Note 16 - Subsequent Events (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	1 Months Ended							0 Months Ended				0 Months Ended
	May 30, 2013	Feb. 25, 2013	Sep. 30, 2009	Dec. 31, 2013	Feb. 26, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jan. 15, 2014 Subsequent Event [Member] Common Stock [Member]	Jan. 15, 2014 Subsequent Event [Member] Warrant Unit A [Member]	Jan. 15, 2015 Subsequent Event [Member] Warrant Unit B [Member]	Jan. 15, 2014 Subsequent Event [Member] Warrant Unit B [Member]	Jan. 15, 2014 Subsequent Event [Member]
Note 16 - Subsequent Events (Details) [Line Items]
Stock Issued During Period, Shares, New Issues	1,392,109	1,195,927							3,603,604
Common Stock, Par or Stated Value Per Share (in Dollars per share)				$ 0.01		$ 0.01							$ 0.01
Class of Warrant or Right, Number of Securities Called by Warrants or Rights										0.25		0.25	1,801,802
Proceeds from Issuance of Warrants (in Dollars)			$ 7.1										$ 15.0
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)					5.31	15.17	1,418.0000	23.58		4.1625	4.10	4.1625