Earnings (Loss) Per Share (Details) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Reconciliation of shares used for basic and diluted earnings per share [Abstract]
Weighted average common shares used for basic EPS (in shares)	18,884	18,845
Dilutive effect of stock-based awards (in shares)	0	66
Shares used for diluted EPS (in shares)	18,884	18,911
Stock-based awards not included in diluted per share calculations as they would be antidilutive (in shares)	214	25

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References+ Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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+ Details