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Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph a -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 35 -Paragraph 49 -URI http://asc.fasb.org/extlink&oid=25442802&loc=d3e3084-111518 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6490209&loc=d3e48214-111002 false2Loans Held for Sale (in Dollars)3false 4misn_LoansHeldForSalePercentageOfTotalLoansmisn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalselabel1truetruefalse0.0120.012[1]falsefalsefalse2truetruefalse0.0060.006[1]falsefalsefalse3truetruefalse0.0190.019[1]falsefalsefalsenum:percentItemTypepureNo authoritative reference available.No definition available.false0% of Total Loans4false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4false USDtruefalse$c86_AsOf30Jun2013_CommercialAndIndustrialLoansMemberhttp://www.sec.gov/CIK0001129920instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseCommercial and Industrial Loans [Member]us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldimisn_CommercialAndIndustrialLoansMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberpureStandardhttp://www.xbrl.org/2003/instancepurexbrli0usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Commercial and Industrial Loans [Member]5true 3misn_Note4LoansDetailsLoansHeldforSaleLineItemsmisn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 4 - Loans (Details) - Loans Held for Sale [Line Items]6false 4us-gaap_LoansReceivableHeldForSaleNetus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse19140001914[1]USD$falsefalsefalse2truefalsefalse346000346[1]USD$falsefalsefalse3truefalsefalse571000571[1]USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of loans held for sale, including but not limited to, commercial and consumer loans. 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Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph a -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 35 -Paragraph 49 -URI http://asc.fasb.org/extlink&oid=25442802&loc=d3e3084-111518 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6490209&loc=d3e48214-111002 false2Loans Held for Sale (in Dollars)15false 4misn_LoansHeldForSalePercentageOfTotalLoansmisn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalselabel1truetruefalse0.0000.000falsefalsefalse2truetruefalse0.0000.000falsefalsefalse3truetruefalse0.0080.008falsefalsefalsenum:percentItemTypepureNo authoritative reference available.No definition available.false0% of Total Loans1Consists of all loans held at Mission Asset Management, Inc. and SBA-guaranteed loans held for sale at Mission Community BankfalseNote 4 - Loans (Details) - Loans Held for Sale (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.missioncommunitybank.com/role/LoansHeldforSaleTable315