2.4.0.81110 - Disclosure - Subsequent Eventtruefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0000946090duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_SubsequentEventsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Subsequent Event2false 2us-gaap_SubsequentEventsTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> (11)                          Subsequent Event   On July 1, 2013, we became self-insured with respect to employee-related health insurance claims.  We use commercial insurance above our self-insured retentions to reduce our risk of catastrophic loss.  Our reserves for self-insured losses are estimated based on employee claim history.   </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.No definition available.false0Subsequent EventfalseSubsequent EventUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.1stmarinerbank.com/role/DisclosureSubsequentEvent12