CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities:
Net earnings (loss)	$ 786,000	$ 1,873,000	$ (706,000)
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Depreciation	7,743,000	8,375,000	9,128,000
Amortization of credit facility origination fees	89,000	111,000	133,000
Stock-based compensation	326,000	375,000	580,000
Deferred income taxes	(36,000)	(508,000)	(723,000)
Impairment charge			358,000
Changes in assets and liabilities:
Accounts receivable	(581,000)	912,000	410,000
Due from State of Delaware	667,000	(694,000)	967,000
Inventories	2,000	(129,000)	174,000
Prepaid expenses and other	204,000	(146,000)	154,000
Receivable from/payable to Dover Motorsports, Inc.	(51,000)	66,000	(26,000)
Income taxes receivable	99,000	(197,000)	114,000
Accounts payable	149,000	(662,000)	(505,000)
Purses due horsemen	176,000	556,000	(1,061,000)
Accrued liabilities	1,149,000	211,000	(2,369,000)
Deferred revenue	(47,000)	19,000	(74,000)
Liability for pension benefits	(320,000)	(443,000)	(274,000)
Net cash provided by operating activities	10,355,000	9,719,000	6,280,000
Investing activities:
Capital expenditures	(2,812,000)	(1,651,000)	(900,000)
Purchase of available-for-sale securities	(55,000)	(16,000)	(35,000)
Proceeds from the sale of available-for-sale securities	49,000	8,000	26,000
Proceeds from sale of property and equipment		25,000
Net cash used in investing activities	(2,818,000)	(1,634,000)	(909,000)
Financing activities:
Borrowings from revolving line of credit	46,850,000	52,060,000	94,530,000
Repayments of revolving line of credit	(53,100,000)	(59,570,000)	(102,560,000)
Repurchase of common stock	(66,000)	(65,000)	(104,000)
Credit facility fees	(40,000)	(93,000)	(108,000)
Net cash used in financing activities	(6,356,000)	(7,668,000)	(8,242,000)
Net increase (decrease) in cash	1,181,000	417,000	(2,871,000)
Cash, beginning of year	10,496,000	10,079,000	12,950,000
Cash, end of year	11,677,000	10,496,000	10,079,000
Supplemental information:
Interest paid	778,000	1,108,000	1,589,000
Income tax payments, net of refunds received	569,000	1,547,000	$ 569,000
Change in accounts payable for capital expenditures	$ 220,000	$ 67,000