XML 67 R55.htm IDEA: XBRL DOCUMENT
v3.22.1

Allowance for Loan Losses - Present impaired loans by portfolio segment (Details) - USD ($) | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | $ 2,132,000 | $ 2,170,000
Related Allowance | 5,000 |
Unpaid Principal Balance | 2,282,000 | 2,287,000
Impaired Loans with Specific Allowance |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 2,132,000 | 2,170,000
Related Allowance | 627,000 | 633,000
Impaired Loans With No Specific Allowance |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 0 | 0
Commercial | Commercial. |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 2,127,000 | 2,165,000
Unpaid Principal Balance | 2,255,000 | 2,260,000
Commercial | Commercial loans secured by Non-Owner Occupied real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 5,000 | 5,000
Unpaid Principal Balance | 27,000 | 27,000
Commercial | Impaired Loans with Specific Allowance | Commercial. |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 2,127,000 | 2,165,000
Related Allowance | 622,000 | 628,000
Commercial | Impaired Loans with Specific Allowance | Commercial loans secured by Non-Owner Occupied real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 5,000 | 5,000
Related Allowance | 5,000 | 5,000
Commercial | Impaired Loans With No Specific Allowance | Commercial. |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 0 | 0
Commercial | Impaired Loans With No Specific Allowance | Commercial loans secured by Non-Owner Occupied real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | $ 0 | $ 0

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | asrv_ImpairedLoansAxis=asrv_ImpairedLoansWithSpecificAllowanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | asrv_ImpairedLoansAxis=asrv_ImpairedLoansWithNoSpecificAllowanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=asrv_CommercialLoansSecuredByNonownerOccupiedRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |