Summary of Selected Significant Accounting Policies. (Details 2) In Thousands, except Share data, unless otherwise specified	0 Months Ended												3 Months Ended		9 Months Ended					9 Months Ended			9 Months Ended
	Apr. 09, 2013 USD ($)	Apr. 04, 2013 USD ($)	Mar. 27, 2013 USD ($)	Mar. 25, 2013 USD ($)	Mar. 08, 2013 USD ($)	Jan. 25, 2013 USD ($)	Jan. 18, 2013 USD ($)	Jan. 16, 2013 USD ($)	Dec. 20, 2012 USD ($)	Nov. 19, 2012 USD ($)	Nov. 12, 2012	Jan. 01, 2002	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Dec. 31, 2012	Jan. 01, 2003 USD ($)	Jun. 30, 1998 CZK	Sep. 30, 2013 German reporting unit USD ($)	Jan. 01, 2003 German reporting unit USD ($)	Jun. 30, 1998 German reporting unit CZK	Sep. 30, 2013 Austrian reporting unit USD ($)	Jan. 01, 2003 Austrian reporting unit USD ($)	Jun. 30, 1998 Austrian reporting unit CZK
Impact of foreign currency translation on goodwill
Applicable Foreign Exchange Rate ("FX")													19.0054		19.0054				33.8830
Residual balance													$ 6,381		$ 6,381			$ 3,579	121,267	$ 5,423	$ 3,042	103,072	$ 958	$ 537	18,195
Net increase to Goodwill															2,802					2,381			421
Period over which goodwill was amortized												15 years
Stock-based Compensation
Award expenses															0	104
Stock Repurchase Program
Shares authorized for repurchase											500,000
Period over which shares is authorized to repurchase											12 months
Common stock, shares outstanding													8,825,335		8,825,335		8,836,735
Total Number of Shares Purchased	250	250	200	200	100	4,500	900	5,000	30,000	4,900			0
Average Price Paid per Share (in dollars per share)	$ 2.40	$ 2.65	$ 2.65	$ 2.50	$ 2.54	$ 2.50	$ 2.50	$ 2.50	$ 2.65	$ 2.50
Cumulative Total of Number of Shares Purchased as Part of Publicly Announced Plan	46,300	46,050	45,800	45,600	45,400	45,300	40,800	39,900	34,900	4,900
Maximum Number (or Approximate Dollar Value) of Shares That May Yet Be Purchased Under the Plan or Program	453,700	453,950	454,200	454,400	454,600	454,700	459,200	460,100	465,100	495,100
Promotional allowances
Cost of gratuitous food and beverages													598	545	1,744	1,668
Average cost of food and beverages sold (as a percent)													34.00%	34.20%	35.40%	34.60%
Retail value of food and beverages													1,759	1,594	4,927	4,821
Retail value of hotel accommodations													16	13	45	29
Total promotional allowances													$ 1,775	$ 1,607	$ 4,972	$ 4,850