Consolidated Balance Sheets (In thousands, except for number of shares and per share data) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Series A convertible preferred stock par value (in Dollars per share)	$ 0.001	$ 0.001
Series A convertible preferred stock authorized	8,000,000	8,000,000
Series A convertible preferred stock shares issued	0	2,877,600
Series A convertible preferred stock shares outstanding	0	2,877,600
Series A convertible preferred stock liquidation preference (in Dollars)	$ 5	$ 7,449
Series A convertible preferred stock including accrued but unpaid dividends (in Dollars)	$ 5	$ 255
Common stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	22,146,540	17,102,320
Common stock, shares outstanding	22,146,540	17,102,320