Document and Entity Information (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Mar. 05, 2013	Jun. 30, 2012
Document and Entity Information
Entity Registrant Name	MONARCH CASINO & RESORT INC
Entity Central Index Key	0000907242
Document Type	10-K
Document Period End Date	Dec. 31, 2012
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 147.5
Entity Common Stock, Shares Outstanding		16,147,324
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY