14.	Earnings Per Share:

Basic earnings per share is calculated using the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share is computed in the same manner and also gives effect to all dilutive common stock equivalent shares outstanding during the period. Potential common shares that would have the effect of increasing diluted earnings per share are considered to be antidilutive. In accordance with U.S. GAAP, these shares were not included in calculating diluted earnings per share.

For the year ended December 31, 2017, the weighted average number of stock options and restricted stock units excluded from the computation of diluted earnings per share were 0 and 8, respectively. For the year ended December 31, 2016, the weighted average number of stock options and restricted stock units excluded from the computation of diluted earnings per share were 39 and 0, respectively. For the year ended December 31, 2015, the weighted average number of stock options and restricted stock units excluded from the computation of diluted earnings per share were 15 and 190, respectively.

For the years ended December 31, 2017, 2016 and 2015, diluted earnings per share-weighted average shares outstanding included the effect resulting from assumed conversion of the Notes and warrants.

The computations of basic and diluted income per share for the years ended December 31, 2017, 2016, and 2015 are as follows:

	December 31,
	2017		2016		2015
Numerator:
Net income	$	32,909	$	36,952	$	17,956
Denominator:
Basic earnings per share - weighted average shares outstanding		31,491		31,128		31,408
Effect of potential diluted securities:
Employee stock options and restricted stock units - dilutive shares		670		467		692
Convertible senior notes - dilutive shares		—		103		66
Warrants - dilutive shares		1		92		—
Diluted earnings per share - weighted average shares outstanding		32,162		31,790		32,166
Earnings per share:
Basic	$	1.05	$	1.19	$	0.57
Diluted	$	1.02	$	1.16	$	0.56