NET INCOME PER SHARE

9 Months Ended

Sep. 30, 2015

10. NET INCOME PER SHARE

For the three and nine months ended September 30, 2014 and 2015, outstanding stock options were the only potentially dilutive securities. The reconciliation from basic to diluted weighted average common shares outstanding is as follows (in thousands):


	Three months ended September 30,		Nine months ended September 30,
	2014	2015	2014	2015
Basic weighted-average common shares outstanding	15,923	16,049	15,890	16,009
Stock options	107	116	111	119
Diluted weighted-average common shares outstanding	16,030	16,165	16,001	16,128

The above calculation for the three and nine months ended September 30, 2015, does not include approximately 2,000 and 1,000 shares related to certain stock options because the effect of such options were anti-dilutive. There were no anti-dilutive shares for the three and nine months ended September 30, 2014.