XML 57 R44.htm IDEA: XBRL DOCUMENT
v3.25.2

Investment Securities - Cost basis and fair values of investment securities (Details) - USD ($) | Jun. 30, 2025 | Mar. 31, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | --- | --- | ---
Information concerning investments with unrealized gains and losses |  |  |  |  |  |
Investment securities available for sale, Cost Basis | $ 183,813,000 |  | $ 172,857,000 |  |  |
Investment securities available for sale, Gross Unrealized Gains | 636,000 |  | 186,000 |  |  |
Investment securities available for sale, Gross Unrealized Losses | (13,684,000) |  | (17,063,000) |  |  |
Investment securities available for sale, Allowance for credit losses | (1,000,000) | $ (1,000,000) | (360,000) | $ (360,000) | $ (116,000) | $ (926,000)
Available for sale, Fair Value | 169,765,000 |  | 155,620,000 |  |  |
Investment securities - HTM, Carrying Value | 67,555,000 |  | 63,837,000 |  |  |
Investment securities held to maturity, Gross Unrealized Gains | 66,000 |  | 28,000 |  |  |
Investment securities held to maturity, Gross Unrealized Losses | (4,341,000) |  | (5,394,000) |  |  |
Investment securities - HTM, Fair Value | 63,280,000 |  | 58,471,000 |  |  |
Investment securities held to maturity, Allowance for credit losses | (85,000) | (96,000) | (89,000) | (100,000) | (90,000) | (37,000)
U.S. Agency |  |  |  |  |  |
Information concerning investments with unrealized gains and losses |  |  |  |  |  |
Investment securities available for sale, Cost Basis | 5,256,000 |  | 5,345,000 |  |  |
Investment securities available for sale, Gross Unrealized Losses | (484,000) |  | (679,000) |  |  |
Available for sale, Fair Value | 4,772,000 |  | 4,666,000 |  |  |
Investment securities - HTM, Carrying Value | 2,500,000 |  | 2,500,000 |  |  |
Investment securities held to maturity, Gross Unrealized Losses | (281,000) |  | (365,000) |  |  |
Investment securities - HTM, Fair Value | 2,219,000 |  | 2,135,000 |  |  |
Investment securities held to maturity, Allowance for credit losses | 0 |  |  |  |  |
U.S. Agency mortgage-backed securities |  |  |  |  |  |
Information concerning investments with unrealized gains and losses |  |  |  |  |  |
Investment securities available for sale, Cost Basis | 113,795,000 |  | 104,227,000 |  |  |
Investment securities available for sale, Gross Unrealized Gains | 422,000 |  | 90,000 |  |  |
Investment securities available for sale, Gross Unrealized Losses | (10,687,000) |  | (12,783,000) |  |  |
Available for sale, Fair Value | 103,530,000 |  | 91,534,000 |  |  |
Investment securities - HTM, Carrying Value | 31,552,000 |  | 26,966,000 |  |  |
Investment securities held to maturity, Gross Unrealized Gains | 64,000 |  | 28,000 |  |  |
Investment securities held to maturity, Gross Unrealized Losses | (2,060,000) |  | (2,403,000) |  |  |
Investment securities - HTM, Fair Value | 29,556,000 |  | 24,591,000 |  |  |
Investment securities held to maturity, Allowance for credit losses | 0 |  |  |  |  |
Municipal |  |  |  |  |  |
Information concerning investments with unrealized gains and losses |  |  |  |  |  |
Investment securities available for sale, Cost Basis | 11,447,000 |  | 9,031,000 |  |  |
Investment securities available for sale, Gross Unrealized Gains | 44,000 |  | 2,000 |  |  |
Investment securities available for sale, Gross Unrealized Losses | (475,000) |  | (670,000) |  |  |
Available for sale, Fair Value | 11,016,000 |  | 8,363,000 |  |  |
Investment securities - HTM, Carrying Value | 30,088,000 |  | 30,959,000 |  |  |
Investment securities held to maturity, Gross Unrealized Gains | 2,000 |  |  |  |  |
Investment securities held to maturity, Gross Unrealized Losses | (1,819,000) |  | (2,553,000) |  |  |
Investment securities - HTM, Fair Value | 28,271,000 |  | 28,406,000 |  |  |
Investment securities held to maturity, Allowance for credit losses | (2,000) | (1,000) | (2,000) | (2,000) | (2,000) | (2,000)
Corporate bonds |  |  |  |  |  |
Information concerning investments with unrealized gains and losses |  |  |  |  |  |
Investment securities available for sale, Cost Basis | 53,315,000 |  | 54,254,000 |  |  |
Investment securities available for sale, Gross Unrealized Gains | 170,000 |  | 94,000 |  |  |
Investment securities available for sale, Gross Unrealized Losses | (2,038,000) |  | (2,931,000) |  |  |
Investment securities available for sale, Allowance for credit losses | (1,000,000) | (1,000,000) | (360,000) | (360,000) | (116,000) | (926,000)
Available for sale, Fair Value | 50,447,000 |  | 51,057,000 |  |  |
Corporate bonds and other securities |  |  |  |  |  |
Information concerning investments with unrealized gains and losses |  |  |  |  |  |
Investment securities - HTM, Carrying Value | 3,415,000 |  | 3,412,000 |  |  |
Investment securities held to maturity, Gross Unrealized Losses | (181,000) |  | (73,000) |  |  |
Investment securities - HTM, Fair Value | 3,234,000 |  | 3,339,000 |  |  |
Investment securities held to maturity, Allowance for credit losses | $ (83,000) | $ (95,000) | $ (87,000) | $ (98,000) | $ (88,000) | $ (35,000)

X
- Definition Available for sale of securities and held to maturity securities abstract. + References No definition available. + Details
Name: | asrv_AvailableForSaleOfSecuritiesAndHeldToMaturitySecuritiesAbstract
Namespace Prefix: | asrv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 + Details
Name: | us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5A + Details
Name: | us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5A + Details
Name: | us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 6: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5A Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
Name: | us-gaap_HeldToMaturitySecuritiesFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_MunicipalBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateBondSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_OtherDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |