XML 89 R73.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

ALLOWANCE FOR LOAN LOSSES - Present impaired loans by portfolio segment (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | $ 824 | $ 11
Related Allowance | 8 | 11
Unpaid Principal Balance | 846 | 33
Commercial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 816 |
Unpaid Principal Balance | 816 |
Commercial loans secured by non-owner occupied real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 8 | 11
Unpaid Principal Balance | 30 | 33
Impaired Loans with Specific Allowance [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 824 | 11
Related Allowance | 92 | 11
Impaired Loans with Specific Allowance [Member] | Commercial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 816 |
Related Allowance | 84 |
Impaired Loans with Specific Allowance [Member] | Commercial loans secured by non-owner occupied real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment | 8 | 11
Related Allowance | $ 8 | $ 11

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=118936363&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=118936363&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=118936363&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: | 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: |

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