Note 10 - Options and Warrants to Purchase Common Stock (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2015

Dec. 31, 2014

Options And Warrants To Purchase Common Stock [Abstract]

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

		Warrants Outstanding and Exercisable
Exercise Price		Number Outstanding		Weighted Average Remaining Contractual Life (years)		Weighted Average Exercise Price
$	0.75		139,340		0.50	$	0.75
$	0.78		213,402		0.84	$	0.78
$	0.80		124,481		0.75	$	0.80
$	1.00		180,000		0.56	$	1.00
$	1.15		461,340		6.08	$	1.15
$	2.00		54,367		1.34	$	2.00
			1,172,930		2.83	$	1.01

	Warrants Outstanding and Exercisable
Exercise Price	Number Outstanding		Weighted Average Remaining Contractual Life (years)		Weighted Average Exercise Price
$ 0.75		139,340		0.75	$	0.75
$ 0.78		213,402		1.09	$	0.78
$ 0.80		124,481		1.00	$	0.80
$ 1.00		180,000		0.81	$	1.00
$ 1.15		461,340		6.33	$	1.15
$ 2.00		54,367		1.59	$	2.00
		1,172,930		3.08	$	1.01

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	March 31, 2015
	Shares		Weighted Average Exercise Price
Outstanding at beginning of period		17,053,116	$	1.02
Issued		400,000		0.68
Exercised		--		--
Forfeited		--		--
Outstanding at end of period		17,453,116	$	1.01

	December 31, 2014				December 31, 2013
	Shares		Weighted Average Exercise Price		Shares			Weighted Average Exercise Price
Outstanding at beginning of period		15,878,116	$	1.03		15,455,471		$	1.04
Issued		1,175,000		0.84		760,867			1.19
Exercised		--		--		--			--
Forfeited		--		--		(338,222	)	$	1.73
Outstanding at end of period		17,053,116	$	1.02		15,878,116		$	1.03

Summary Of Vesting Information For Stock Options [Table Text Block]

		Vesting Information
Shares		Frequency	Begin Date	End Date
	200,000	Quarterly	03/31/2015	12/31/2015
	200,000	Annually	02/05/2016	02/05/2018

	Vesting Information
Shares	Frequency	Begin Date	End Date
200,000	Quarterly	03/31/2014	12/31/2014
375,000	Immediately	06/10/2014	06/10/2014
600,000	Monthly	06/10/2014	06/09/2017

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

Options Outstanding						Options Exercisable
Number Outstanding		Weighted Average Remaining Contractual Life (years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
	200,000		9.88	$	0.66		50,000	$	0.66
	200,000		9.88	$	0.68		--	$	0.68
	7,358,277		3.69	$	0.70		7,358,277	$	0.70
	3,405,134		6.44	$	0.83		3,405,134	$	0.83
	975,000		9.20	$	0.84		541,667	$	0.84
	60,000		1.25	$	1.00		60,000	$	1.00
	300,000		8.39	$	1.10		100,000	$	1.10
	300,000		8.24	$	1.15		158,333	$	1.15
	100,000		2.84	$	1.24		100,000	$	1.24
	115,000		5.99	$	1.35		115,000	$	1.35
	125,000		2.84	$	1.45		125,000	$	1.45
	330,000		6.70	$	1.55		321,667	$	1.55
	7,645		2.84	$	1.58		7,645	$	1.58
	3,077,060		7.65	$	1.66		3,077,060	$	1.66
	900,000		6.39	$	1.90		900,000	$	1.90
	17,453,116		5.72	$	1.01		16,319,783	$	1.02

Options Outstanding						Options Exercisable
Number Outstanding		Weighted Average Remaining Contractual Life (years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
	7,358,277		3.94	$	0.70		7,358,277	$	0.70
	3,405,134		6.69	$	0.83		3,405,134	$	0.83
	975,000		9.45	$	0.84		491,667	$	0.84
	60,000		1.50	$	1.00		60,000	$	1.00
	300,000		8.64	$	1.10		100,000	$	1.10
	300,000		8.48	$	1.15		133,333	$	1.15
	100,000		3.09	$	1.24		100,000	$	1.24
	115,000		6.24	$	1.35		115,000	$	1.35
	125,000		3.09	$	1.45		125,000	$	1.45
	330,000		6.95	$	1.55		296,667	$	1.55
	7,645		3.09	$	1.58		7,645	$	1.58
	3,077,060		7.89	$	1.66		3,077,060	$	1.66
	900,000		6.64	$	1.90		900,000	$	1.90
	17,053,116		5.87	$	1.02		16,169,783	$	1.02

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2015			2014
Dividend Yield		0	%		0	%
Expected Life (years)		5.6			5.2
Expected Volatility		51	%		58	%
Risk Free Interest Rate		1.47	%		1.60	%