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7. Earnings Per Share (Details)	3 Months Ended
7. Earnings Per Share (Details)	Mar. 31, 2015	Mar. 31, 2014
Earnings per share:
Weighted average common shares - basic	25,635	24,355
Incremental common shares attibutable to exercise of outstanding options and warrants	6,356	7,656
Weighted average common shares - diluted	31,991	32,011

- 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.

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