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Document and Entity Information
 6 Months Ended
Jun. 30, 2014
Aug. 14, 2014
Document And Entity Information    
Entity Registrant Name OptimumBank Holdings, Inc.  
Entity Central Index Key 0001288855  
Document Type 10-Q  
Document Period End Date Jun. 30, 2014  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity a Well-known Seasoned Issuer No  
Entity a Voluntary Filer No  
Entity's Reporting Status Current Yes  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   9,062,537
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2014