Note 11 - Stock-based Compensation (Details) - Stock Option Activities (USD $)			9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Note 11 - Stock-based Compensation (Details) - Stock Option Activities [Line Items]
Shares	7,114,250	5,836,500
Weighted average exercise price per share	$ 0.20	$ 0.45
Granted					10,650,000		7,120,000	4,000,000
Granted, weighted average exercise price per share					$ 0.31		$ 0.73	$ 0.05
Exercised							(345,000)
Exercised, weighted average exercise price per share							$ 0.46
Forfeited			(559,250)	(1,251,000)	(357,500)	(1,255,250)	(3,763,500)	(836,000)
Forfeited, weighted average exercise price per share			$ 0.29	$ 0.43	$ 0.29	$ 0.57	$ 0.12	$ 0.57
Shares	7,114,250	5,836,500	6,555,000	4,585,500	16,847,500	3,330,250	19,859,000	6,494,250
Weighted average exercise price per share	$ 0.20	$ 0.45	$ 0.19	$ 0.46	$ 0.27	$ 0.41	$ 0.46	$ 0.21