Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Stock option awards, contractual term			1 year
Stock-based compensation expense	$ 31,000	$ 86,000	$ 86,000	$ 183,000
Shares available for grant	189,750		189,750
Total intrinsic value (at exercise) of stock options exercised	8,632	187,220	8,632	187,220
Total unrecognized compensation cost related to non-vested stock options	$ 451,000		$ 451,000
Weighted average period over which compensation cost is expected to be recognized	3 years 2 months 12 days
Options exercised during period			2,333
Share-based awards, shares issued	3,567		7,110
Share-based awards, weighted-average grant date fair value	$ 5.25		$ 5.27
Minimum [Member]
Stock option awards, waiting period			3 years
Maximum [Member]
Stock option awards, vesting term			5 years

Share Based Compensation Arrangement By Share Based Payment Award Waiting Period For Vesting

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- Definition

Stock option awards contractual term.

+ References

No definition available.

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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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.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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Number of share options (or share units) exercised during the current period.

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