Consolidated Balance Sheets Parenthetical (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Shareholders' equity:
Common stock, par value	$ 0.00	$ 0.00
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	27,949	24,351
Common stock, shares outstanding	27,949	24,351