RIVIERA BLACK HAWK ACQUISITION (Details) (USD $)	3 Months Ended								12 Months Ended													1 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Riviera Black Hawk	Dec. 31, 2011 Riviera Black Hawk	Apr. 26, 2012 Riviera Black Hawk	Sep. 29, 2011 Riviera Black Hawk	Apr. 26, 2012 Riviera Black Hawk Customer list	Apr. 26, 2012 Riviera Black Hawk Trade name	Apr. 26, 2012 Riviera Black Hawk Land	Apr. 26, 2012 Riviera Black Hawk Site improvements	Apr. 26, 2012 Riviera Black Hawk Building improvements	Apr. 26, 2012 Riviera Black Hawk Furniture and equipment	Apr. 30, 2012 Riviera Black Hawk Second Amended and Restated Credit Agreement
RIVIERA BLACK HAWK ACQUISITION TRANSACTION
Acquisition deposit										$ 3,800,000			$ 3,800,000
Purchase Price															76,000,000
Net working capital available after payment of indebtedness														2,100,000
Amount borrowed under acquisition																						72,300,000
Amount of purchase price escrowed to secure Seller's indemnification obligations														2,280,000
Consideration
Cash consideration														75,885,000
Liabilities assumed by the Company														3,505,000
Working capital adjustment														604,000
Total consideration														79,994,000
Tangible Assets:
Current assets														6,241,000
Total tangible assets														35,908,000				8,700,000	30,000	15,200,000	5,737,000
Intangible Assets:
Goodwill												25,100,000		25,110,000
Total intangible assets														37,190,000		10,490,000	1,590,000
Deferred tax asset														6,896,000
Total assets														79,994,000
Acquisition cost									2,155,521	973,607		2,200,000	974,000
Net revenue and operating income included in the entity's consolidated income statement
Net revenues	43,648,567	47,861,711	44,216,594	34,630,092	34,012,130	36,174,386	37,159,873	33,285,816	170,356,964	140,632,205	142,030,027	29,429,000
Income from operations	2,868,688	6,866,561	3,395,631	2,852,278	1,293,569	151,445	5,668,782	2,656,439	15,983,158	9,770,235	14,033,050	6,350,000
Net income	1,339,643	4,137,080	1,792,758	1,641,367	567,293	11,279	3,558,136	1,539,146	8,910,848	5,675,854	8,236,261	3,952,000
Pro forma (unaudited) consolidated results of operations
Net revenues												183,043,000	180,185,000
Income from operations												17,516,000	15,919,000
Net income												$ 9,542,000	$ 8,499,000
Basic earnings per share (in dollars per share)												$ 0.59	$ 0.53
Diluted earnings per share (in dollars per share)												$ 0.59	$ 0.52