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Related Party Transactions (Details Textual) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | [1] | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenues | $ 210,125,000 | [1] | $ 210,337,000 | $ 216,543,000 | $ 214,789,000 | $ 183,710,000 | [1],[2] | $ 107,660,000 | $ 109,885,000 | $ 105,883,000 | $ 851,794,000 | $ 507,138,000 | $ 399,998,000
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Lease for tavern locations remaining terms range | 15 years |  |  |  |  |  |  |  |  |  | 15 years |  |
Consulting agreement expenses, related party |  |  |  |  |  |  |  |  |  |  |  |  | 200,000
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Lease for tavern locations remaining terms range | 1 year |  |  |  |  |  |  |  |  |  | 1 year |  |
Mr. Sartini [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Due to related parties | $ 100,000 |  |  |  |  | 100,000 |  |  |  |  | $ 100,000 | 100,000 |
Reimbursement expense paid |  |  |  |  |  |  |  |  |  |  | 600,000 | 200,000 | 100,000
Executive Vice President and Chief Legal Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Due to related parties | 0 |  |  |  |  | 0 |  |  |  |  | 0 | 0 |
Net revenues |  |  |  |  |  |  |  |  |  |  | $ 1,000,000 | $ 1,100,000 | $ 900,000
Type of Revenue [Extensible List] |  |  |  |  |  |  |  |  |  |  | us-gaap:CasinoMember | us-gaap:CasinoMember | us-gaap:CasinoMember
Gaming Expenses |  |  |  |  |  |  |  |  |  |  | $ 900,000 | $ 1,000,000 | $ 800,000
Type of Cost, Good or Service [Extensible List] |  |  |  |  |  |  |  |  |  |  | us-gaap:CasinoMember | us-gaap:CasinoMember | us-gaap:CasinoMember
Due from related parties |  |  |  |  |  | 0 |  |  |  |  |  | $ 0 |
Lyle A. Berman [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Due to related parties | 0 |  |  |  |  | 0 |  |  |  |  | $ 0 | 0 |
Annual director fees |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  |
Consulting agreement expiry date |  |  |  |  |  |  |  |  |  |  | Jul. 31, 2018 |  |
Lyle A. Berman [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Consulting agreement expenses, related party |  |  |  |  |  |  |  |  |  |  | $ 100,000 | 100,000 |
Office Headquarters and Tavern Lease [Member] | Mr. Sartini [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of counterparty ownership by related party |  |  |  |  |  |  |  |  |  |  | 33.00% |  |
Office Headquarters and Tavern Lease [Member] | Mr. Sartini's Immediate Family Members [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of counterparty ownership by related party |  |  |  |  |  |  |  |  |  |  | 5.00% |  |
Office Headquarters and Tavern Lease [Member] | Stephen Arcana [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of counterparty ownership by related party |  |  |  |  |  |  |  |  |  |  | 3.00% |  |
Office Headquarters [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Lease expiration date |  |  |  |  |  |  |  |  |  |  | Dec. 31, 2030 |  |
Related party transaction, due from (to) related party | 0 |  |  |  |  | 0 |  |  |  |  | $ 0 | 0 |
Office Headquarters [Member] | Mr. Sartini [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amounts of transaction |  |  |  |  |  |  |  |  |  |  | 1,300,000 | 1,200,000 | $ 1,100,000
Due to related parties | 0 |  |  |  |  | 0 |  |  |  |  | 0 | 0 |
Related party transaction, due from (to) related party | $ 0 |  |  |  |  | 0 |  |  |  |  | $ 0 | 0 |
Tavern Leases [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Lease for tavern locations remaining terms range | 9 years |  |  |  |  |  |  |  |  |  | 9 years |  |
Tavern Leases [Member] | Mr. Sartini [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amounts of transaction |  |  |  |  |  |  |  |  |  |  | $ 400,000 | 900,000 | 1,300,000
Due to related parties | $ 0 |  |  |  |  | 0 |  |  |  |  | 0 | 0 |
Related party transaction, due from (to) related party | $ 0 |  |  |  |  | $ 0 |  |  |  |  | 0 | 0 |
Office Headquarters Lease [Member] | Mr. Sartini [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Rental income for sublet portion |  |  |  |  |  |  |  |  |  |  | $ 100,000 | $ 100,000 | $ 100,000
[1] | For the third and fourth quarters of 2018 and fourth quarter of 2017, the Company generated a net loss. Accordingly, the effect of all potential common share equivalents was anti-dilutive, and therefore all such shares were excluded from the computation of diluted weighted average shares outstanding and diluted loss per share for this period. The amount of potential common share equivalents was 1,870 and 1,028 for the third and fourth quarters of 2018, respectively. The amount of potential common share equivalents was 2,373 for the fourth quarter of 2017.
[2] | Results included the operating results of American from October 20, 2017, following the completion of the American Acquisition.

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