XML 63 R50.htm IDEA: XBRL DOCUMENT
v3.20.2

Investment Securities - Information concerning investments with unrealized losses (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | $ 18,223 | $ 17,150
Less than 12 months, Unrealized Losses | (265) | (126)
12 months or longer, Fair Value | 7,749 | 21,468
12 months or longer, Unrealized Losses | (192) | (370)
Total, Fair Value | 25,972 | 38,618
Total, Unrealized Losses | (457) | (496)
U.S. Agency mortgage-backed securities |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 1,438 | 7,084
Less than 12 months, Unrealized Losses | (5) | (23)
12 months or longer, Fair Value | 138 | 8,562
12 months or longer, Unrealized Losses | (1) | (75)
Total, Fair Value | 1,576 | 15,646
Total, Unrealized Losses | (6) | (98)
Municipal |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 1,044 | 2,269
Less than 12 months, Unrealized Losses | (1) | (18)
12 months or longer, Fair Value | 752 | 1,123
12 months or longer, Unrealized Losses | (50) | (52)
Total, Fair Value | 1,796 | 3,392
Total, Unrealized Losses | (51) | (70)
Corporate bonds and other securities |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 15,741 | 7,797
Less than 12 months, Unrealized Losses | (259) | (85)
12 months or longer, Fair Value | 6,859 | 11,783
12 months or longer, Unrealized Losses | (141) | (243)
Total, Fair Value | 22,600 | 19,580
Total, Unrealized Losses | $ (400) | $ (328)

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 pre-tax unrealized loss on securities that have been in a loss position for twelve months or longer recognized in Accumulated Other Comprehensive Income (AOCI). + References No definition available. + Details
Name: | asrv_InvestmentSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI
Namespace Prefix: | asrv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated pre-tax unrealized loss on securities recognized in Accumulated Other Comprehensive Income (AOCI). + References No definition available. + Details
Name: | asrv_InvestmentSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI
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 pre-tax unrealized loss on investment securities that have been in a loss position for less than twelve months recognized in Accumulated Other Comprehensive Income (AOCI). + References No definition available. + Details
Name: | asrv_InvestmentSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI
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_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: |