XML 59 R47.htm IDEA: XBRL DOCUMENT
v3.22.1

Investment Securities - Information concerning investments with unrealized losses (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | $ 121,406 | $ 75,231
Less than 12 months, Unrealized Losses | (5,916) | (1,273)
12 months or longer, Fair Value | 20,713 | 9,130
12 months and longer, Unrealized Losses | (2,326) | (375)
Total, Fair Value | 142,119 | 84,361
Total, Unrealized Losses | (8,242) | (1,648)
U.S. Agency |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 10,550 | 7,419
Less than 12 months, Unrealized Losses | (624) | (81)
Total, Fair Value | 10,550 | 7,419
Total, Unrealized Losses | (624) | (81)
U.S. Agency mortgage-backed securities |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 56,533 | 45,422
Less than 12 months, Unrealized Losses | (3,356) | (972)
12 months or longer, Fair Value | 17,323 | 6,691
12 months and longer, Unrealized Losses | (2,171) | (314)
Total, Fair Value | 73,856 | 52,113
Total, Unrealized Losses | (5,527) | (1,286)
Municipal |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 26,893 | 7,832
Less than 12 months, Unrealized Losses | (1,271) | (128)
12 months or longer, Fair Value | 951 |
12 months and longer, Unrealized Losses | (94) |
Total, Fair Value | 27,844 | 7,832
Total, Unrealized Losses | (1,365) | (128)
Corporate bonds and other securities |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 27,430 | 14,558
Less than 12 months, Unrealized Losses | (665) | (92)
12 months or longer, Fair Value | 2,439 | 2,439
12 months and longer, Unrealized Losses | (61) | (61)
Total, Fair Value | 29,869 | 16,997
Total, Unrealized Losses | $ (726) | $ (153)

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 of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity) and amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous loss position for 12 months or longer. + References No definition available. + Details
Name: | asrv_InvestmentSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
Namespace Prefix: | asrv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity) and amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position. + References No definition available. + Details
Name: | asrv_InvestmentSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
Namespace Prefix: | asrv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position. + References No definition available. + Details
Name: | asrv_InvestmentSecuritiesContinuousUnrealizedLossPositionFairValue
Namespace Prefix: | asrv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investment security measured at amortized cost (held-to-maturity) and amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous loss position for less than 12 months. + References No definition available. + Details
Name: | asrv_InvestmentSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
Namespace Prefix: | asrv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities that have been in a continuous unrealized loss position for less than twelve months. + References No definition available. + Details
Name: | asrv_InvestmentSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
Namespace Prefix: | asrv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities that have been in a continuous unrealized loss position for twelve months or longer. + References No definition available. + Details
Name: | asrv_InvestmentSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
Namespace Prefix: | asrv_
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_OtherDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |