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Income Taxes - Total Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | $ 6,200 |
Federal |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 3,099 | $ 12,629
Deferred income related to key money | 2,549 | 5,313
Alternative minimum tax credit carryforwards | 169 | 0
Other | 355 | 296
Depreciation and amortization | (8,889) | (14,535)
Deferred tax assets, net |  | 3,703
Deferred tax liabilities, net | (2,717) |
State |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 3,126 | 3,021
Deferred income related to key money | 801 | 816
Alternative minimum tax credit carryforwards | 81 | 71
Other | 111 | 45
Depreciation and amortization | (2,803) | (2,231)
Less: Valuation allowance | (400) | (400)
Deferred tax assets, net | 916 | 1,322
Foreign (USVI) |  |
Operating Loss Carryforwards [Line Items] |  |
Deferred income related to key money | 95 | 1,278
Other | 1 | 2
Depreciation and amortization | (796) |
Depreciation and amortization |  | 508
Land basis recorded in purchase accounting | (2,617) | (4,260)
Deferred tax liabilities, net | $ (3,317) | $ (2,472)

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