Earnings (Loss) Per Share (Details)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Reconciling basic to diluted weighted average stock outstanding to diluted weighted average stock outstanding
Basic weighted average stock outstanding	31,040,000	30,432,000	25,779,000
Dilutive weighted average stock outstanding	32,425,000	31,545,000	26,777,000
Additional stock options and warrants outstanding			3,122,836
Warrants
Reconciling basic to diluted weighted average stock outstanding to diluted weighted average stock outstanding
Warrants	926,000	689,000	545,000
Employee stock options
Reconciling basic to diluted weighted average stock outstanding to diluted weighted average stock outstanding
Employee stock options	442,000	396,000	453,000
Restricted stock units
Reconciling basic to diluted weighted average stock outstanding to diluted weighted average stock outstanding
Employee stock options	17,000	28,000	0
Stock Options \| Warrants
Reconciling basic to diluted weighted average stock outstanding to diluted weighted average stock outstanding
Additional stock options and warrants outstanding	308,698	308,698

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

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

+ References

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

+ Details