Note 16 - Subsequent Events (Details) (USD $) In Thousands, except Share data, unless otherwise specified								0 Months Ended
	Mar. 31, 2014	Feb. 24, 2014	Jul. 31, 2013	May 31, 2013	May 30, 2014 Subsequent Event [Member] Series C Preferred Stock [Member]	May 02, 2014 Subsequent Event [Member] Series C Preferred Stock [Member]	Apr. 30, 2014 Subsequent Event [Member] Series C Preferred Stock [Member]	Apr. 08, 2014 Subsequent Event [Member] Revolving Credit Facility [Member]	May 02, 2014 Subsequent Event [Member]	May 31, 2014 Subsequent Event [Member]	May 02, 2014 Subsequent Event [Member] Minimum [Member]	Apr. 30, 2014 Subsequent Event [Member] Minimum [Member]	May 02, 2014 Subsequent Event [Member] Maximum [Member]	Apr. 30, 2014 Subsequent Event [Member] Maximum [Member]
Note 16 - Subsequent Events (Details) [Line Items]
Line of Credit Facility, Expiration Period								3 years
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)	$ 5,000		$ 37					$ 5,000
Debt Instrument, Interest Rate, Stated Percentage				10.00%				12.00%
Maximum Amount of Capital Raise Before Termination Allowed (in Dollars)								$ 5,000
Convertible Preferred Stock, Shares Issued upon Conversion (in Shares)									775,395	632,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share)					$ 0.25	$ 2.71	$ 3.40
Class of Warrant or Right, Exercise Price of Warrants or Rights		5.04									3.39	4.75	4.07	5.10
Preferred Stock Dividends, Shares (in Shares)									62,029