Note 9 - Fair Value Measurements (Details) - Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques - USD ($)							6 Months Ended	12 Months Ended
	Aug. 12, 2013	Jul. 12, 2013	Feb. 14, 2013	Nov. 20, 2012	Jul. 26, 2012	Sep. 10, 2010	Sep. 30, 2015	Mar. 31, 2015
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Liability							$ 969,790	$ 518,962
Warrant [Member] | Warrant Issued 09-10-2010 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Expiration Date						Sep. 10, 2019	Sep. 10, 2019	Sep. 10, 2019
Warrant, Number of Warrants (in Shares)						136,920	136,920	136,920
Warrant, Exercise Price (in Dollars per share)						$ 6.70	$ 6.70	$ 6.70
Warrant, Fair Market Value Per Share (in Dollars per share)						$ 6.70	$ 4.65	$ 6.42
Warrant, Put Option							$ 462,790	$ 68,460
Warrant, Market Price Option							$ 0	$ 0
Warrant, Expected Volatility						28.51%
Warrant, Remaining Life in Years						9 years	3 years 346 days	4 years 164 days
Warrant, Risk Free Interest Rate						2.81%
Warrant, Liability						$ 267,848	$ 462,790	$ 68,460
Warrant [Member] | Warrant Issued 09-10-2010 #2 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Expiration Date						Sep. 10, 2015		Sep. 10, 2015
Warrant, Number of Warrants (in Shares)						10,416		10,416
Warrant, Exercise Price (in Dollars per share)						$ 6.70		$ 6.70
Warrant, Fair Market Value Per Share (in Dollars per share)						$ 6.70		$ 6.42
Warrant, Put Option								$ 0
Warrant, Market Price Option								$ 0
Warrant, Expected Volatility						28.51%
Warrant, Remaining Life in Years						5 years		164 days
Warrant, Risk Free Interest Rate						1.59%
Warrant, Liability						$ 13,808		$ 7,002
Warrant [Member] | Warrant Issued 07-26-2012 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Expiration Date					Sep. 10, 2019		Sep. 10, 2019	Sep. 10, 2019
Warrant, Number of Warrants (in Shares)					50,000		50,000	50,000
Warrant, Exercise Price (in Dollars per share)					$ 3.35		$ 3.35	$ 3.35
Warrant, Fair Market Value Per Share (in Dollars per share)					$ 3.90		$ 4.65	$ 6.42
Warrant, Put Option							$ 169,000	$ 30,000
Warrant, Market Price Option							$ 64,000	$ 153,500
Warrant, Expected Volatility					42.04%
Warrant, Remaining Life in Years					7 years		3 years 346 days	4 years 164 days
Warrant, Risk Free Interest Rate					0.94%
Warrant, Liability					$ 66,193		$ 169,000	$ 153,500
Warrant [Member] | Warrant Issued 07-26-2012 #2 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Expiration Date					Sep. 10, 2019		Sep. 10, 2019	Sep. 10, 2019
Warrant, Number of Warrants (in Shares)					20,000		20,000	20,000
Warrant, Exercise Price (in Dollars per share)					$ 3.35		$ 3.35	$ 3.35
Warrant, Fair Market Value Per Share (in Dollars per share)					$ 3.90		$ 4.65	$ 6.42
Warrant, Put Option							$ 67,600	$ 13,200
Warrant, Market Price Option							$ 26,000	$ 61,400
Warrant, Expected Volatility					42.04%
Warrant, Remaining Life in Years					7 years		3 years 346 days	4 years 164 days
Warrant, Risk Free Interest Rate					0.94%
Warrant, Liability					$ 26,477		$ 67,600	$ 61,400
Warrant [Member] | Warrant Issued 11-20-2012 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Expiration Date				Sep. 10, 2019			Sep. 10, 2019	Sep. 10, 2019
Warrant, Number of Warrants (in Shares)				20,000			20,000	20,000
Warrant, Exercise Price (in Dollars per share)				$ 3.56			$ 3.56	$ 3.56
Warrant, Fair Market Value Per Share (in Dollars per share)				$ 3.50			$ 4.65	$ 6.42
Warrant, Put Option							$ 67,600	$ 13,200
Warrant, Market Price Option							$ 21,800	$ 57,200
Warrant, Expected Volatility				42.45%
Warrant, Remaining Life in Years				6 years 302 days			3 years 346 days	4 years 164 days
Warrant, Risk Free Interest Rate				1.09%
Warrant, Liability				$ 21,441			$ 67,600	$ 57,200
Warrant [Member] | Warrant Issued 02-14-2013 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Expiration Date			Sep. 10, 2019				Sep. 10, 2019	Sep. 10, 2019
Warrant, Number of Warrants (in Shares)			20,000				20,000	20,000
Warrant, Exercise Price (in Dollars per share)			$ 3.58				$ 3.58	$ 3.58
Warrant, Fair Market Value Per Share (in Dollars per share)			$ 3.80				$ 4.65	$ 6.42
Warrant, Put Option							$ 67,600	$ 13,200
Warrant, Market Price Option							$ 19,600	$ 55,000
Warrant, Expected Volatility			41.25%
Warrant, Remaining Life in Years			6 years 211 days				3 years 346 days	4 years 164 days
Warrant, Risk Free Interest Rate			1.43%
Warrant, Liability			$ 23,714				$ 67,600	$ 55,000
Warrant [Member] | Warrant Issued 07-12-2013 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Expiration Date		Sep. 10, 2019					Sep. 10, 2019	Sep. 10, 2019
Warrant, Number of Warrants (in Shares)		20,000					20,000	20,000
Warrant, Exercise Price (in Dollars per share)		$ 3.33					$ 3.33	$ 3.33
Warrant, Fair Market Value Per Share (in Dollars per share)		$ 3.32					$ 4.65	$ 6.42
Warrant, Put Option							$ 67,600	$ 13,200
Warrant, Market Price Option							$ 26,400	$ 61,800
Warrant, Expected Volatility		40.26%
Warrant, Remaining Life in Years		6 years 62 days					3 years 346 days	4 years 164 days
Warrant, Risk Free Interest Rate		2.00%
Warrant, Liability		$ 19,523					$ 67,600	$ 61,800
Warrant [Member] | Warrant Issued 08-12-2013 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Expiration Date	Sep. 10, 2019						Sep. 10, 2019	Sep. 10, 2019
Warrant, Number of Warrants (in Shares)	20,000						20,000	20,000
Warrant, Exercise Price (in Dollars per share)	$ 3.69						$ 3.69	$ 3.69
Warrant, Fair Market Value Per Share (in Dollars per share)	$ 3.69						$ 4.65	$ 6.42
Warrant, Put Option							$ 67,600	$ 13,200
Warrant, Market Price Option							$ 19,200	$ 54,600
Warrant, Expected Volatility	40.20%
Warrant, Remaining Life in Years	6 years 29 days						3 years 346 days	4 years 164 days
Warrant, Risk Free Interest Rate	2.01%
Warrant, Liability	$ 21,587						$ 67,600	$ 54,600