Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows provided by (used in) operating activities:
Net loss	$ (24,197,000)	$ (36,610,000)	$ (23,912,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	1,341,000	1,350,000	1,324,000
Amortization of deferred financing costs	105,000	0	0
Provision / (Recovery) for doubtful accounts	0	10,000	(5,000)
Non-cash interest expense	231,000	1,241,000	7,680,000
Loss on disposal of property and equipment	5,000	1,000	1,000
Stock-based compensation	2,722,000	596,000	636,000
Changes in operating assets and liabilities:
Restricted cash-NYSGC Lottery and Purse Accounts	268,000	354,000	(633,000)
Accounts receivable	235,000	(117,000)	135,000
Prepaid expenses and other current assets	506,000	(544,000)	(1,274,000)
Other assets	0	3,000	91,000
Accounts payable	1,024,000	(962,000)	(350,000)
Accrued expenses and other current liabilities	4,839,000	3,298,000	815,000
Net cash used in operating activities	(12,921,000)	(31,380,000)	(15,492,000)
Cash flows provided by (used in) investing activities:
Purchase of property and equipment	(1,974,000)	(767,000)	(1,542,000)
Capitalized Development Project costs	(157,305,000)	(4,074,000)	0
Restricted cash—racing capital improvement	(10,912,000)	(15,472,000)	0
Cash collateral for deposit bond	(15,000,000)	0	0
License fee payment for the casino project	(51,000,000)	0	0
Net cash used in investing activities	(236,196,000)	(20,298,000)	(1,549,000)
Cash flows provided by (used in) financing activities:
Proceeds from rights offering, net of expenses	286,003,000	49,528,000	13,180,000
Series E Preferred Stock and dividend redemption	(30,711,000)	(533,000)	0
Series B Preferred Stock dividend payment	(263,000)	0	0
Proceeds from exercise of stock options and warrants	54,000	2,660,000	2,770,000
Deferred financing costs	(1,278,000)	0	0
Other payments	(88,000)	0	0
Net cash provided by financing activities	253,717,000	51,655,000	15,950,000
Net increase (decrease) in cash and cash equivalents	4,600,000	(23,000)	(1,091,000)
Cash and cash equivalents, beginning of period	6,412,000	6,435,000	7,526,000
Cash and cash equivalents, end of period	11,012,000	6,412,000	6,435,000
Supplemental disclosures of cash flow information:
Interest paid	407,000	1,398,000	1,330,000
Income taxes paid	0	0	0
Noncash investing and financing activities:
Common stock issued in settlement of preferred stock dividends	0	159,000	218,000
Conversion of long-term loan, related party into equity	17,426,000	0	0
Project development costs included in accrued expenses	40,783,000	6,331,000	0
Racing Capital Improvements [Member]
Cash flows provided by (used in) investing activities:
Restricted cash—racing capital improvement	$ (5,000)	$ 15,000	$ (7,000)