Net Income (Loss) Per Share

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

NET INCOME (LOSS) PER SHARE

NET INCOME (LOSS) PER SHARE

Basic net income or loss per share is based upon the weighted average number of shares of common stock outstanding during the period. 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 and vesting of stock grants per U.S. generally accepted accounting principles, or GAAP.

	Three Months Ended March 31
	2013	2012
Weighted average number of shares outstanding:
Common stock	20,100,115	19,990,558
Common stock equivalents-stock options, grants	15,327	32,744
Diluted shares outstanding	20,115,442	20,023,302