Earnings per share (Tables)

3 Months Ended

Mar. 31, 2017

Weighted Average Number of Shares Used in Computing Earnings per Share

The following table shows the weighted average number of shares used in computing earnings per share and the effect on the weighted average number of shares of dilutive potential common stock.

	For the three months ended
	March 31, 2017					March 31, 2016
	Average		Per share			Average		Per share
	Shares		Amount			Shares		Amount
Basic earnings per share		4,776,800	$	(0.04	)		4,774,856	$	0.11
Effect of dilutive securities:
Stock options		—					16,283
Diluted earnings per share		4,776,800	$	(0.04	)		4,791,139	$	0.11