Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows provided by (used in) operating activities:
Net loss	$ (46,344,000)	$ (24,197,000)	$ (36,610,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	1,517,000	1,341,000	1,350,000
Amortization of debt issuance costs	2,091,000	105,000	0
Provision / (Recovery) for doubtful accounts	0	0	10,000
Non-cash interest expense	3,846,000	231,000	1,241,000
Loss on disposal of property and equipment	42,000	5,000	1,000
Stock-based compensation	2,755,000	2,722,000	596,000
Changes in operating assets and liabilities:
Restricted cash - NYSGC Lottery and Purse Accounts	371,000	268,000	354,000
Accounts receivable	(352,000)	235,000	(117,000)
Prepaid expenses and other current assets	785,000	506,000	(544,000)
Other assets	0	0	3,000
Accounts payable	418,000	1,024,000	(962,000)
Accrued expenses and other current liabilities	938,000	4,839,000	3,298,000
Net cash used in operating activities	(33,933,000)	(12,921,000)	(31,380,000)
Cash flows provided by (used in) investing activities:
Purchase of property and equipment	(2,007,000)	(1,974,000)	(767,000)
Capitalized Development Project costs	(300,277,000)	(157,305,000)	(4,074,000)
Restricted cash - racing capital improvement	(110,047,000)	(10,912,000)	(15,472,000)
Other	11,000	0	0
Cash collateral for deposit bond	(20,000,000)	(15,000,000)	0
License fee payment for the Casino	0	(51,000,000)	0
Net cash used in investing activities	(432,306,000)	(236,196,000)	(20,298,000)
Cash flows provided by (used in) financing activities:
Proceeds from related party equity contribution	32,000,000	0	0
Proceeds from rights offering, net of expenses	0	286,003,000	49,528,000
Series E Preferred Stock and dividend redemption	0	(30,711,000)	(533,000)
Series B Preferred Stock dividend payment	(128,000)	(263,000)	0
Proceeds from exercise of stock options and warrants	16,000	54,000	2,660,000
Payment of debt issuance costs and Interest Rate Cap fees	(32,006,000)	(1,278,000)	0
Other payments	(275,000)	(88,000)	0
Net cash provided by financing activities	465,607,000	253,717,000	51,655,000
Net increase (decrease) in cash and cash equivalents	(632,000)	4,600,000	(23,000)
Cash and cash equivalents, beginning of period	11,012,000	6,412,000	6,435,000
Cash and cash equivalents, end of period	10,380,000	11,012,000	6,412,000
Supplemental disclosures of cash flow information:
Interest paid	38,755,000	407,000	1,398,000
Income taxes paid	0	0	0
Non-cash investing and financing activities:
Common stock issued in settlement of preferred stock dividends	0	0	159,000
Conversion of long-term loan, related party into equity	35,875,000	17,426,000	0
Project development costs included in accrued expenses	71,713,000	40,783,000	6,331,000
Racing Capital Improvements [Member]
Cash flows provided by (used in) investing activities:
Restricted cash - racing capital improvement	14,000	(5,000)	15,000
Term Loan Facility, Term B Loan [Member]
Cash flows provided by (used in) financing activities:
Proceeds from issuance of debt	450,000,000	0	0
Bangkok Bank Loan [Member]
Cash flows provided by (used in) financing activities:
Proceeds from issuance of debt	$ 16,000,000	$ 0	$ 0