Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance	$ 15	$ 9
Common stock, shares authorized	800,000,000	800,000,000
Common stock, no par value
Common stock, shares issued	300,156,120	297,746,376
Common stock, shares outstanding	300,156,120	297,746,376