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Pension Benefits - Additional information (Details) $ in Millions | Mar. 31, 2022 USD ($)
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Defined Benefit Plan Disclosure [Line Items] |
Minimum number of annual hours | 1,000
Maximum percent of plan assets comprised of AmeriServ Financial, Inc. common stock | 10.00%
Defined Benefit Pension Items | Other assets. |
Defined Benefit Plan Disclosure [Line Items] |
Assets for pension benefits | $ 22.4

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