Note 12 - Segment Reporting (Details) - Summary of Company's Amortizable Intangible Assets by Geographic Region - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Note 12 - Segment Reporting (Details) - Summary of Company's Amortizable Intangible Assets by Geographic Region [Line Items]
Amortizable intangible assets	$ 1,370,062	$ 735,730
UNITED STATES
Note 12 - Segment Reporting (Details) - Summary of Company's Amortizable Intangible Assets by Geographic Region [Line Items]
Amortizable intangible assets	736,992
GERMANY
Note 12 - Segment Reporting (Details) - Summary of Company's Amortizable Intangible Assets by Geographic Region [Line Items]
Amortizable intangible assets	$ 633,070	$ 735,730