Note 6 - Intangible Assets and Goodwill - Summary of Intangible Assets (Details) - USD ($)	Mar. 31, 2016	Mar. 31, 2015
Intangible assets, gross	$ 1,210,000
Less accumulated amortization and impairment	(100,888)
	1,109,112	$ 0
Trade Names [Member]
Intangible assets, gross	120,000
Patents [Member]
Intangible assets, gross	$ 1,090,000

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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