XML 106 R91.htm IDEA: XBRL DOCUMENT v3.10.0.1

SHORT-TERM BORROWINGS (Details Textual)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Short-term Debt [Line Items]
Average maturity	1 day	3 days	3 days

X

- Definition

Debt Instrument, Weighted Average Term.

+ References

No definition available.

+ Details

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

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ShortTermDebtLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration