Note 8 - Stock-Based Compensation and Other Employee Benefit Plans (Details) - Options Issued Outside of 2007 Equity Plan (USD $)	9 Months Ended				9 Months Ended								9 Months Ended								1 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014 Minimum [Member] Outside of the 2007 Plan [Member]	Jan. 01, 2014 Minimum [Member] Outside of the 2007 Plan [Member]	Sep. 30, 2013 Minimum [Member] Outside of the 2007 Plan [Member]	Jan. 01, 2013 Minimum [Member] Outside of the 2007 Plan [Member]	Sep. 30, 2014 Minimum [Member]	Dec. 31, 2013 Minimum [Member]	Sep. 30, 2013 Minimum [Member]	Dec. 31, 2012 Minimum [Member]	Sep. 30, 2014 Maximum [Member] Outside of the 2007 Plan [Member]	Jan. 01, 2014 Maximum [Member] Outside of the 2007 Plan [Member]	Sep. 30, 2013 Maximum [Member] Outside of the 2007 Plan [Member]	Jan. 01, 2013 Maximum [Member] Outside of the 2007 Plan [Member]	Sep. 30, 2014 Maximum [Member]	Dec. 31, 2013 Maximum [Member]	Sep. 30, 2013 Maximum [Member]	Dec. 31, 2012 Maximum [Member]	Feb. 20, 2014 Outside of the 2007 Plan [Member]	Sep. 30, 2014 Outside of the 2007 Plan [Member]	Sep. 30, 2013 Outside of the 2007 Plan [Member]	Jan. 01, 2014 Outside of the 2007 Plan [Member]	Jan. 01, 2013 Outside of the 2007 Plan [Member]
Note 8 - Stock-Based Compensation and Other Employee Benefit Plans (Details) - Options Issued Outside of 2007 Equity Plan [Line Items]
Options Outstanding, balance (in Shares)	8,601,086	8,561,086	8,561,086	8,518,418																		17,521,719	15,347,045	16,398,395	13,338,220
Price per share, balance					$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.23	$ 0.23	$ 0.23	$ 0.23	$ 1.00	$ 1.00	$ 1.89	$ 1.89	$ 1.89	$ 1.89	$ 1.89	$ 1.89
Weighted Average Price per Share, balance	$ 0.44	$ 0.44	$ 0.44	$ 0.44																		$ 0.40	$ 0.36	$ 0.39	$ 0.41
Options Outstanding, granted (in Shares)	40,000	40,000																			40,000	1,165,199	2,008,825
Price per share, granted	$ 0.63	$ 0.28			$ 0.43								$ 0.65										$ 0.30
Weighted Average Price per Share, granted	$ 0.63	$ 0.28			$ 0.43								$ 0.65								$ 0.35		$ 0.30
Options Outstanding, exercised (in Shares)	(41,875)																					(41,875)
Price per share, exercised																						$ 0.30
Weighted Average Price per Share, exercised																						$ 0.30