Net income (in Dollars per share) Weighted average shares used in computation: Weighted average shares used in computation: [Abstract] Basic (in Shares) Diluted (in Shares) Comprehensive income Unaudited Consolidated Statements of Cash Flows Unaudited Consolidated Statements of Cash Flows [Abstract] Operating activities Operating activities [Abstract] Net income Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities: [Abstract] Stock-based compensation expense Loss on disposal of assets Change in operating assets and liabilities: Change in operating assets and liabilities: [Abstract] Receivables Other current assets Accounts payable Accrued expenses Deferred rent Net cash provided by operating activities Investing activities Investing activities [Abstract] Purchase of property and equipment Decrease (increase) in other assets Net cash used in investing activities Financing activities Financing activities [Abstract] Borrowings on term loan Debt repayments Fees paid for credit facility Proceeds from issuance of common stock under the Employee Stock Purchase Plan and exercise of stock options and warrants Purchase and retirement of common stock Net cash (used in) provided by financing activities Net increase in cash and cash equivalents Cash and cash equivalents at the beginning of the period Cash and cash equivalents at the end of the period Supplemental disclosure of cash flow information Supplemental disclosure of cash flow information [Abstract] Cash paid for interest, net of capitalization Noncash investing activities Noncash investing activities [Abstract] The change in accounts payable related to the purchase of property and equipment. Decrease in accounts payable related to property and equipment Note 1 - Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Note 2 - Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Note 3 - Fair Value Measurements Fair Value Disclosures [Text Block] Note 4 - Net Income Per Share Earnings Per Share [Text Block] Note 5 - Accrued Expenses Accounts Payable and Accrued Liabilities Disclosure [Text Block] Note 6 - Credit Facility Debt Disclosure [Text Block] Note 7 - Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Note 8 - Stock Purchase and Retirement Program Stockholders' Equity Note Disclosure [Text Block] Note 9 - Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Accrued Liabilities [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Loss from Discontinued Operations, Net of Tax Loss from Discontinued Operations, Net of Tax [Abstract] Restaurant sales Loss from discontinued operations before income taxes Income tax benefit Loss from discontinued operations, net of tax Lease Termination and Exit Cost Accrual Lease Termination and Exit Cost Accrual [Abstract] Accrued lease termination, severance, relocation, and other exit costs associated with restaurant closure(s). Accrued Lease Termination and Exit Costs Accrued Lease Termination and Exit Costs The charge against earnings in the period for lease termination, severance, relocation, and other exit costs associated with restaurant closure(s). These costs can be part of discontinued operations. Additions Payments made during a period for lease termination, severance, relocation, and other exit costs associated with restaurant closure(s). Cash payments Assets Measured at Fair Value on a Recurring Basis Assets Measured at Fair Value on a Recurring Basis [Abstract] Fair Value, Measurements, Fair Value Hierarchy [Domain] Certificates of deposit December 31, 2011 December 31, 2011 [Abstract] Basic and Diluted Net Income Per Share Basic and Diluted Net Income Per Share [Abstract] Numerator: Numerator: [Abstract] Income from continuing operations (in Dollars) Loss from discontinued operations, net of tax (in Dollars) Net income (in Dollars) Denominator: Denominator: [Abstract] Weighted average shares — Basic (in Shares) Effect of dilutive stock options and warrants (in Shares) Weighted average shares — Diluted (in Shares) Basic net income per share: Basic net income per share: [Abstract] Income from continuing operations Loss from discontinued operations, net of tax Net income Diluted net income per share: Diluted net income per share: [Abstract] Income from continuing operations Loss from discontinued operations, net of tax Net income Accrued Expenses Accrued Expenses [Abstract] Accrued payroll Gift cards Sales taxes Lease termination accrual Business and income taxes Accrued occupancy Other Stock Options Fair Value Assumptions Stock Options Fair Value Assumptions [Abstract] Expected volatility Risk-free interest rate Expected option life (in years) Dividend yield Weighted average fair value per option granted (in Dollars per share) Stock Option Activity Stock Option Activity [Abstract] Outstanding options at December 31, 2011 Outstanding options at December 31, 2011 (in Dollars per share) Granted Granted (in Dollars per share) Forfeited Forfeited (in Dollars per share) Exercised Exercised (in Dollars per share) Outstanding options at September 30, 2012 Outstanding options at September 30, 2012 (in Dollars per share) Outstanding options at September 30, 2012 Outstanding options at September 30, 2012 (in Dollars) Exercisable at September 30, 2012 Exercisable at September 30, 2012 (in Dollars per share) Exercisable at September 30, 2012 Exercisable at September 30, 2012 (in Dollars) Number of Restaurants Number of Options Number of Statements Disclosure [Domain] Number of restaurant closed during a period. Write off of remaining deferred rent credit associated with the closure of a leased property. Deferred rent represents the cumulative difference between the rental payments required by a lease agreement and the rental expense recognized by the lessee on a straight-line basis. Business Exit Costs Number of Restaurants Closed Write-off of Deferred Rent Asset Impairment Charges Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Long-term Debt, Type [Domain] Maximum amount of borrowings per restaurant against the Credit Line for capital expenditures. Maximum amount of borrowings against the Credit Line for stock repurchases. The sum of earnings before taxes, interest, depreciation and amortization expense, and occupancy expense during a reporting period divided by the sum of occupancy expense, and principal and interest debt payments during the same reporting period. Earnings before taxes, interest, depreciation and amortization expense during the reporting period divided by total debt as of the end of the reporting period. The ratio of total net worth at the end of the reporting period and the sum of total debt and deferred rent at the end of the reporting period. Proceeds from Issuance of Long-term Debt (in Dollars) Debt Instrument, Periodic Payment (in Dollars) Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Notes Payable (in Dollars) Line of Credit Facility, Maximum Borrowing Capacity (in Dollars) Debt Instrument, Interest Rate, Stated Percentage Line of Credit Facility, Maximum Distribution per Location (in Dollars) Line of Credit Facility, Maximum Borrowing Capacity, for Stock Repurchases (in Dollars) Line of Credit Facility, Remaining Borrowing Capacity (in Dollars) Payments of Debt Issuance Costs (in Dollars) Unamortized Debt Issuance Expense (in Dollars) Fixed Charge Coverage Ratio, Minimum Interest Bearing Debt/EBITDA Ratio, Maximum Debt to Tangible Net Worth, Maximum Title of Individual with Relationship to Entity [Domain] Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employees and non-employee director the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option per quarter over a one year period for non employees directors and 25% per year for employees. Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the non-employee director the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option per quarter over a one year period. Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Share Based Compensation Arrangement, by Share Based Payment Award, Award Vesting Rights Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share Based Compensation Arrangement by Share Based Payment Award, Award Vesting Rights Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares) Share-based Compensation Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Maximum dollar amount authorized for stock repurchase and retirement program. Stock Repurchase Program, Amount Authorized to be Repurchased (in Dollars) Stock Repurchased During Period, Shares Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) Director [Member] Scenario [Axis] Fair Value, Inputs, Level 2 [Member] Scenario, Unspecified [Domain] Statement, Operating Activities Segment [Axis] Fair Value, Hierarchy [Axis] Long-term Debt, Type [Axis] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 3 [Member] Title of Individual [Axis] Line of Credit [Member] Segment, Continuing Operations [Member] Disclosure [Axis] Disclosure [Axis] Lease Termination Costs [Member] Lease Termination Costs [Member] From Grant Date [Member] From Grant Date [Member] Employee [Member] Employee [Member] For Stock Repurchase Program [Member] For Stock Repurchase Program [Member] Term Loan [Member] Term Loan [Member] Document and Entity Information [Abstract] DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlockAbstract LineOfCreditFacilityMaximumBorrowingCapacityForStockRepurchases DebtToTangibleNetWorthMaximum EarningsPerShareTextBlockAbstract AccountsPayableAndAccruedLiabilitiesDisclosureTextBlockAbstract LineOfCreditFacilityMaximumDistributionPerLocation OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlockAbstract StockholdersEquityNoteDisclosureTextBlockAbstract NumberOfRestaurantsClosed DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlockAbstract WriteOffOfDeferredRent CommitmentsAndContingenciesDisclosureTextBlockAbstract NumberOfOptions ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights1 DebtDisclosureTextBlockAbstract ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights2 LeaseTerminationAndExitCostsTableTextBlock FairValueDisclosuresTextBlockAbstract InterestBearingDebtEBITDARatioMaximum BusinessExitCostsPayments NumberOfStatements FixedChargeCoverageRatioMinimum StockRepurchaseProgramAmountAuthorizedToBeRepurchased Liabilities, Current Asset Impairment Charges Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Debt Instrument, Periodic Payment Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Net Cash Provided by (Used in) Investing Activities Document Period End Date Net Cash Provided by (Used in) Operating Activities Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Cash and Cash Equivalents, Period Increase (Decrease) Assets, Current Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Increase (Decrease) in Other Deferred Liability Earnings Per Share, Basic Amendment Flag Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Gain on Business Interruption Insurance Recovery Payments to Acquire Property, Plant, and Equipment Entity Central Index Key Debt Instrument, Interest Rate, Stated Percentage Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Commitments and Contingencies Disclosure [Text Block] Incremental Common Shares Attributable to Call Options and Warrants Net Cash Provided by (Used in) Financing Activities Increase (Decrease) in Receivables Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Schedule of Accrued Liabilities [Table Text Block] Entity Common Stock, Shares Outstanding Payments of Debt Issuance Costs Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Number of Restaurants Comprehensive Income (Loss), Net of Tax, Attributable to Parent Increase (Decrease) in Accounts Payable Repayments of Long-term Debt Notes Payable Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Unamortized Debt Issuance Expense Debt Instrument, Basis Spread on Variable Rate Entity Filer Category Document Fiscal Year Focus Entity Public Float Increase (Decrease) in Other Current Assets Treasury Stock Acquired, Average Cost Per Share Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Payments for (Proceeds from) Other Investing Activities Gain (Loss) on Disposition of Assets Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Entity Voluntary Filers Debt Disclosure [Text Block] Stockholders' Equity Note Disclosure [Text Block] Operating Income (Loss) Stock Repurchased During Period, Shares Disposal Group, Including Discontinued Operation, Revenue Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Liabilities and Equity Assets Entity Current Reporting Status Entity Registrant Name Earnings Per Share [Text Block] Line of Credit Facility, Remaining Borrowing Capacity Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Accounts Payable and Accrued Liabilities Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Payments for Repurchase of Common Stock Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Entity Well-known Seasoned Issuer Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Stockholders' Equity Attributable to Parent Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Amendment Description Document Type Increase (Decrease) in Accrued Liabilities Line of Credit Facility, Maximum Borrowing Capacity Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Treasury Stock, Value Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Earnings Per Share, Diluted Liabilities Current Fiscal Year End Date Fair Value, by Balance Sheet Grouping [Table Text Block] Document Fiscal Period Focus Fair Value Disclosures [Text Block] Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Interest Expense Statement [Table] Statement [Line Items]