v3.19.1
DOCUMENT AND ENTITY INFORMATION - USD ($)
12 Months Ended
Dec. 31, 2018
Mar. 20, 2019
Jun. 30, 2018
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Entity Registrant Name Bimini Capital Management, Inc.    
Entity Central Index Key 0001275477    
Entity Current Reporting Status Yes    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Ex Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 20,500,000
Trading Symbol BMNM    
Entity Well Known Seasoned Issuer No    
Entity Voluntary Filers No    
Class A Common Stock [Member]      
Entity Common Stock Shares Outstanding   12,708,555  
Class B Common Stock [Member]      
Entity Common Stock Shares Outstanding   31,938  
Class C Common Stock [Member]      
Entity Common Stock Shares Outstanding   31,938