Earnings per share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Schedule of Reconciliation of Weighted Average Shares Used in Calculation of Basic and Diluted Net (Loss) Income Per Share

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Weighted average common shares-basic		18,147,681		18,769,415		18,312,781		18,750,804
Effect of dilutive securities:
Unexercised stock options net of treasury share repurchase		—		220,164		—		—
Weighted average common shares-diluted		18,147,681		18,989,579		18,312,781		18,750,804