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Stock-Based Compensation (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Maximum term for an option granted	10 years
Grant date fair value of vested Restricted Stock	$ 195	$ 163
Compensation expense	242	166	116
Unrecognized compensation cost related to unvested Restricted Stock	$ 52
Outside Directors [Member]
Vesting service period of grants to executive officers	6 months
Executive Officers [Member]
Vesting service period of grants to executive officers	3 years

X

- Definition

Deferred Compensation Arrangement Grant Date Fair Value Of Vested Restricted Stock

+ References

No definition available.

+ Details

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X

- Definition

Deferred Compensation Arrangements Unrecognized Compensation Cost Related To Unvested Restricted Stock

+ References

No definition available.

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X

- Definition

Maximum Term For Option Granted Under Stock Based Compensation Plan

+ References

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- Definition

Amount of expense recognized from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments), awarded to key employees or individuals. Excludes amount related to plans that cover generally all employees (for example, but not limited to, qualified pension plans).

+ References

No definition available.

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X

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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