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Non-performing Assets Including Troubled Debt Restructurings (TDR) (Details Textual)	Sep. 30, 2017 USD ($)
ALL reserve for TDR's	$ 390,000

X

- Definition

Allowance for loan and lease losses pertaining to troubled debt restructurings.

+ References

No definition available.

+ Details

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