Summary of Significant Accounting Policies - Promotional Allowances, External Advertising, Asset Impairments and Stock-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Stock-based Compensation
Share-based compensation	$ 358	$ 78
Promotional allowances
Cost of complimentary F&B (A)	$ 2,655	$ 2,404
Average cost of F&B sold (B) (as a percent)	36.10%	36.70%
Hypothetical retail value of F&B (A/B)	$ 7,355	$ 6,550
Cost of hotel accommodations	141	138
Total hypothetical retail value	7,496	6,688
External Advertising
External advertising expenses	140	175
Impairment of Long-Lived Assets
Impairment losses for long-lived assets	$ 0	$ 0