XML 116 R64.htm IDEA: XBRL DOCUMENT v2.4.1.9

INVESTMENT SECURITIES (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Investment [Line Items]
Gross investment gains	$ 182,000asrv_GainOnSaleOfSecurities	$ 289,000asrv_GainOnSaleOfSecurities	$ 12,000asrv_GainOnSaleOfSecurities
Gross investment losses	5,000asrv_LossOnSaleOfSecurities	85,000asrv_LossOnSaleOfSecurities
Realized gain (loss), net of tax	117,000us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	135,000us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	8,000us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
Income tax effect	60,000us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	69,000us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	4,000us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
Weighted average expected maturity for investment securities	2 years 11 months 12 days
Investment Securities:
Proceeds from sales of investment securities - available for sale	5,242,000us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities	11,185,000us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities	4,221,000us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
Book value of securities available for sale and held to maturity	$ 104,780,000asrv_CarryingValueOfAvailableForSaleHeldToMaturityAndFederalHomeLoanBankBorrowings	$ 110,780,000asrv_CarryingValueOfAvailableForSaleHeldToMaturityAndFederalHomeLoanBankBorrowings
Positions considered temporarily impaired	38us-gaap_HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions
U.S. Agency [Member]
Investment [Line Items]
Weighted average expected maturity for available for sale securities	2 years 11 months 12 days
U.S. Agency mortgage-backed securities [Member]
Investment [Line Items]
Weighted average expected maturity for available for sale securities	4 years 3 months
Weighted average expected maturity for held to maturity securities	6 years 4 months 13 days
Corporate bonds [Member]
Investment [Line Items]
Weighted average expected maturity for available for sale securities	4 years 10 months 6 days
Corporate bonds and other securities [Member]
Investment [Line Items]
Weighted average expected maturity for held to maturity securities	5 years 9 months 11 days
Standard & Poor's, AAA Rating [Member]
Investment [Line Items]
Portfolio rated	84.10%asrv_PercentageOfInvestmentSecuritiesPortfolioRated / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsAAARatingMember	89.00%asrv_PercentageOfInvestmentSecuritiesPortfolioRated / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsAAARatingMember
Standard & Poor's, A Rating [Member]
Investment [Line Items]
Portfolio rated	3.80%asrv_PercentageOfInvestmentSecuritiesPortfolioRated / us-gaap_CreditRatingStandardPoorsAxis = us-gaap_StandardPoorsARatingMember

X

- Definition

Available For Sale Securities, Debt Maturities, Weighted Average Maturity Term

+ References

No definition available.

+ Details

Name:	asrv_AvailableForSaleSecuritiesDebtMaturitiesWeightedAverageMaturityTerm
Namespace Prefix:	asrv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying value of available for sale held to maturity and federal home loan bank.

+ References

No definition available.

+ Details

Name:	asrv_CarryingValueOfAvailableForSaleHeldToMaturityAndFederalHomeLoanBankBorrowings
Namespace Prefix:	asrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The gain realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

+ References

No definition available.

+ Details

Name:	asrv_GainOnSaleOfSecurities
Namespace Prefix:	asrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Held To Maturity Securities, Weighted Average Maturity Term.

+ References

No definition available.

+ Details

Name:	asrv_HeldToMaturitySecuritiesWeightedAverageMaturityTerm
Namespace Prefix:	asrv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	asrv_InvestmentSecuritiesAdditionalTextualAbstract
Namespace Prefix:	asrv_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Investment Securities, Debt Maturities, Weighted Average Maturity Term.

+ References

No definition available.

+ Details

Name:	asrv_InvestmentSecuritiesDebtMaturitiesWeightedAverageMaturityTerm
Namespace Prefix:	asrv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The loss realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

+ References

No definition available.

+ Details

Name:	asrv_LossOnSaleOfSecurities
Namespace Prefix:	asrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Percentage of investment securities portfolio rated.

+ References

No definition available.

+ Details

Name:	asrv_PercentageOfInvestmentSecuritiesPortfolioRated
Namespace Prefix:	asrv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	invest_InvestmentLineItems
Namespace Prefix:	invest_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure regarding factors used to determine that the impairment of securities categorized as held-to-maturity where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the held-to-maturity investments determined to be temporarily impaired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e689-108580

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e640-108580

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a),(b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_CreditRatingStandardPoorsAxis=us-gaap_StandardPoorsAAARatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CreditRatingStandardPoorsAxis=us-gaap_StandardPoorsARatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtSecurityAxis=us-gaap_CorporateBondSecuritiesMember
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_OtherDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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