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General (Details Narrative) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Additional capital needed to comply with required total risk-based capital requirement $ 5,500ophc_AdditionalCapitalRequired  
Junior subordinated debenture 5,155us-gaap_JuniorSubordinatedNotes 5,155us-gaap_JuniorSubordinatedNotes
Accrued and unpaid interest payable 832us-gaap_InterestPayableCurrentAndNoncurrent  
OptimumBank Holdings Capital Trust I    
Preferred Securities issued 5,000ophc_TrustPreferredSecuritiesSubject
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ophc_OptimumBankHoldingsCapitalTrustIMember
 
Junior subordinated debenture $ 5,155us-gaap_JuniorSubordinatedNotes
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ophc_OptimumBankHoldingsCapitalTrustIMember