Basic And Diluted Earnings (Loss) Per Common Share (Reconciliation Of Diluted Earnings (Loss) Per Common Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
Basic And Diluted Earnings (Loss) Per Common Share [Abstract]
Net income (loss)	$ 440	$ (8,452)
Weighted-average common shares, basic	35,953,664	34,662,648
Dilutive effect of common stock equivalents	2,696,069
Weighted-average common shares, diluted	38,649,733	34,662,648

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Reference 9: http://www.xbrl.org/2003/role/presentationRef

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-Glossary Other Comprehensive Income

-URI http://asc.fasb.org/extlink&oid=6519514

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Reference 12: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Net Income

-URI http://asc.fasb.org/extlink&oid=6518256

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

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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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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-Glossary Weighted-Average Number of Common Shares Outstanding

-URI http://asc.fasb.org/extlink&oid=6528421

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-Publisher FASB

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+ Details