Note 14 - Employee Equity Incentive Plans (Details) - Stock Option Activity (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock Option Activity [Abstract]
Number of shares	3,222,500	3,130,000	5,745,000
Weighted average exercise price (per share)	$ 0.21	$ 0.20	$ 0.29
Weighted average remaining contractual term (in years)	1 year 164 days	1 year 215 days	1 year 255 days
Aggregate intrinsic value	$ 366,148	$ 364,900	$ 93,945
Vested and exercisable at March 31, 2015	2,872,500
Vested and exercisable at March 31, 2015	$ 0.21
Vested and exercisable at March 31, 2015	1 year 47 days
Vested and exercisable at March 31, 2015	$ 337,348
Number of shares	100,000	150,000
Weighted average exercise price (per share)	$ 0.30	$ 0.16
Number of shares	(7,500)	(150,000)
Weighted average exercise price (per share)	$ 0.10	$ 0.13
Number of shares	0	(2,615,000)
Weighted average exercise price (per share)	$ 0	$ 0.40