RIVIERA BLACK HAWK ACQUISITION TRANSACTION (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended									1 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Riviera Black Hawk	Sep. 30, 2012 Riviera Black Hawk	Sep. 30, 2011 Riviera Black Hawk	Apr. 26, 2012 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
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 Monarch								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								26,576,000
Total intangible assets								38,656,000	10,490,000	1,590,000
Deferred tax asset								5,430,000
Total assets								79,994,000
Acquisition related Cost	454,701	437,400	2,155,522	437,400	455,000	2,200,000
Net revenue and operating income included in the entity's consolidated income statement
Net revenues	47,861,711	36,174,386	126,708,397	106,620,075		18,956,000
Income from operations	6,866,561	151,445	13,114,470	8,476,666		4,344,000
Net income	4,137,081	11,279	7,571,205	5,108,561		2,693,000
Basic earnings per common share (in dollars per share)	$ 0.26	$ 0.00	$ 0.47	$ 0.32		$ 0.17
Diluted earnings per common share (in dollars per share)	$ 0.25	$ 0.00	$ 0.47	$ 0.31		$ 0.17
Pro forma consolidated results of operations
Net revenues						139,394,000	136,687,000
Income from operations						14,647,000	13,816,000
Net income						$ 9,241,000	$ 10,536,000
Basic earnings per share (in dollars per share)						$ 0.57	$ 0.66
Diluted earnings per share (in dollars per share)						$ 0.57	$ 0.64