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Principles of Consolidation | 3 Months Ended
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Mar. 31, 2019
PrinciplesOfConsolidationAbstract [Abstract] |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] | 1. Principles of Consolidation The accompanying consolidated financial statements include the accounts of AmeriServ Financial, Inc. (the Company) and its wholly-owned subsidiaries, AmeriServ Financial Bank (the Bank), AmeriServ Trust and Financial Services Company (the Trust Company), and AmeriServ Life Insurance Company (AmeriServ Life). The Bank is a Pennsylvania state-chartered full service bank with 15 locations in Pennsylvania and 1 location in Maryland. The Trust Company offers a complete range of trust and financial services and administers assets valued at $2.2 billion that are not reported on the Company’s Consolidated Balance Sheets at March 31, 2019. AmeriServ Life is a captive insurance company that engages in underwriting as a reinsurer of credit life and disability insurance. In addition, the Parent Company is an administrative group that provides support in such areas as audit, finance, investments, loan review, general services, and marketing. Significant intercompany accounts and transactions have been eliminated in preparing the consolidated financial statements.

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- Definition Principles of consolidation. + References No definition available. + Details
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- Definition The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -URI http://asc.fasb.org/topic&trid=2122149 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -URI http://asc.fasb.org/topic&trid=2197479 + Details
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