XML 84 R73.htm IDEA: XBRL DOCUMENT v3.21.2

Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2021	Jun. 30, 2021
Commitments And Contingencies [Abstract]
Allowance against letters of credit	$ 2,400		$ 1,500
Letters of credit cancelled		$ 250

X

- Definition

Letters of credit cancelled.

+ References

No definition available.

+ Details

Name:	fraf_LettersOfCreditCancelled
Namespace Prefix:	fraf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Off Balance Sheet Reserves

+ References

No definition available.

+ Details

Name:	fraf_OffBalanceSheetReserves
Namespace Prefix:	fraf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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