Net Income (Loss) per Common Share (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Schedule of reconciliation of basic and diluted weighted average common shares outstanding
Weighted average common shares outstanding - basic	14,776,239	14,901,495	14,690,591	14,825,091
Dilutive common shares issuable in connection with stock plans	110,309	298,405
Weighted average common shares outstanding - diluted	14,886,548	15,199,900	14,690,591	14,825,091

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met.

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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.

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- 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