Note 13 - Warrants (Details) - Shares of Common Stock Associated With Waived Warrants (USD $)					1 Months Ended
	Jun. 30, 2014	Jan. 15, 2014	Dec. 31, 2013	Feb. 26, 2013	Jun. 30, 2014 Warrants Issued in 2009 Registered Direct Offering [Member]	Jun. 30, 2013 Warrants Issued in 2009 Registered Direct Offering [Member]
Class of Warrant or Right [Line Items]
(in Shares)	5,069,815		3,268,013		448,478
					Mar. 31, 2015
	$ 8.18	$ 4.10	$ 10.43	$ 5.31	$ 23.58
						$ 0.71