| Line | 
           Label | 
           Object Class | 
           Period Type | 
           Balance | 
           Report Element Name | 
        
        
           | 1 | 
           Report to Comptroller | 
           Network | 
           *  | 
           *  | 
           http://xbrlsite.com/seattlemethod/occ/role/ReportToComptroller | 
        
        
           | 2 | 
           Report to Comptroller [Hypercube] | 
           Table | 
            | 
            | 
           occ:ReportToComptrollerHypercube | 
        
        
           | 3 | 
           Hypercube [Line Items] | 
           LineItems | 
            | 
            | 
           occ:HypercubeLineItems | 
        
        
           | 4 | 
           Resources [Roll Up] | 
           Abstract | 
            | 
            | 
           occ:ResourcesRollUp | 
        
        
           | 5 | 
           Loans, Including Overdraft | 
           Concept (Monetary) | 
           As Of | 
           Debit | 
           occ:LoansIncludingOverdraft | 
        
        
           | 6 | 
           U. S. Bonds and Premiums | 
           Concept (Monetary) | 
           As Of | 
           Debit | 
           occ:USBondsAndPremiums | 
        
        
           | 7 | 
           Real Estate, Furniture and Fixtures | 
           Concept (Monetary) | 
           As Of | 
           Debit | 
           occ:RealEstateFurnitureAndFixtures | 
        
        
           | 8 | 
           Redemption Fund with U. S. Treasurer | 
           Concept (Monetary) | 
           As Of | 
           Debit | 
           occ:RedemptionFundWithUSTreasurer | 
        
        
           | 9 | 
           Cash and Due from Banks | 
           Concept (Monetary) | 
           As Of | 
           Debit | 
           occ:CashAndDueFromBanks | 
        
        
           | 10 | 
           Resources | 
           Concept (Monetary) | 
           As Of | 
           Debit | 
           occ:Resources | 
        
        
           | 11 | 
           Liabilities [Roll Up] | 
           Abstract | 
            | 
            | 
           occ:LiabilitiesRollUp | 
        
        
           | 12 | 
           Capital | 
           Concept (Monetary) | 
           As Of | 
           Credit | 
           occ:Capital | 
        
        
           | 13 | 
           Surplus and Undivided Profits | 
           Concept (Monetary) | 
           As Of | 
           Credit | 
           occ:SurplusAndUndividedProfits | 
        
        
           | 14 | 
           Circulation | 
           Concept (Monetary) | 
           As Of | 
           Credit | 
           occ:Circulation | 
        
        
           | 15 | 
           Deposits | 
           Concept (Monetary) | 
           As Of | 
           Credit | 
           occ:Deposits | 
        
        
           | 16 | 
           Liabilities | 
           Concept (Monetary) | 
           As Of | 
           Credit | 
           occ:Liabilities |