Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) item	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) segment item	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting
Number of reporting segments | segment			2
Total revenues	$ 15,032	$ 13,369	$ 28,617	$ 25,602
Cost of revenues	(8,816)	(7,195)	(16,885)	(13,895)
Depreciation and amortization	(601)	(686)	(1,171)	(1,186)
Selling, general and administrative	(3,666)	(2,972)	(7,601)	(6,466)
Interest expense	(109)	(63)	(192)	(125)
Other income	803		803
Total costs and expenses	(12,389)	(10,916)	(25,046)	(21,672)
Income (loss) before income taxes	2,643	2,453	3,571	3,930
INCOME TAX EXPENSE	(458)	(845)	(792)	(1,316)
NET INCOME	2,185	1,608	2,779	2,614
Total Assets
Property and equipment, net	57,790		57,790		$ 41,524
Goodwill (allocated)	5,425		5,425		4,857
Other assets, excluding property and equipment and goodwill	17,329		17,329		19,723
TOTAL ASSETS	$ 80,544		$ 80,544		66,104
Germany
Segment Reporting
Number of hotels owned and operated | item	3		3
Austria
Segment Reporting
Number of hotels owned and operated | item	1		1
Corporate
Segment Reporting
Depreciation and amortization	$ (3)	(3)	$ (5)	(6)
Selling, general and administrative	(774)	(1,106)	(2,095)	(2,375)
Total costs and expenses	(777)	(1,109)	(2,100)	(2,381)
Income (loss) before income taxes	(777)	(1,109)	(2,100)	(2,381)
NET INCOME	(777)	(1,109)	(2,100)	(2,381)
Total Assets
Property and equipment, net	827		827		748
Other assets, excluding property and equipment and goodwill	950		950		885
TOTAL ASSETS	1,777		1,777		1,633
Casino | Operating Segments
Segment Reporting
Total revenues	11,420	12,087	22,628	23,276
Cost of revenues	(6,726)	(6,534)	(13,286)	(12,630)
Depreciation and amortization	(292)	(340)	(600)	(661)
Selling, general and administrative	(1,834)	(1,669)	(3,617)	(3,464)
Interest expense		(1)		(1)
Total costs and expenses	(8,852)	(8,544)	(17,503)	(16,756)
Income (loss) before income taxes	2,568	3,543	5,125	6,520
INCOME TAX EXPENSE	(458)	(845)	(792)	(1,316)
NET INCOME	2,110	2,698	4,333	5,204
Total Assets
Property and equipment, net	29,311		29,311		23,550
Goodwill (allocated)	5,284		5,284		4,730
Other assets, excluding property and equipment and goodwill	10,402		10,402		12,781
TOTAL ASSETS	44,997		44,997		41,061
Hotel | Operating Segments
Segment Reporting
Total revenues	3,612	1,282	5,989	2,326
Cost of revenues	(2,090)	(661)	(3,599)	(1,265)
Depreciation and amortization	(306)	(343)	(566)	(519)
Selling, general and administrative	(1,058)	(197)	(1,889)	(627)
Interest expense	(109)	(62)	(192)	(124)
Other income	803		803
Total costs and expenses	(2,760)	(1,263)	(5,443)	(2,535)
Income (loss) before income taxes	852	19	546	(209)
NET INCOME	852	$ 19	546	$ (209)
Total Assets
Property and equipment, net	27,652		27,652		17,226
Goodwill (allocated)	141		141		127
Other assets, excluding property and equipment and goodwill	5,977		5,977		6,057
TOTAL ASSETS	$ 33,770		$ 33,770		$ 23,410