Note 7 - Acquisition of EGEN, Inc. (Details) - Fair Value of Consideration (Parentheticals) (USD $)		0 Months Ended
	Jan. 15, 2014	Jun. 06, 2014 EGEN, Inc. [Member]	Jun. 06, 2014 EGEN, Inc. [Member]
Business Acquisition, Contingent Consideration [Line Items]
Common Stock, share			2,712,188
Common Stock, price per share (in Dollars per share)	$ 4.1625	$ 3.48	$ 3.48
Common Stock, shares		2,712,188	670,070
Common Stock, discount			38.00%