XML 57 R42.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Investment Securities (Details 1) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | $ 66,255 | $ 83,997
Less than 12 months, Unrealized Losses | (936) | (1,797)
12 months or longer, Fair Value | 16,075 | 8,338
12 months or longer, Unrealized Losses | (505) | (299)
Total, Fair Value | 82,330 | 92,335
Total, Unrealized Losses | (1,441) | (2,096)
U.S. Agency [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 3,990 | 398
Less than 12 months, Unrealized Losses | (33) | (2)
12 months or longer, Fair Value | 399 | 0
12 months or longer, Unrealized Losses | (1) | 0
Total, Fair Value | 4,389 | 398
Total, Unrealized Losses | (34) | (2)
U.S. Agency mortgage-backed securities [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 38,127 | 49,918
Less than 12 months, Unrealized Losses | (321) | (703)
12 months or longer, Fair Value | 3,239 | 1,576
12 months or longer, Unrealized Losses | (84) | (62)
Total, Fair Value | 41,366 | 51,494
Total, Unrealized Losses | (405) | (765)
Taxable Municipal [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 11,724 | 13,301
Less than 12 months, Unrealized Losses | (377) | (522)
12 months or longer, Fair Value | 2,172 | 0
12 months or longer, Unrealized Losses | (103) | 0
Total, Fair Value | 13,896 | 13,301
Total, Unrealized Losses | (480) | (522)
Corporate bonds and other securities [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 12,414 | 20,380
Less than 12 months, Unrealized Losses | (205) | (570)
12 months or longer, Fair Value | 10,265 | 6,762
12 months or longer, Unrealized Losses | (317) | (237)
Total, Fair Value | 22,679 | 27,142
Total, Unrealized Losses | $ (522) | $ (807)

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
- References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

X
- Details
Name: | us-gaap_DebtSecurityAxis=us-gaap_TaxableMunicipalBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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