Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current Assets:
Accounts receivable, allowance for doubtful accounts	$ 350	$ 399
Shareholders' Equity:
Common stock, shares authorized	480,000,000	240,000,000
Common stock, shares issued	122,538,279	122,035,177
Common stock, shares outstanding	122,538,279	122,035,177