Note 14 - Stockholders' Equity (Details) - Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques - USD ($)	6 Months Ended
	Jun. 30, 2015	Mar. 24, 2016	May 03, 2013
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Market price of common stock ($) (in Dollars per share)		$ 1.20	$ 3.82
Number of shares of common stock underlying the warrants (in Shares)	9,242
Dividend yield:	0.00%
Fair value ($) (in Dollars)	$ 1,764
Placement Agent Warrants [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Market price of common stock ($) (in Dollars per share)	$ 1.87
Number of shares of common stock underlying the warrants (in Shares)	9,242
Exercise price ($) (in Dollars per share)	$ 8.48
Remaining contractual life (years):	2 years 288 days
Dividend yield:	0.00%
Expected volatility:	69.00%
Risk-free interest rate:	1.01%
Fair value ($) (in Dollars)	$ 1,764