Note 11 - Stockholders' Equity (Details) - The 2014 Private Placement (USD $)	3 Months Ended
	Mar. 31, 2014
Note 11 - Stockholders' Equity (Details) - The 2014 Private Placement [Line Items]
Gross proceeds from private placement	$ 3,370,000
2014 Private Placement [Member] | Common Stock Including Additional Paid in Capital [Member]
Note 11 - Stockholders' Equity (Details) - The 2014 Private Placement [Line Items]
Gross proceeds from private placement	2,034,000
2014 Private Placement [Member]
Note 11 - Stockholders' Equity (Details) - The 2014 Private Placement [Line Items]
Gross proceeds from private placement	3,390,000
Less: cash issuance costs – legal fees	(20,000)
Recorded in additional paid-in capital and common stock	2,014,000
Less: gross proceeds allocated to warrants liability – investors	$ (1,356,000)