XML 85 R108.htm IDEA: XBRL DOCUMENT v2.4.0.8

401(k) Profit Sharing Plan (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
401(k) Profit Sharing Plan [Abstract]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match, First One Percent of Contributions	1.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match, Next Five Percent of Contributions	5.00%
Defined Contribution Plan, Cost Recognized	$ 0.9	$ 0.7

X

- Definition

Percentage employer matches of the employee's first one percentage contribution matched.

+ References

No definition available.

+ Details

Name:	func_DefinedContributionPlanEmployerMatchingContributionPercentOfMatchFirstOnePercentOfContributions
Namespace Prefix:	func_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage employer matches of the employee's next five percentage contribution matched.

+ References

No definition available.

+ Details

Name:	func_DefinedContributionPlanEmployerMatchingContributionPercentOfMatchNextFivePercentOfContributions
Namespace Prefix:	func_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

+ Details

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