XML 58 R69.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Pension Benefits (Narrative) (Details) | 6 Months Ended
--- | ---
Jun. 30, 2013
Pension Benefits [Line Items] |
Noncontributory defined benefit pension plan, least work hours per year | 1,000
Participants vested interest accrued benefit, service period, years | 5 years
Benefits plan based on service and average annual earnings for highest consecutive calendar years | 5 years
Benefits plan based on service and average annual earnings for highest consecutive calendar years from final employment period years | 10 years
Maximum [Member] | AmeriServ Financial Inc [Member] |
Pension Benefits [Line Items] |
Plan assets, listed common stocks, percentage | 10.00%

X
- Definition Benefits plan based on service and average annual earnings for highest consecutive calendar years. + References No definition available. + Details
Name: | asrv_BenefitsPlanBasedOnServiceAndAverageAnnualEarningsForHighestConsecutiveCalendarYears
Namespace Prefix: | asrv_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Benefits plan based on service and average annual earnings for highest consecutive calendar years from final employment period years. + References No definition available. + Details
Name: | asrv_BenefitsPlanBasedOnServiceAndAverageAnnualEarningsForHighestConsecutiveCalendarYearsFromFinalEmploymentPeriodYears
Namespace Prefix: | asrv_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Noncontributory defined benefit pension plan, least work hours per year. + References No definition available. + Details
Name: | asrv_NoncontributoryDefinedBenefitPensionPlanLeastWorkHoursPerYear
Namespace Prefix: | asrv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Participants vested interest accrued benefit, service period. + References No definition available. + Details
Name: | asrv_ParticipantsVestedInterestAccruedBenefitServicePeriod
Namespace Prefix: | asrv_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | asrv_PensionBenefitsLineItems
Namespace Prefix: | asrv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Target allocation of investments of this type to total plan assets presented on a weighted average basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920 + Details
Name: | us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration