XML 140 R125.htm IDEA: XBRL DOCUMENT
v3.10.0.1

DERIVATIVE HEDGING INSTRUMENTS (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Derivative, Notional Amount | $ 0 | $ 0
Derivative Instruments Weighted Average Interest Rate Received Paid | 8212.00% | 8212.00%
Increase Decrease In Interest Expense | $ 0 | $ 0
Derivative Financial Instruments, Liabilities [Member] | Swap [Member] |  |
Derivative, Swap Type | Fair Value | Fair Value
Derivative Liability, Notional Amount | $ (19,824,565) | $ (16,948,686)
Derivative Instruments Weighted Average Interest Rate Received Paid | (4.31%) | (3.47%)
Derivative Instruments, Repricing Frequency | Monthly | Monthly
Increase Decrease In Interest Expense | $ 40,893,000 | $ 110,778,000
Derivative Financial Instruments, Assets [Member] | Swap [Member] |  |
Derivative, Swap Type | Fair Value | Fair Value
Derivative Asset, Notional Amount | $ 19,824,565 | $ 16,948,686
Derivative Instruments Weighted Average Interest Rate Received Paid | 4.31% | 3.47%
Derivative Instruments, Repricing Frequency | Monthly | Monthly
Increase Decrease In Interest Expense | $ (40,893,000) | $ (110,778,000)

X
- Definition Description for repricing frequency of derivative instruments. + References No definition available. + Details
Name: | asrv_DerivativeInstrumentsRepricingFrequency
Namespace Prefix: | asrv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of interest received(Paid) during the period under Interest Rate swap transaction. + References No definition available. + Details
Name: | asrv_DerivativeInstrumentsWeightedAverageInterestRateReceivedPaid
Namespace Prefix: | asrv_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition This amount represents the increase (decrease) in interest expense (not fair value) of interest rate swaps. + References No definition available. + Details
Name: | asrv_IncreaseDecreaseInInterestExpense
Namespace Prefix: | asrv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeAssetNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeLiabilityNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Indicates whether the entity pays a variable or fixed price on a price risk swap. + References No definition available. + Details
Name: | us-gaap_DerivativeSwapType
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_DerivativeFinancialInstrumentsAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |