Document and Entity Information Statement [Table] Class of Stock [Axis] Class Of Stock [Domain] Class of Stock [Domain] Common Class A [Member] Class A Common Stock Statement [Line Items] Document and Entity Information Stockholders' Equity Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Current Reporting Status Entity Filer Category Document Fiscal Year Focus Document Fiscal Period Focus Entity Common Stock, Shares Outstanding CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS Revenues [Abstract] Revenues: Casino Revenue Gaming Other Revenue, Net Other operating Revenues Total revenues Operating Expenses [Abstract] Expenses: Casino Expenses Gaming Other Cost and Expense, Operating Other operating General and Administrative Expense General and administrative Depreciation Depreciation Operating Expenses Total expenses Operating Income (Loss) Operating earnings Interest Expense Interest expense Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Loss before income taxes Income Tax Expense (Benefit) Income tax expense Net Income (Loss) Attributable to Parent Net loss Net loss Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax Change in pension net actuarial loss and prior service cost, net of income taxes Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized (loss) gain on available-for-sale securities, net of income taxes Unrealized loss on available-for-sale securities, net of income tax benefit of $1 Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive loss Earnings Per Share [Abstract] Net loss per common share: Earnings Per Share, Basic Basic (in dollars per share) Earnings Per Share, Diluted Diluted (in dollars per share) CONSOLIDATED BALANCE SHEETS Classification of common stock that has no class, representing ownership interest in a corporation. Common No Class [Member] Common Stock Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash, end of period Cash, beginning of period Cash Accounts Receivable, Net, Current Accounts receivable Amount due from state agencies, within one year of the balance sheet date (or the normal operating cycle, whichever is longer). Due from State Agency, Current Due from State of Delaware Inventory, Net Inventories Prepaid Expense and Other Assets, Current Prepaid expenses and other Due from Affiliate, Current Receivable from Dover Motorsports, Inc. Receivable from DVD Income Taxes Receivable Income taxes receivable Assets, Current Total current assets Property, Plant and Equipment, Net Property and equipment, net Other Assets, Noncurrent Other assets Deferred Tax Assets, Net, Noncurrent Deferred income taxes Assets Total assets Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Carrying value as of the balance sheet date of obligations incurred and payable to horsemen for purses earned on harness races. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Purses Due Horsemen, Current Purses due horsemen Accrued Liabilities, Current Accrued liabilities Deferred Revenue, Current Deferred revenue Line of Credit, Current Revolving line of credit Liabilities, Current Total current liabilities Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent Liability for pension benefits Liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies (see Notes to the Consolidated Financial Statements) Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity: Preferred Stock, Value, Issued Preferred stock, $0.10 par value; 1,000,000 shares authorized; shares issued and outstanding: none Common Stock, Value, Issued Common stock Additional Paid in Capital Additional paid-in capital Retained Earnings (Accumulated Deficit) Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Accumulated other comprehensive loss Stockholders' Equity Attributable to Parent Balance at the end of the period Balance at the beginning of the period Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Issued Preferred stock, shares issued Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash provided by operating activities: Amortization of Financing Costs Amortization of credit facility origination fees Share-based Compensation Stock-based compensation Deferred Income Tax Expense (Benefit) Deferred income taxes Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable The increase (decrease) during the reporting period in amount due from the state agency within one year (or one business cycle). Increase (Decrease) in Due from State Agency, Current Due from State of Delaware Increase (Decrease) in Inventories Inventories Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other The increase (decrease) in current obligations or receivables (due within one year or one operating cycle) owed to or to be collected from the entity that is controlling, under the control of, or within the same control group as the reporting entity by means of direct or indirect ownership. Increase (Decrease) in Due to and from Affiliates Current Receivable from/payable to Dover Motorsports, Inc. Increase (Decrease) in Income Taxes Receivable Income taxes receivable Increase (Decrease) in Accounts Payable Accounts payable The increase (decrease) during the reporting period in the carrying value as of the balance sheet date of obligations incurred and payable to horsemen for purses earned on harness races. Increase (Decrease) in Purses Due Horsemen Current Purses due horsemen Increase (Decrease) in Accrued Liabilities Accrued liabilities Increase (Decrease) in Deferred Revenue Deferred revenue Increase (Decrease) in Pension Plan Obligations Liability for pension benefits Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Investing activities: Payments to Acquire Property, Plant, and Equipment Capital expenditures Payments to Acquire Available-for-sale Securities Purchase of available-for-sale securities Proceeds from Sale of Available-for-sale Securities Proceeds from sale of available-for-sale securities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Financing activities: Proceeds from Long-term Lines of Credit Borrowings from revolving line of credit Repayments of Long-term Lines of Credit Repayments of revolving line of credit Payments for Repurchase of Common Stock Repurchase of common stock Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash used in financing activities Net Cash Provided by (Used in) Continuing Operations Net (decrease) increase in cash Supplemental Cash Flow Elements [Abstract] Supplemental information: Interest Paid Interest paid Income Taxes Paid, Net Income tax payments/(refunds received) Represents the increase (decrease) in accounts payable for capital expenditures. Increase (Decrease) in Accounts Payable for Capital Expenditures Change in accounts payable for capital expenditures Basis of Presentation Basis of Accounting [Text Block] Basis of Presentation Pertains to Business Operations. Business Operations Nature of Operations [Text Block] Business Operations Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Credit Facility Debt Disclosure [Text Block] Credit Facility Pension Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Pension Plans Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Fair Value Measurements Fair Value Disclosures [Text Block] Fair Value Measurements Related Party Transactions Related Party Transactions Disclosure [Text Block] Related Party Transactions Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Property, Plant and Equipment, Policy [Policy Text Block] Property and equipment Disclosure of accounting policy related to the point loyalty program for the entity's customers. Point Loyalty Program [Policy Text Block] Point loyalty program Revenue Recognition, Sales of Services [Policy Text Block] Revenue and expense recognition Advertising Costs, Policy [Policy Text Block] Advertising costs Earnings Per Share, Policy [Policy Text Block] Net loss per common share Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Accounting for stock-based compensation New Accounting Pronouncements, Policy [Policy Text Block] Recent accounting pronouncements Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of the computation of EPS Schedule of Net Benefit Costs [Table Text Block] Schedule of components of net periodic pension benefit Schedule of Stockholders Equity [Table Text Block] Schedule of changes in the components of stockholders' equity Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of accumulated other comprehensive loss Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Summary of valuation of financial instrument pricing levels Concentration Risk [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Aggregate revenue during the period from total gaming sales in the normal course of business, after deducting returns, allowances and discounts, when it serves as a benchmark in a concentration of risk calculation. Gaming Sales [Member] Gaming win Aggregate revenue during the period from Capital Club member gaming sales in the normal course of business, after deducting returns, allowances and discounts, when it serves as a benchmark in a concentration of risk calculation. Sales From Capital Club Member Gaming [Member] Capital Club member gaming win Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Geographic Concentration Risk [Member] Geographic concentration risk Geographical [Axis] Segment Geographical [Domain] Geographical [Domain] M [D] Maryland patrons Represents information pertaining to the geographic area which is out of a specific state. Out Of State [Member] Out of state patrons Disclosure related to the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. Also information about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward. Business Operations [Abstract] Business Operations Represents the area of the casino. Area of Casino Area of casino (in square feet) Represents the number of retail outlets. Number of Retail Outlets Number of retail outlets Represents the number of rooms in the hotel operated by the entity. Number of Rooms in Hotel Number of rooms in AAA Four Diamond hotel Represents the number of licensed agents under the Delaware State Lottery Code. Licensed Agents Number under Delaware State Lottery Code Number of Licensed Agents under Delaware State Lottery Code Represents the number of consecutive years for which annual license has been received from the Delaware Harness Racing Commission. Number of Consecutive Years for which Annual License has been Received Number of consecutive years for which annual license has been received from the Harness Racing Commission Risks and Uncertainties Concentration Risk, Percentage Estimated percentage of gaming win attributable to patrons Derivative [Table] Property and equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation Point Loyalty Program [Abstract] Point loyalty program Customer Loyalty Program Liability, Current Amount of points redeemable for services and merchandise Revenue and Expense Recognition [Abstract] Revenue and expense recognition Promotional Allowances Goods and services provided without charge to customers as promotional items Marketing and Advertising Expense [Abstract] Advertising costs Advertising Expense Advertising expenses Income (Loss) from Operations before Extraordinary Items, Per Basic and Diluted Share [Abstract] Net loss per common share - basic and diluted: Net Income (Loss) Available to Common Stockholders, Diluted Net loss available to common stockholders Weighted Average Number of Shares Outstanding, Basic and Diluted Weighted-average shares outstanding - basic and diluted Earnings Per Share, Basic and Diluted Net loss per common share - basic and diluted Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Options outstanding (in shares) Payments of Ordinary Dividends Dividends paid Share-based Compensation [Abstract] Accounting for stock-based compensation Allocated Share-based Compensation Expense Stock-based compensation expense for restricted stock awards The total recognized tax expense related to compensation cost for equity-based payment arrangements recognized in income during the period. Employee Service Share-based Compensation, Tax Expense from Compensation Expense Income tax expense related to vesting of restricted stock awards Line of Credit Facility [Table] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Line Of Credit [Member] Credit facility Range [Axis] Range [Member] Range [Domain] Minimum [Member] Minimum Maximum [Member] Maximum Line of Credit Facility [Line Items] Credit Facility Line of Credit Facility, Maximum Borrowing Capacity Maximum borrowing capacity Debt Instrument, Description of Variable Rate Basis Variable interest rate base Debt Instrument, Basis Spread on Variable Rate Percentage points added to the reference rate Line of Credit Facility, Amount Outstanding Outstanding borrowings Debt Instrument, Interest Rate, Basis for Effective Rate Interest rate on the amount outstanding (as a percent)