Summary of Selected Significant Accounting Policies (Details 3) In Thousands, except Share data, unless otherwise specified	0 Months Ended					3 Months Ended		6 Months Ended		12 Months Ended				6 Months Ended			6 Months Ended
	Mar. 12, 2014 USD ($)	Mar. 07, 2014 USD ($)	Jan. 09, 2014 USD ($)	Nov. 12, 2013	Jan. 01, 2002	Jun. 30, 2014 USD ($)	Jun. 30, 2013 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2013 USD ($)	Dec. 31, 2013 USD ($)	Jan. 01, 2003 USD ($)	Jan. 01, 2003 CZK	Jun. 30, 1998	Jun. 30, 2014 German reporting unit USD ($)	Jan. 01, 2003 German reporting unit USD ($)	Jan. 01, 2003 German reporting unit CZK	Jun. 30, 2014 Austrian reporting unit USD ($)	Jan. 01, 2003 Austrian reporting unit USD ($)	Jan. 01, 2003 Austrian reporting unit CZK
Impact of foreign currency translation on goodwill
Applicable Foreign Exchange Rate ("FX")						20.1100		20.1100					33.8830
Residual balance						$ 6,030		$ 6,030			$ 3,579	121,267		$ 5,125	$ 3,042	103,072	$ 905	$ 537	18,195
Net cumulative change to goodwill due to foreign currency translation								2,451						2,083			368
Period over which goodwill was amortized					15 years
Stock-based Compensation
Award expenses								0	0
Stock repurchase program
Shares authorized for repurchase				500,000
Period over which shares is authorized to repurchase				12 months
Total Number of Shares Purchased	300	300	100
Average Price Paid per Share (in dollars per share)	$ 3.03	$ 3.01	$ 2.55							$ 2.80
Cumulative Total of Number of Shares Purchased as Part of Publicly Announced Plan	62,200	61,900	61,600							61,500
Maximum Number of Shares That May Yet Be Purchased Under the Plan or Program	437,800	438,100	438,400							438,500
Promotional allowances
Cost of gratuitous F&B						592	575	1,173	1,146
Average cost of F&B sold (as a percent)						33.80%	36.00%	30.00%	36.30%
Retail value of F&B						$ 1,751	$ 1,597	$ 3,910	$ 3,157