Note 15 - Stock-Based Compensation (Detail) - Option Activity (USD $)	6 Months Ended
	Jun. 30, 2012
Outstanding at January 1, 2012	8,027,950
Outstanding at January 1, 2012 (in Dollars per share)	$ 1.09
Granted	3,073,031
Granted (in Dollars per share)	$ 0.53
Exercised	(42,000)
Exercised (in Dollars per share)	$ 0.31
Forfeited or Expired	(1,138,321)
Forfeited or Expired (in Dollars per share)	$ 1.23
Outstanding at June 30, 2012	9,920,660
Outstanding at June 30, 2012 (in Dollars per share)	$ 0.90
Outstanding at June 30, 2012	6 years 219 days
Outstanding at June 30, 2012 (in Dollars)	$ 1,000
Exercisable at June 30, 2012	5,496,985
Exercisable at June 30, 2012 (in Dollars per share)	$ 1.13
Exercisable at June 30, 2012	5 years 73 days