Diluted net income per share is based upon the weighted average number of shares of common stock outstanding and the weighted average number of shares outstanding assuming the issuance of common stock upon exercise of stock options, warrants to purchase common stock, and vesting of stock grants per U.S. generally accepted accounting principles, or GAAP.



	Three Months Ended September 30		Nine Months Ended September 30
	2013	2012	2013	2012
Weighted average number of shares outstanding:
Common stock	20,140,473	20,074,233	20,125,792	20,030,396
Common stock equivalents-stock options, grants	45,489	18,821	40,864	58,695
Diluted shares outstanding	20,185,962	20,093,054	20,166,656	20,089,091