Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
CURRENT ASSETS:
Allowances for doubtful Accounts	$ 1,520	$ 3,925
SHAREHOLDERS' EQUITY:
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	62,180,040	61,604,160
Common stock, shares outstanding	62,180,040	61,604,160