Note 11 - Preferred Stock and Warrant (Detail) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended		1 Months Ended
	Jan. 31, 2009	Jun. 30, 2012 Warrant [Member]	Jan. 31, 2009 Series A Preferred Stock [Member]
Stock Issued During Period, Shares, New Issues			30,000
Proceeds from Issuance of Preferred Stock and Preference Stock (in Dollars)	$ 30.0
Class of Warrant or Right, Outstanding		223,992
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)		20.09