Basic and Diluted Net Income (Loss) Per Share

9 Months Ended

Sep. 30, 2011

Basic and Diluted Net Income (Loss) Per Share [Abstract]

BASIC AND DILUTED NET INCOME (LOSS) PER SHARE

8) BASIC AND DILUTED NET INCOME (LOSS) PER SHARE

Basic net income (loss) per common share is based on the weighted-average number of common shares outstanding during each period. Diluted net income (loss) is based on the weighted-average shares outstanding and any contingently issuable shares. The net outstanding shares are adjusted for the dilutive effect of shares issuable upon the assumed conversion of the Company’s common stock equivalents, which consist of outstanding stock options, warrants and unvested shares of common stock.

	Three-months ended				Nine-months ended
	September 30, 2011		September 30, 2010		September 30, 2011		September 30, 2010
Weighted average common shares outstanding-basic		24,649,364		24,209,215		24,492,137		24,173,399
Stock options, warrants and unvested shares of common stock		1,792,887		449,629		1,893,003		—
Weighted average common shares outstanding-diluted		26,442,251		24,658,844		26,385,140		24,173,399

The following stock options were not included in weighted average diluted common shares outstanding because they are anti-dilutive:

	Three-months ended				Nine-months ended
	September 30, 2011		September 30, 2010		September 30, 2011		September 30, 2010
Stock options		902,000		2,934,000		894,000		3,173,000
Warrants		—		1,395,000		—		1,395,000
Unvested shares of common stock		42,000		375,000		14,000		586,000
Total		944,000		4,704,000		908,000		5,154,000