Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Mar. 11, 2022
Jun. 30, 2021
Document and Entity Information [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
Document Transition Report false    
Entity File Number 001-32583    
Entity Registrant Name FULL HOUSE RESORTS INC    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 13-3391527    
Entity Address, Address Line One One Summerlin, 1980 Festival Plaza Drive, Suite 680    
Entity Address, City or Town Las Vegas    
Entity Address, State or Province NV    
Entity Address, Postal Zip Code 89135    
City Area Code 702    
Local Phone Number 221-7800    
Title of 12(b) Security Common Stock, $0.0001 per Share    
Trading Symbol FLL    
Security Exchange Name NASDAQ    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Voluntary Filers No    
Entity Well-Known Seasoned Issuer No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Accelerated Filer    
Entity Emerging Growth Company false    
Entity Small Business true    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   34,242,581  
Entity Public Float     $ 323.8
Amendment Flag false    
Entity Central Index Key 0000891482    
Document Fiscal Year End 2021    
Document Fiscal Period Focus FY    
Auditor Name Deloitte & Touche LLP    
Auditor Firm ID 34    
Auditor Location Las Vegas, Nevada