Earnings per share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Schedule of Reconciliation of Weighted Average Shares Used in Calculation of Basic and Diluted Earnings Per Share

The following is a reconciliation of the weighted average shares used in the basic and diluted net income (loss) per common share computations.

	Three Months Ended March 31,
	2014		2013
Weighted average common shares-basic		18,197,363		19,431,093
Effect of dilutive securities:
Unexercised stock options net of treasury share repurchase		—		260,048
Weighted average common shares-diluted		18,197,363		19,691,141