Earnings and Dividends per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Number of Shares Outstanding for Calculation of Earnings Per Share

The computational components of basic and diluted earnings per share for the three-month periods ended March 31, 2018 and 2017 are below.

	For the three month period ended March 31, 2018
	Numerator (Income)		Denominator (Shares)		Per Share Amount
Basic net income and earnings per share	$	5,763		34,593	$	0.17
Effect of dilutive securities:
Common stock equivalents arising from stock options,    restricted stock awards, and employee stock purchase plan		—		48		—
Diluted earnings and earnings per share	$	5,763		34,641	$	0.17

	For the three month period ended March 31, 2017
	Numerator (Income)		Denominator (Shares)		Per Share Amount
Basic net income and earnings per share	$	38		34,216	$	0.00
Effect of dilutive securities:
Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan		—		347		—
Diluted earnings and earnings per share	$	38		34,563	$	0.00