Note 13 - Summary of the Changes in the Earn-out Milestone Liability (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Balance		$ 13,921,412
Non-cash charge from the adjustment for the change in fair value included in net loss	$ 69,392	(106,028)	$ 241,528
Balance		$ 13,815,384