Earnings per share

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Earnings per share

20. Earnings per share

For each of the three years ended December 31, 2012, there were no adjustments to net income (loss) for purposes of calculating basic and diluted net income (loss) available to common shareholders. The following is a reconciliation of the weighted average shares used in the basic and diluted net income (loss) per common share computations.

	Year Ended December 31,
	2012		2011		2010
Weighted average common shares-basic		18,977,263		18,219,343		17,601,956
Effect of diluted securities:
Unexercised stock options net of treasury share repurchase		413,150		—		311,589
Weighted average common share-diluted		19,390,413		18,219,343		17,913,545

No adjustment has been made in 2011 for any common stock equivalents because their effects would be anti-dilutive. For 2011, potentially dilutive shares totaled 344,168.

Options to purchase shares of common stock with exercise prices in excess of the average market price of common shares are not included in the computation of diluted earnings per share. There were 789,650 and 1,487,809 outstanding options not included in the diluted earnings per share computation for the fiscal years ended December 31, 2012 and 2011, respectively, because the inclusion of these options was anti-dilutive.