Note 10 - Fair Value Measurements (Details) - Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques (USD $)	0 Months Ended	9 Months Ended	12 Months Ended	0 Months Ended
	Sep. 10, 2010	Dec. 31, 2014	Mar. 31, 2014	Jul. 26, 2012	Nov. 20, 2012	Feb. 14, 2013	Jul. 12, 2013	Aug. 12, 2013
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Warrant, Warrant Liability (in Dollars)		$ 423,059	$ 354,309
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	$ 6.70	$ 6.70	$ 6.70
Warrant, Fair Market Value Per Share	$ 6.70	$ 5.34	$ 4.42
Warrant, Expected Volatility	28.51%		43.35%
Warrant, Put Option (in Dollars)		138,289
Warrant, Market Price Option (in Dollars)
Warrant, Remaining Life in Years	9 years	4 years 255 days	5 years 164 days
Warrant, Risk Free Interest Rate	2.81%		1.73%
Warrant, Warrant Liability (in Dollars)	267,848	138,289	123,564
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	Sep. 10, 2015
Warrant, Number of Warrants (in Shares)	10,416	10,416	10,416
Warrant, Exercise Price	$ 6.70	$ 6.70	$ 6.70
Warrant, Fair Market Value Per Share	$ 6.70	$ 5.34	$ 4.42
Warrant, Expected Volatility	28.51%		43.35%
Warrant, Put Option (in Dollars)
Warrant, Market Price Option (in Dollars)
Warrant, Remaining Life in Years	5 years	255 days	1 year 164 days
Warrant, Risk Free Interest Rate	1.59%		0.44%
Warrant, Warrant Liability (in Dollars)	13,808	3,270	2,498
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		$ 3.35	$ 3.35	$ 3.35
Warrant, Fair Market Value Per Share		$ 5.34	$ 4.42	$ 3.90
Warrant, Expected Volatility			43.35%	42.04%
Warrant, Put Option (in Dollars)		20,200
Warrant, Market Price Option (in Dollars)		39,800
Warrant, Remaining Life in Years		4 years 255 days	5 years 164 days	7 years
Warrant, Risk Free Interest Rate			1.73%	0.94%
Warrant, Warrant Liability (in Dollars)		39,800	77,626	66,193
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		$ 3.35	$ 3.35	$ 3.35
Warrant, Fair Market Value Per Share		$ 5.34	$ 4.42	$ 3.90
Warrant, Expected Volatility			43.35%	42.04%
Warrant, Put Option (in Dollars)		50,500
Warrant, Market Price Option (in Dollars)		99,500
Warrant, Remaining Life in Years		4 years 255 days	5 years 164 days	7 years
Warrant, Risk Free Interest Rate			1.73%	0.94%
Warrant, Warrant Liability (in Dollars)		99,500	31,050	26,477
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		$ 3.56	$ 3.56		$ 3.56
Warrant, Fair Market Value Per Share		$ 5.34	$ 4.42		$ 3.50
Warrant, Expected Volatility			43.35%		42.45%
Warrant, Put Option (in Dollars)		20,200
Warrant, Market Price Option (in Dollars)		35,600
Warrant, Remaining Life in Years		4 years 255 days	5 years 164 days		6 years 302 days
Warrant, Risk Free Interest Rate			1.73%		1.09%
Warrant, Warrant Liability (in Dollars)		35,600	29,892		21,441
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		$ 3.58	$ 3.58			$ 3.58
Warrant, Fair Market Value Per Share		$ 5.34	$ 4.42			$ 3.80
Warrant, Expected Volatility			43.35%			41.25%
Warrant, Put Option (in Dollars)		20,200
Warrant, Market Price Option (in Dollars)		33,400
Warrant, Remaining Life in Years		4 years 255 days	5 years 164 days			6 years 211 days
Warrant, Risk Free Interest Rate			1.73%			1.43%
Warrant, Warrant Liability (in Dollars)		33,400	29,310			23,714
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		$ 3.33	$ 3.33				$ 3.33
Warrant, Fair Market Value Per Share		$ 5.34	$ 4.42				$ 3.32
Warrant, Expected Volatility			43.35%				40.26%
Warrant, Put Option (in Dollars)		20,200
Warrant, Market Price Option (in Dollars)		40,200
Warrant, Remaining Life in Years		4 years 255 days	5 years 164 days				6 years 62 days
Warrant, Risk Free Interest Rate			1.73%				2.00%
Warrant, Warrant Liability (in Dollars)		40,200	31,163				19,523
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		$ 3.69	$ 3.69					$ 3.69
Warrant, Fair Market Value Per Share		$ 5.34	$ 4.42					$ 3.69
Warrant, Expected Volatility			43.35%					40.20%
Warrant, Put Option (in Dollars)		20,200
Warrant, Market Price Option (in Dollars)		33,000
Warrant, Remaining Life in Years		4 years 255 days	5 years 164 days					6 years 29 days
Warrant, Risk Free Interest Rate			1.73%					2.01%
Warrant, Warrant Liability (in Dollars)		$ 33,000	$ 29,206					$ 21,587