Note 7 - Intangible Assets (Details) - Intangible Assets (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Cost	$ 168,148	$ 168,148
Accumulated Amortization	(151,777)	(113,398)
Net Carrying Amount	16,371	54,750
Patents and Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	82,702	82,702
Weighted Average Amortization Period (in years)	15 years	15 years
Accumulated Amortization	(66,331)	(64,369)
Net Carrying Amount	16,371	18,333
Formulas [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	25,446	25,446
Weighted Average Amortization Period (in years)	15 years	15 years
Accumulated Amortization	(25,446)	(6,291)
Net Carrying Amount		19,155
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	50,000	50,000
Weighted Average Amortization Period (in years)	7 years	7 years
Accumulated Amortization	(50,000)	(32,738)
Net Carrying Amount		17,262
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	10,000	10,000
Weighted Average Amortization Period (in years)	3 years	3 years
Accumulated Amortization	$ (10,000)	$ (10,000)