XML 100 R83.htm IDEA: XBRL DOCUMENT
v3.24.1

ALLOWANCE FOR CREDIT LOSSES - LOANS - Loan modified as a TDR (Details) - Loans in non-accrual status - Subsequent modification of a TDR $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) loan
Commercial and industrial |
Schedule of TDRs |
Number of loans | loan | 1
Current Balance | $ | $ 452
Concession Granted | Subsequent modification of a TDR - Extension of maturity date with a below market interest rate
Commercial real estate (non-owner occupied) |
Schedule of TDRs |
Number of loans | loan | 1
Current Balance | $ | $ 1,583
Concession Granted | Extension of maturity date with an interest only period at below market interest rate

X
- Definition Trouble debt restructuring for non performing assets granted. + References No definition available. + Details
Name: | asrv_TroubleDebtRestructuringForNonPerformingAssetsGrantedAbstract
Namespace Prefix: | asrv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Troubled Debt Restructuring Concession Granted. + References No definition available. + Details
Name: | asrv_TroubledDebtRestructuringConcessionGranted
Namespace Prefix: | asrv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-42 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | asrv_TypeOfLoanAccrualStatusAxis=asrv_LoansInNonAccrualStatusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_StatementScenarioAxis=asrv_SubsequentModificationOfTdrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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