9.	Earnings and Dividends 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

Options, restricted stock units and warrants included in the computation of diluted earnings per share are calculated using the treasury stock method. For the three-month periods ended March 31, 2018 and 2017, 0.6 million and 0.8 million, respectively, of outstanding options and warrants were excluded from the computation of diluted earnings per share due to their having an anti-dilutive effect.

Once a restricted stock unit vests, it is included in the computation of weighted average shares outstanding for purposes of basic and diluted earnings per share.