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Employee Benefit Plans (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]
Defined contribution plan, eligibiilty, minimum employee age	21 years
Defined contribution plan, eligibility, minimum employee service time for participation eligibility	6 months
Defined contribution plan, employer discretionary contribution amount	$ 50,000	$ 50,000	$ 50,000
Deferred Compensation Arrangements [Abstract]
Deferred compensation liability	100,000
Deferred compensation assets	$ 600,000

X

- Definition

Defined Contribution Plan, Eligibility, Minimum Employee Age

+ References

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- Definition

Defined Contribution Plan, Eligibility, Minimum Employee Service Time for Participation Eligibility

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

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- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

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