Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Sep. 30, 2014
Summary of Significant Accounting Policies [Abstract]
Basis of Financial Presentation	Basis of Financial Presentation The accompanying unaudited consolidated financial statements include the accounts of Royal Bancshares of Pennsylvania, Inc. (“Royal Bancshares” or the “Company”) and its wholly-owned subsidiaries, Royal Investments of Delaware, Inc., including Royal Investments of Delaware, Inc.’s wholly owned subsidiary, Royal Preferred, LLC, and Royal Bank America (“Royal Bank”), including Royal Bank’s subsidiaries, Royal Real Estate of Pennsylvania, Inc., Royal Investments America, LLC, RBA Property LLC, Narberth Property Acquisition LLC, Rio Marina LLC, and Royal Tax Lien Services, LLC (“RTL”). Royal Bank also has an 80% and 60% ownership interest in Crusader Servicing Corporation (“CSC”) and Royal Bank America Leasing, LP, respectively. At September 30, 2013, Royal Bank’s ownership interest in CSC and RTL was 60%. Effective December 31, 2013, Royal Bank acquired the ownership interest of the former President of CSC and RTL. The two Delaware trusts, Royal Bancshares Capital Trust I and Royal Bancshares Capital Trust II are not consolidated per requirements under Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810, “Consolidation” (“ASC Topic 810”). These consolidated financial statements reflect the historical information of the Company. All significant intercompany transactions and balances have been eliminated. The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information. Applications of the principles in the Company’s preparation of the consolidated financial statements in conformity with U.S. GAAP require management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and the accompanying notes. These estimates and assumptions are based on information available as of the date of the consolidated financial statements; therefore, actual results could differ from those estimates. The interim financial information included herein is unaudited; however, such information reflects all adjustments (consisting solely of normal recurring adjustments) that are, in the opinion of management, necessary to present a fair statement of the results for the interim periods. These interim consolidated financial statements should be read in conjunction with the consolidated financial statements and footnotes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2013. The results of operations for the three and nine month periods ended September 30, 2014 are not necessarily indicative of the results to be expected for the full year. Reclassifications Certain items in the 2013 consolidated financial statements and accompanying notes have been reclassified to conform to the current year’s presentation format. There was no effect on net income or net loss for the periods presented herein as a result of the reclassification.
Accounting Policies Recently Adopted and Pending Accounting Pronouncements	Reclassifications Certain items in the 2013 consolidated financial statements and accompanying notes have been reclassified to conform to the current year’s presentation format. There was no effect on net income or net loss for the periods presented herein as a result of the reclassification. Accounting Policies Recently Adopted and Pending Accounting Pronouncements In January 2014, FASB issued ASU No. 2014-04, Receivables (Topic 310): Troubled Debt Restructurings by Creditors (Subtopic 310-40) Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure (“ASU 2014-04”). ASC Topic 310 includes guidance that states that a creditor should reclassify a collateralized mortgage loan such that the loan should be derecognized and the collateral asset recognized when it determines that there has been in substance a repossession or foreclosure by the creditor, that is, the creditor receives physical possession of the debtor’s assets regardless of whether formal foreclosure proceedings take place. However, the terms in substance a repossession or foreclosure and physical possession are not defined in the accounting literature and there is diversity about when a creditor should derecognize the loan receivable and recognize the real estate property. That diversity has been highlighted by recent extended foreclosure timelines and processes related to residential real estate properties. The objectives in ASU 2014-04 are intended to reduce diversity in practice by clarifying when an in substance repossession or foreclosure occurs, that is, when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan should be derecognized and the real estate property recognized. Holding foreclosed real estate property presents different operational and economic risk to creditors compared with holding an impaired loan. Therefore, consistency in the timing of loan derecognition and presentation of foreclosed real estate properties is of qualitative significance to users of the creditor’s financial statements. Additionally, the disclosure of the amount of foreclosed residential real estate properties and of the recorded investment in consumer mortgage loans secured by residential real estate properties that are in the process of foreclosure is expected to provide decision-useful information to many users of the creditor’s financial statements. The amendments in ASU 2014-04 are effective for public companies for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. An entity can elect to adopt the amendments in ASU 2014-04 using either a modified retrospective transition method or a prospective transition method. Early adoption is permitted. The adoption of ASU 2014-04 is not expected to have a significant impact on the Company’s consolidated financial statements. In April 2014, FASB issued ASU No. 2014-08 Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (“ASU 2014-08”). The amendments in ASU 2014-08 change the criteria for reporting discontinued operations for all public and nonpublic entities. Currently, a component of an entity that is a reportable segment, an operating segment, a reporting unit, a subsidiary, or an asset group is eligible for discontinued operations presentation. Once the amendments of ASU 2014-08 take effect, only those disposals of components of an entity that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results will be reported as discontinued operations in the financial statements. The amendments also require new disclosures about discontinued operations and disposals of components of an entity that do not qualify for discontinued operations reporting. The amendments in ASU 2014-08 are effective for public companies for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. Early adoption is permitted but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The adoption of ASU 2014-08 is not expected to have a significant impact on the Company’s consolidated financial statements. In June 2014, the FASB issued ASU No. 2014-12, Compensation – Stock Compensation (Topic 718) - Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period (“ASU 2014-12”). The amendments in ASU 2014-12 require that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. A reporting entity should apply existing guidance in Topic 718, Compensation – Stock Compensation, as it relates to awards with performance conditions that affect vesting to account for such awards. The performance target should not be reflected in estimating the grant-date fair value of the award. Compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the period(s) for which the requisite service has already been rendered. If the performance target becomes probable of being achieved before the end of the requisite service period, the remaining unrecognized compensation cost should be recognized prospectively over the remaining requisite service period. The total amount of compensation cost recognized during and after the requisite service period should reflect the number of awards that are expected to vest and should be adjusted to reflect those awards that ultimately vest. The requisite service period ends when the employee can cease rendering service and still be eligible to vest in the award if the performance target is achieved. The amendments in ASU 2014-12 are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2015. Early adoption is permitted. Entities may apply the amendments in this ASU either: (a) prospectively to all awards granted or modified after the effective date; or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. The adoption of ASU 2014-12 is not expected to have a significant impact on the Company’s consolidated financial statements. In June 2014, the FASB issued ASU 2014-11, Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures (“ASU 2014-11”), which changes the accounting for repurchase-to-maturity transactions and repurchase financing arrangements. The new guidance aligns the accounting for repurchase-to-maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements. Going forward, these transactions would all be accounted for as secured borrowings. It also requires additional disclosures about repurchase agreements and other similar transactions. The amendments in ASU 2014-11 and disclosure for certain transactions accounted for as a sale are effective for the first interim or annual period beginning after December 15, 2014. The disclosure for transactions accounted for as secured borrowings is required to be presented for annual periods beginning after December 15, 2014, and interim periods beginning after March 15, 2015. Earlier application is prohibited. The adoption of ASU 2014-11 is not expected to have a material impact on the Company’s financial condition and results of operations.