Accretion Amortization Of Discounts And Premiums Investments Net amortization (accretion) of investment securities Accrued Expenses and Other Liabilities Accrued Expenses And Other Liabilities Accrued expenses & other payables Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated other comprehensive income Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Amendment Flag Amendment Flag Amortization Of Deferred Loan Origination Fees Net Amortization of deferred loan (fees) costs Assets Total assets Assets [Abstract] ASSETS: Available For Sale Securities Investment securities available for sale Bank Owned Life Insurance Income Income from bank-owned life insurance Cash And Cash Equivalents At Carrying Value Cash and Cash Equivalents at End of Period Cash and Cash Equivalents at Beginning of Period Cash And Cash Equivalents Period Increase Decrease Net increase in cash and cash equivalents Cash And Due From Banks Cash and due from banks Cash Cash Equivalents And Federal Funds Sold Total cash and cash equivalents Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] Supplemental Disclosures of Noncash Investing and Financing Activities Common Stock [Member] Common Stock Common Stock No Par Value Common stock, no par value Common Stock Shares Authorized Common stock, authorized Common Stock Shares Issued Common stock, issued Common Stock Shares Outstanding Common stock, outstanding Common Stock Value Common stock, authorized 10,000,000 shares with no par value, issued and outstanding 829,402 shares and 749,540 shares at March 31, 2012 and December 31, 2011, respectively. Comprehensive Income Net Of Tax Total comprehensive income Current Fiscal Year End Date Current Fiscal Year End Date Deferred Income Tax Expense Benefit Deferred income tax (benefit) Deposits Total deposits Deposits [Abstract] Deposits Deposits Savings Deposits Savings Depreciation And Amortization Depreciation and amortization Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Stock Based Compensation Document - Document and Entity Information [Abstract] Document Documentand Entity Information [Abstract] Document - Document and Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Information [Line Items] Document Information [Line Items] Document Period End Date Document Period End Date Document Type Document Type Due To Related Parties Current And Noncurrent Subordinated notes payable to subsidiary trust Earnings Per Share Basic Basic earnings per share Earnings Per Share Diluted Diluted earnings per share Earnings Per Share [Text Block] Earnings per share (EPS) Entities [Table] Entities [Table] Entity Central Index Key Entity Central Index Key Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity [Domain] Entity [Domain] Entity Filer Category Entity Filer Category Entity Registrant Name Entity Registrant Name Equity Component [Domain] Equity Component [Domain] Fair Value Disclosures [Text Block] Fair Value Measurement Federal Funds Sold Federal funds sold Fees And Commissions Depositor Accounts Service charges on deposit accounts Foreclosed Assets Foreclosed assets Gain Loss On Sale Of Property Plant Equipment Loss on disposition of equipment Gains Losses On Sales Of Assets Gain on sale of foreclosed assets Gains Losses On Sales Of Other Real Estate Gain on sale of foreclosed assets General Insurance Expense Insurance Held To Maturity Securities Investment securities held to maturity (fair value approximates $9,205,000 at March 31, 2012 and $9,861,000 at December 31, 2011) Held To Maturity Securities Fair Value Investment securities held to maturity, fair value Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments Income before income tax expense Income Statement [Abstract] Income Statement [Abstract] Income Taxes Paid Income taxes paid Income Tax Expense Benefit Income tax expense Increase Decrease In Accrued Interest Receivable Net Accrued interest receivable Increase Decrease In Deposits Net change in deposits Increase Decrease In Interest Payable Net Accrued interest payable Increase Decrease In Operating Capital [Abstract] Net changes in: Increase Decrease In Other Operating Assets Other assets Increase Decrease In Other Operating Liabilities Other liabilities Information Technology And Data Processing Data and item processing Interest And Dividend Income Operating Total interest income Interest And Dividend Income Operating [Abstract] Interest income Interest And Dividend Income Securities Investment securities and due from banks Interest And Fee Income Loans And Leases Interest and fee income on loans Interest Bearing Deposit Liabilities [Abstract] Interest bearing Interest Bearing Deposits In Banks Interest-bearing deposits in other banks Interest Expense Total interest expense Interest Expense [Abstract] Interest expense Interest Expense Deposits Deposits Interest expense incurred during the reporting period on other borrowings. Interest Expense Other Borrowings Other borrowings Interest Income Expense After Provision For Loan Loss Net interest income after provision for loan losses Interest Income Expense Net Net interest income Interest Income Federal Funds Sold Interest on Federal funds sold Interest Paid Interest paid Interest Payable Current And Noncurrent Accrued interest payable Interest Receivable Accrued interest receivable Investment Income Dividend Dividend income from restricted stock Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] Investment Securities Labor And Related Expense Salaries and employee benefits Legal Entity [Axis] Legal Entity [Axis] Liabilities Total liabilities Liabilities [Abstract] LIABILITIES: Liabilities And Stockholders Equity Total liabilities & shareholders' equity Loans And Leases Receivable Allowance Allowance for loan losses Loans And Leases Receivable Commercial Commercial Loans And Leases Receivable Consumer Installment Durable Goods Installment Loans And Leases Receivable Deferred Income Unearned fees and discounts Loans And Leases Receivable Gross Carrying Amount Gross loans Loans And Leases Receivable Gross Carrying Amount [Abstract] Loans Loans And Leases Receivable Net Of Deferred Income Loans net of unearned fees and discount Loans And Leases Receivable Net Reported Amount Net loans Loans Notes Trade And Other Receivables Disclosure [Text Block] Loans and Allowance for Loan Losses Loans Receivable Commercial Real Estate Real estate Marketable Securities Total investments Marketing And Advertising Expense Advertising and marketing Nature Of Operations The Business of Chino Commercial Bancorp Net Cash Provided By Used In Financing Activities Net cash provided by financing activities Net Cash Provided By Used In Financing Activities [Abstract] Cash Flows from Financing Activities Net Cash Provided By Used In Investing Activities Net cash provided by investing activities Net Cash Provided By Used In Investing Activities [Abstract] Cash Flows from Investing Activities Net Cash Provided By Used In Operating Activities Net cash provided by operating activities Net Cash Provided By Used In Operating Activities [Abstract] Cash Flows from Operating Activities Net Income Loss Net income Net income Entire disclosure related to the changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. New Accounting Pronouncements And Changes In Accounting Principles Disclosure [Text Block] Recent Accounting Pronouncements Noninterest Bearing Deposit Liabilities Non-interest bearing Noninterest Expense Total non-interest expenses Noninterest Expense [Abstract] Non-interest expenses Noninterest Expense Directors Fees Directors' fees and expenses Noninterest Income Total non-interest income Noninterest Income [Abstract] Non-interest income Noninterest Income Other Operating Income Other miscellaneous income Notes Payable Disclosure [Text Block] Notes Payable Disclosure [Text Block] Subordinated Notes Payable to Subsidiary Trust Notes to Financial Statements [Abstract] Notes To Financial Statements [Abstract] Notes to Financial Statements [Abstract] Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense. Occupancy And Equipment Expense Occupancy and equipment Off Balance Sheet Commitments And Guarantees [Text Block] Off Balance Sheet Commitments And Guarantees [Text Block] Off-Balance-Sheet Commitments Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Basis of Presentation and Consolidation Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Other comprehensive income (loss), net of tax effects Net unrealized holding gains (losses) on securities available for sale during the period (tax effects of ($2,482) and $5,215) Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax Other comprehensive income (loss), tax effects Net unrealized holding gains (losses) on securities available for sale Other Noninterest Expense Other expenses Payment for Proceeds from Available For Sale Securities [Abstract] Payment For Proceeds From Available For Sale Securities [Abstract] Activity in investment securities available for sale Payments For Proceeds From Held-To-Maturity Securities Payments For Proceeds From Held To Maturity Securities Repayments and calls Payments for Proceeds from Held to Maturity Securities [Abstract] Payments For Proceeds From Held To Maturity Securities [Abstract] Activity in investment securities held to maturity Payments For Proceeds From Investments Redemption of stock investments, restricted Payments To Acquire Property Plant And Equipment Purchase of premises and equipment Prepaid Expense Current And Noncurrent Prepaid & other assets Proceeds From Issuance Of Common Stock Proceeds from stock offering Proceeds From Loan And Lease Originations And Principal Collections Loan originations and principal collections, net Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities Repayments and calls Proceeds From Payments For In Interest Bearing Deposits In Banks Net change in interest-bearing deposits in other banks Proceeds From Sale Of Foreclosed Assets Proceeds from sale of foreclosed assets Professional Fees Legal and professional fees Property Plant And Equipment Net Fixed assets, net Provision For Loan And Lease Losses Provision for loan losses Regulatory assessments. Regulatory Assessments Regulatory assessments Regulatory Capital Requirements Under Banking Regulations [Text Block] Regulatory Agreements Restricted Investments Restricted stock Retained Earnings Accumulated Deficit Retained earnings Retained Earnings [Member] Retained Earnings Savings, Now And Money Market Savings Now And Money Market NOW and money market Shares Outstanding Ending Balance (in shares) Beginning Balance (in shares) Significant Accounting Policies [Text Block] Critical Accounting Policies Statement Equity Components [Axis] Statement, Equity Components [Axis] Statement [Line Items] Statement [Line Items] Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement Of Income And Comprehensive Income [Abstract] Statement of Income and Comprehensive Income [Abstract] Statement Of Stockholders Equity [Abstract] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Stockholders Equity Ending Balance Beginning Balance Total shareholders' equity Stockholders Equity [Abstract] SHAREHOLDERS' EQUITY Stock Issued During Period Shares New Issues Net proceeds from secondary stock offering (in shares) Stock Issued During Period Shares Other Change in unrealized gain on securities available for sale, net of tax (in shares) Stock Issued During Period Shares Stock Options Exercised Exercise of stock options, including tax benefit (in shares) Stock Issued During Period Value New Issues Net proceeds from secondary stock offering Stock Issued During Period Value Other Change in unrealized gain on securities available for sale, net of tax Stock Issued During Period Value Stock Options Exercised Exercise of stock options, including tax benefit Supplemental Cash Flow Information [Abstract] Supplemental Information Time Deposits 100000 Or More Time deposits of $100,000 or greater Time Deposits Less Than 100000 Time deposits less than $100,000 Trading Symbol Trading Symbol Transfer Of Other Real Estate Loans to facilitate the sale of foreclosed assets